Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches from Greg Kroah-Hartman:
 "Here is the big driver core merge for 3.9-rc1

  There are two major series here, both of which touch lots of drivers
  all over the kernel, and will cause you some merge conflicts:

   - add a new function called devm_ioremap_resource() to properly be
     able to check return values.

   - remove CONFIG_EXPERIMENTAL

  Other than those patches, there's not much here, some minor fixes and
  updates"

Fix up trivial conflicts

* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
  base: memory: fix soft/hard_offline_page permissions
  drivercore: Fix ordering between deferred_probe and exiting initcalls
  backlight: fix class_find_device() arguments
  TTY: mark tty_get_device call with the proper const values
  driver-core: constify data for class_find_device()
  firmware: Ignore abort check when no user-helper is used
  firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
  firmware: Make user-mode helper optional
  firmware: Refactoring for splitting user-mode helper code
  Driver core: treat unregistered bus_types as having no devices
  watchdog: Convert to devm_ioremap_resource()
  thermal: Convert to devm_ioremap_resource()
  spi: Convert to devm_ioremap_resource()
  power: Convert to devm_ioremap_resource()
  mtd: Convert to devm_ioremap_resource()
  mmc: Convert to devm_ioremap_resource()
  mfd: Convert to devm_ioremap_resource()
  media: Convert to devm_ioremap_resource()
  iommu: Convert to devm_ioremap_resource()
  drm: Convert to devm_ioremap_resource()
  ...

Documentation/CodingStyle

@@ -546,15 +546,7 @@ config AUDIT
 	  logging of avc messages output).  Does not do system-call
 	  auditing without CONFIG_AUDITSYSCALL.
 
-Features that might still be considered unstable should be defined as
-dependent on "EXPERIMENTAL":
-
-config SLUB
-	depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT
-	bool "SLUB (Unqueued Allocator)"
-	...
-
-while seriously dangerous features (such as write support for certain
+Seriously dangerous features (such as write support for certain
 filesystems) should advertise this prominently in their prompt string:
 
 config ADFS_FS_RW

Documentation/DocBook/kernel-hacking.tmpl

@@ -1184,13 +1184,6 @@ static struct block_device_operations opt_fops = {
      <filename>Documentation/kbuild/kconfig-language.txt</filename>.
     </para>
 
-    <para>
-     You may well want to make your CONFIG option only visible if
-     <symbol>CONFIG_EXPERIMENTAL</symbol> is enabled: this serves as a
-     warning to users.  There many other fancy things you can do: see
-     the various <filename>Kconfig</filename> files for ideas.
-    </para>
-
     <para>
      In your description of the option, make sure you address both the
      expert user and the user who knows nothing about your feature.  Mention

Documentation/DocBook/kgdb.tmpl

@@ -94,10 +94,8 @@
   <sect1 id="CompileKGDB">
     <title>Kernel config options for kgdb</title>
     <para>
-    To enable <symbol>CONFIG_KGDB</symbol> you should first turn on
-    "Prompt for development and/or incomplete code/drivers"
-    (CONFIG_EXPERIMENTAL) in  "General setup", then under the
-    "Kernel debugging" select "KGDB: kernel debugger".
+    To enable <symbol>CONFIG_KGDB</symbol> you should look under
+    "Kernel debugging" and select "KGDB: kernel debugger".
     </para>
     <para>
     While it is not a hard requirement that you have symbols in your

Documentation/driver-model/devres.txt

@@ -266,7 +266,8 @@ IOMAP
   devm_ioremap()
   devm_ioremap_nocache()
   devm_iounmap()
-  devm_request_and_ioremap() : checks resource, requests region, ioremaps
+  devm_ioremap_resource() : checks resource, requests memory region, ioremaps
+  devm_request_and_ioremap() : obsoleted by devm_ioremap_resource()
   pcim_iomap()
   pcim_iounmap()
   pcim_iomap_table()	: array of mapped addresses indexed by BAR
@@ -288,3 +289,7 @@ PINCTRL
 PWM
   devm_pwm_get()
   devm_pwm_put()
+
+PHY
+  devm_usb_get_phy()
+  devm_usb_put_phy()

Documentation/dynamic-debug-howto.txt

@@ -6,8 +6,16 @@ This document describes how to use the dynamic debug (dyndbg) feature.
 
 Dynamic debug is designed to allow you to dynamically enable/disable
 kernel code to obtain additional kernel information.  Currently, if
-CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() calls can
-be dynamically enabled per-callsite.
+CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() and
+print_hex_dump_debug()/print_hex_dump_bytes() calls can be dynamically
+enabled per-callsite.
+
+If CONFIG_DYNAMIC_DEBUG is not set, print_hex_dump_debug() is just
+shortcut for print_hex_dump(KERN_DEBUG).
+
+For print_hex_dump_debug()/print_hex_dump_bytes(), format string is
+its 'prefix_str' argument, if it is constant string; or "hexdump"
+in case 'prefix_str' is build dynamically.
 
 Dynamic debug has even more useful features:
 
@@ -202,6 +210,9 @@ The flags are:
   t    Include thread ID in messages not generated from interrupt context
   _    No flags are set. (Or'd with others on input)
 
+For print_hex_dump_debug() and print_hex_dump_bytes(), only 'p' flag
+have meaning, other flags ignored.
+
 For display, the flags are preceded by '='
 (mnemonic: what the flags are currently equal to).
 

Documentation/intel_txt.txt

@@ -192,7 +192,7 @@ grub.conf needs to be modified as follows:
 
 The kernel option for enabling Intel TXT support is found under the
 Security top-level menu and is called "Enable Intel(R) Trusted
-Execution Technology (TXT)".  It is marked as EXPERIMENTAL and
+Execution Technology (TXT)".  It is considered EXPERIMENTAL and
 depends on the generic x86 support (to allow maximum flexibility in
 kernel build options), since the tboot code will detect whether the
 platform actually supports Intel TXT and thus whether any of the

Documentation/laptops/thinkpad-acpi.txt

@@ -1398,7 +1398,7 @@ Sysfs notes:
 EXPERIMENTAL: UWB
 -----------------
 
-This feature is marked EXPERIMENTAL because it has not been extensively
+This feature is considered EXPERIMENTAL because it has not been extensively
 tested and validated in various ThinkPad models yet.  The feature may not
 work as expected. USE WITH CAUTION! To use this feature, you need to supply
 the experimental=1 parameter when loading the module.

Documentation/zh_CN/CodingStyle

@@ -462,13 +462,6 @@ config AUDIT
 	  logging of avc messages output).  Does not do system-call
 	  auditing without CONFIG_AUDITSYSCALL.
 
-仍然被认为不够稳定的功能应该被定义为依赖于“EXPERIMENTAL”：
-
-config SLUB
-	depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT
-	bool "SLUB (Unqueued Allocator)"
-	...
-
 而那些危险的功能（比如某些文件系统的写支持）应该在它们的提示字符串里显著的声明这
 一点：
 

arch/alpha/Kconfig

@@ -555,8 +555,7 @@ config NR_CPUS
           with working support have a maximum of 4 CPUs.
 
 config ARCH_DISCONTIGMEM_ENABLE
-	bool "Discontiguous Memory Support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Discontiguous Memory Support"
 	help
 	  Say Y to support efficient handling of discontiguous physical memory,
 	  for architectures which are either NUMA (Non-Uniform Memory Access)

arch/arm/Kconfig

@@ -1530,7 +1530,6 @@ config SMP
 
 config SMP_ON_UP
 	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	depends on SMP && !XIP_KERNEL
 	default y
 	help
@@ -1731,7 +1730,7 @@ config AEABI
 
 config OABI_COMPAT
 	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
-	depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
+	depends on AEABI && !THUMB2_KERNEL
 	default y
 	help
 	  This option preserves the old syscall interface along with the
@@ -1855,7 +1854,6 @@ config SECCOMP
 
 config CC_STACKPROTECTOR
 	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	help
 	  This option turns on the -fstack-protector GCC feature. This
 	  feature puts, at the beginning of functions, a canary value on
@@ -1872,7 +1870,7 @@ config XEN_DOM0
 
 config XEN
 	bool "Xen guest support on ARM (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && ARM && OF
+	depends on ARM && OF
 	depends on CPU_V7 && !CPU_V6
 	help
 	  Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
@@ -1941,7 +1939,7 @@ config ZBOOT_ROM
 
 choice
 	prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
-	depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
+	depends on ZBOOT_ROM && ARCH_SH7372
 	default ZBOOT_ROM_NONE
 	help
 	  Include experimental SD/MMC loading code in the ROM-able zImage.
@@ -1970,7 +1968,7 @@ endchoice
 
 config ARM_APPENDED_DTB
 	bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
-	depends on OF && !ZBOOT_ROM && EXPERIMENTAL
+	depends on OF && !ZBOOT_ROM
 	help
 	  With this option, the boot code will look for a device tree binary
 	  (DTB) appended to zImage
@@ -2088,7 +2086,7 @@ config XIP_PHYS_ADDR
 
 config KEXEC
 	bool "Kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
+	depends on (!SMP || HOTPLUG_CPU)
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
@@ -2110,7 +2108,6 @@ config ATAGS_PROC
 
 config CRASH_DUMP
 	bool "Build kdump crash kernel (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	help
 	  Generate crash dump after being started by kexec. This should
 	  be normally only set in special crash dump kernels which are
@@ -2177,7 +2174,7 @@ config CPU_FREQ_S3C
 
 config CPU_FREQ_S3C24XX
 	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
-	depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
+	depends on ARCH_S3C24XX && CPU_FREQ
 	select CPU_FREQ_S3C
 	help
 	  This enables the CPUfreq driver for the Samsung S3C24XX family
@@ -2189,7 +2186,7 @@ config CPU_FREQ_S3C24XX
 
 config CPU_FREQ_S3C24XX_PLL
 	bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
-	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
+	depends on CPU_FREQ_S3C24XX
 	help
 	  Compile in support for changing the PLL frequency from the
 	  S3C24XX series CPUfreq driver. The PLL takes time to settle
@@ -2252,7 +2249,7 @@ config FPE_NWFPE_XP
 
 config FPE_FASTFPE
 	bool "FastFPE math emulation (EXPERIMENTAL)"
-	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
+	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
 	---help---
 	  Say Y here to include the FAST floating point emulator in the kernel.
 	  This is an experimental much faster emulator which now also has full

arch/arm/Kconfig.debug

@@ -32,7 +32,7 @@ config FRAME_POINTER
 
 config ARM_UNWIND
 	bool "Enable stack unwinding support (EXPERIMENTAL)"
-	depends on AEABI && EXPERIMENTAL
+	depends on AEABI
 	default y
 	help
 	  This option enables stack unwinding support in the kernel

arch/arm/mach-omap2/gpmc.c

@@ -1134,11 +1134,9 @@ static int gpmc_probe(struct platform_device *pdev)
 	phys_base = res->start;
 	mem_size = resource_size(res);
 
-	gpmc_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!gpmc_base) {
-		dev_err(&pdev->dev, "error: request memory / ioremap\n");
-		return -EADDRNOTAVAIL;
-	}
+	gpmc_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(gpmc_base))
+		return PTR_ERR(gpmc_base);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res == NULL)

arch/arm/mach-s3c24xx/Kconfig

@@ -291,8 +291,8 @@ config MACH_JIVE
 	  Say Y here if you are using the Logitech Jive.
 
 config MACH_JIVE_SHOW_BOOTLOADER
-	bool "Allow access to bootloader partitions in MTD (EXPERIMENTAL)"
-	depends on MACH_JIVE && EXPERIMENTAL
+	bool "Allow access to bootloader partitions in MTD"
+	depends on MACH_JIVE
 
 config MACH_S3C2413
 	bool

arch/arm/mach-tegra/tegra2_emc.c

@@ -312,11 +312,9 @@ static int tegra_emc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	emc_regbase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!emc_regbase) {
-		dev_err(&pdev->dev, "failed to remap registers\n");
-		return -ENOMEM;
-	}
+	emc_regbase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(emc_regbase))
+		return PTR_ERR(emc_regbase);
 
 	pdata = pdev->dev.platform_data;
 

arch/arm/plat-omap/dmtimer.c

@@ -808,11 +808,9 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
 		return  -ENOMEM;
 	}
 
-	timer->io_base = devm_request_and_ioremap(dev, mem);
-	if (!timer->io_base) {
-		dev_err(dev, "%s: region already claimed.\n", __func__);
-		return -ENOMEM;
-	}
+	timer->io_base = devm_ioremap_resource(dev, mem);
+	if (IS_ERR(timer->io_base))
+		return PTR_ERR(timer->io_base);
 
 	if (dev->of_node) {
 		if (of_find_property(dev->of_node, "ti,timer-alwon", NULL))

arch/arm/plat-samsung/adc.c

@@ -386,11 +386,9 @@ static int s3c_adc_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	adc->regs = devm_request_and_ioremap(dev, regs);
-	if (!adc->regs) {
-		dev_err(dev, "failed to map registers\n");
-		return -ENXIO;
-	}
+	adc->regs = devm_ioremap_resource(dev, regs);
+	if (IS_ERR(adc->regs))
+		return PTR_ERR(adc->regs);
 
 	ret = regulator_enable(adc->vdd);
 	if (ret)

arch/blackfin/Kconfig

@@ -560,8 +560,7 @@ choice
 	  accurate - This option is therefore marked experimental.
 
 config BFIN_KERNEL_CLOCK_MEMINIT_CALC
-	bool "Calculate Timings (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Calculate Timings"
 
 config BFIN_KERNEL_CLOCK_MEMINIT_SPEC
 	bool "Provide accurate Timings based on target SCLK"
@@ -1118,7 +1117,7 @@ endchoice
 
 comment "Memory Protection Unit"
 config MPU
-	bool "Enable the memory protection unit (EXPERIMENTAL)"
+	bool "Enable the memory protection unit"
 	default n
 	help
 	  Use the processor's MPU to protect applications from accessing
@@ -1440,7 +1439,6 @@ config BFIN_CPU_FREQ
 
 config CPU_VOLTAGE
 	bool "CPU Voltage scaling"
-	depends on EXPERIMENTAL
 	depends on CPU_FREQ
 	default n
 	help

arch/cris/arch-v32/drivers/Kconfig

@@ -680,7 +680,7 @@ config ETRAX_SPI_MMC_BOARD
 
 config SPI_ETRAX_SSER
 	tristate
-	depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+	depends on SPI_MASTER && ETRAX_ARCH_V32
 	select SPI_BITBANG
 	help
 	  This enables using an synchronous serial (sser) port as a
@@ -689,7 +689,7 @@ config SPI_ETRAX_SSER
 
 config SPI_ETRAX_GPIO
 	tristate
-	depends on SPI_MASTER && ETRAX_ARCH_V32 && EXPERIMENTAL
+	depends on SPI_MASTER && ETRAX_ARCH_V32
 	select SPI_BITBANG
 	help
 	  This enables using GPIO pins port as a SPI master controller

arch/ia64/Kconfig

@@ -374,8 +374,8 @@ config NR_CPUS
 	  performance hit.
 
 config HOTPLUG_CPU
-	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-	depends on SMP && EXPERIMENTAL
+	bool "Support for hot-pluggable CPUs"
+	depends on SMP
 	select HOTPLUG
 	default n
 	---help---
@@ -554,8 +554,8 @@ config IA64_HP_AML_NFW
 source "drivers/sn/Kconfig"
 
 config KEXEC
-	bool "kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
+	bool "kexec system call"
+	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot

arch/ia64/kvm/Kconfig

@@ -20,7 +20,7 @@ if VIRTUALIZATION
 config KVM
 	tristate "Kernel-based Virtual Machine (KVM) support"
 	depends on BROKEN
-	depends on HAVE_KVM && MODULES && EXPERIMENTAL
+	depends on HAVE_KVM && MODULES
 	# for device assignment:
 	depends on PCI
 	depends on BROKEN

arch/ia64/xen/Kconfig

@@ -5,7 +5,7 @@
 config XEN
 	bool "Xen hypervisor support"
 	default y
-	depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB && EXPERIMENTAL
+	depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB
 	select XEN_XENCOMM
 	select NO_IDLE_HZ
 	# followings are required to save/restore.

arch/microblaze/platform/Kconfig.platform

@@ -20,7 +20,7 @@ endchoice
 
 config SELFMOD
 	bool "Use self modified code for intc/timer"
-	depends on EXPERIMENTAL && NO_MMU
+	depends on NO_MMU
 	default n
 	help
 	  This choice enables self-modified code for interrupt controller

arch/mips/Kconfig

@@ -169,7 +169,7 @@ config MACH_DECSTATION
 	select SYS_HAS_CPU_R3000
 	select SYS_HAS_CPU_R4X00
 	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_128HZ
 	select SYS_SUPPORTS_256HZ
@@ -205,7 +205,7 @@ config MACH_JAZZ
 	select ISA
 	select SYS_HAS_CPU_R4X00
 	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_100HZ
 	help
 	 This a family of machines based on the MIPS R4030 chipset which was
@@ -395,7 +395,6 @@ config PNX8550_STB810
 
 config PMC_MSP
 	bool "PMC-Sierra MSP chipsets"
-	depends on EXPERIMENTAL
 	select CEVT_R4K
 	select CSRC_R4K
 	select DMA_NONCOHERENT
@@ -494,8 +493,7 @@ config SGI_IP27
 	  here.
 
 config SGI_IP28
-	bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "SGI IP28 (Indigo2 R10k)"
 	select FW_ARC
 	select FW_ARC64
 	select BOOT_ELF64
@@ -553,7 +551,6 @@ config SGI_IP32
 
 config SIBYTE_CRHINE
 	bool "Sibyte BCM91120C-CRhine"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select SIBYTE_BCM1120
@@ -564,7 +561,6 @@ config SIBYTE_CRHINE
 
 config SIBYTE_CARMEL
 	bool "Sibyte BCM91120x-Carmel"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select SIBYTE_BCM1120
@@ -575,7 +571,6 @@ config SIBYTE_CARMEL
 
 config SIBYTE_CRHONE
 	bool "Sibyte BCM91125C-CRhone"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select SIBYTE_BCM1125
@@ -587,7 +582,6 @@ config SIBYTE_CRHONE
 
 config SIBYTE_RHONE
 	bool "Sibyte BCM91125E-Rhone"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select SIBYTE_BCM1125H
@@ -612,7 +606,6 @@ config SIBYTE_SWARM
 
 config SIBYTE_LITTLESUR
 	bool "Sibyte BCM91250C2-LittleSur"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select HAVE_PATA_PLATFORM
@@ -626,7 +619,6 @@ config SIBYTE_LITTLESUR
 
 config SIBYTE_SENTOSA
 	bool "Sibyte BCM91250E-Sentosa"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select DMA_COHERENT
 	select NR_CPUS_DEFAULT_2
@@ -675,7 +667,7 @@ config SNI_RM
 	select R5000_CPU_SCACHE
 	select SYS_HAS_EARLY_PRINTK
 	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
+	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
 	select SYS_SUPPORTS_LITTLE_ENDIAN
@@ -779,7 +771,6 @@ config CAVIUM_OCTEON_REFERENCE_BOARD
 
 config NLM_XLR_BOARD
 	bool "Netlogic XLR/XLS based systems"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select NLM_COMMON
 	select SYS_HAS_CPU_XLR
@@ -808,7 +799,6 @@ config NLM_XLR_BOARD
 
 config NLM_XLP_BOARD
 	bool "Netlogic XLP based systems"
-	depends on EXPERIMENTAL
 	select BOOT_ELF32
 	select NLM_COMMON
 	select SYS_HAS_CPU_XLP
@@ -1374,7 +1364,6 @@ config CPU_R5500
 
 config CPU_R6000
 	bool "R6000"
-	depends on EXPERIMENTAL
 	depends on SYS_HAS_CPU_R6000
 	select CPU_SUPPORTS_32BIT_KERNEL
 	help
@@ -1392,7 +1381,6 @@ config CPU_NEVADA
 
 config CPU_R8000
 	bool "R8000"
-	depends on EXPERIMENTAL
 	depends on SYS_HAS_CPU_R8000
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_64BIT_KERNEL
@@ -1767,7 +1755,7 @@ config PAGE_SIZE_4KB
 
 config PAGE_SIZE_8KB
 	bool "8kB"
-	depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
+	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
 	help
 	  Using 8kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available
@@ -1794,7 +1782,7 @@ config PAGE_SIZE_32KB
 
 config PAGE_SIZE_64KB
 	bool "64kB"
-	depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
+	depends on !CPU_R3000 && !CPU_TX39XX
 	help
 	  Using 64kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available on
@@ -2310,8 +2298,7 @@ config HZ
 source "kernel/Kconfig.preempt"
 
 config KEXEC
-	bool "Kexec system call (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Kexec system call"
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot

arch/mips/jazz/Kconfig

@@ -1,6 +1,6 @@
 config ACER_PICA_61
-	bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
-	depends on MACH_JAZZ && EXPERIMENTAL
+	bool "Support for Acer PICA 1 chipset"
+	depends on MACH_JAZZ
 	select DMA_NONCOHERENT
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	help
@@ -13,7 +13,7 @@ config MIPS_MAGNUM_4000
 	bool "Support for MIPS Magnum 4000"
 	depends on MACH_JAZZ
 	select DMA_NONCOHERENT
-	select SYS_SUPPORTS_BIG_ENDIAN if EXPERIMENTAL
+	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	help
 	  This is a machine with a R4000 100 MHz CPU. To compile a Linux

arch/mips/lantiq/xway/dma.c

@@ -21,6 +21,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/clk.h>
+#include <linux/err.h>
 
 #include <lantiq_soc.h>
 #include <xway_dma.h>
@@ -223,8 +224,8 @@ ltq_dma_init(struct platform_device *pdev)
 		panic("Failed to get dma resource");
 
 	/* remap dma register range */
-	ltq_dma_membase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ltq_dma_membase)
+	ltq_dma_membase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ltq_dma_membase))
 		panic("Failed to remap dma resource");
 
 	/* power up and reset the dma engine */

arch/mips/lantiq/xway/gptu.c

@@ -150,11 +150,9 @@ static int gptu_probe(struct platform_device *pdev)
 	}
 
 	/* remap gptu register range */
-	gptu_membase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!gptu_membase) {
-		dev_err(&pdev->dev, "Failed to remap resource\n");
-		return -ENOMEM;
-	}
+	gptu_membase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(gptu_membase))
+		return PTR_ERR(gptu_membase);
 
 	/* enable our clock */
 	clk = clk_get(&pdev->dev, NULL);

arch/mips/pci/pci-lantiq.c

@@ -214,13 +214,13 @@ static int ltq_pci_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	ltq_pci_membase = devm_request_and_ioremap(&pdev->dev, res_bridge);
-	ltq_pci_mapped_cfg = devm_request_and_ioremap(&pdev->dev, res_cfg);
+	ltq_pci_membase = devm_ioremap_resource(&pdev->dev, res_bridge);
+	if (IS_ERR(ltq_pci_membase))
+		return PTR_ERR(ltq_pci_membase);
 
-	if (!ltq_pci_membase || !ltq_pci_mapped_cfg) {
-		dev_err(&pdev->dev, "failed to remap resources\n");
-		return -ENOMEM;
-	}
+	ltq_pci_mapped_cfg = devm_ioremap_resource(&pdev->dev, res_cfg);
+	if (IS_ERR(ltq_pci_mapped_cfg))
+		return PTR_ERR(ltq_pci_mapped_cfg);
 
 	ltq_pci_startup(pdev);
 

arch/mips/sgi-ip27/Kconfig

@@ -13,7 +13,6 @@ config SGI_SN_M_MODE
 
 config SGI_SN_N_MODE
 	bool "IP27 N-Mode"
-	depends on EXPERIMENTAL
 	help
 	  The nodes of Origin, Onyx, Fuel and Tezro systems can be configured
 	  in either N-Modes which allows for more nodes or M-Mode which allows

arch/parisc/Kconfig

@@ -192,12 +192,12 @@ config PARISC_PAGE_SIZE_4KB
 	  If you don't know what to do, choose 4KB.
 
 config PARISC_PAGE_SIZE_16KB
-	bool "16KB (EXPERIMENTAL)"
-	depends on PA8X00 && EXPERIMENTAL
+	bool "16KB"
+	depends on PA8X00
 
 config PARISC_PAGE_SIZE_64KB
-	bool "64KB (EXPERIMENTAL)"
-	depends on PA8X00 && EXPERIMENTAL
+	bool "64KB"
+	depends on PA8X00
 
 endchoice
 

arch/powerpc/Kconfig

@@ -332,7 +332,7 @@ config SWIOTLB
 
 config HOTPLUG_CPU
 	bool "Support for enabling/disabling CPUs"
-	depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || \
+	depends on SMP && HOTPLUG && (PPC_PSERIES || \
 	PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC))
 	---help---
 	  Say Y here to be able to disable and re-enable individual
@@ -354,8 +354,8 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
 	def_bool y
 
 config KEXEC
-	bool "kexec system call (EXPERIMENTAL)"
-	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) && EXPERIMENTAL
+	bool "kexec system call"
+	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP))
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
@@ -850,8 +850,8 @@ config LOWMEM_CAM_NUM
 	default 3
 
 config DYNAMIC_MEMSTART
-	bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
+	bool "Enable page aligned dynamic load address for kernel"
+	depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x)
 	select NONSTATIC_KERNEL
 	help
 	  This option enables the kernel to be loaded at any page aligned
@@ -868,8 +868,8 @@ config DYNAMIC_MEMSTART
 	  This option is overridden by CONFIG_RELOCATABLE
 
 config RELOCATABLE
-	bool "Build a relocatable kernel (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && 44x
+	bool "Build a relocatable kernel"
+	depends on ADVANCED_OPTIONS && FLATMEM && 44x
 	select NONSTATIC_KERNEL
 	help
 	  This builds a kernel image that is capable of running at the

arch/powerpc/kvm/Kconfig

@@ -41,7 +41,7 @@ config KVM_BOOK3S_PR
 
 config KVM_BOOK3S_32
 	tristate "KVM support for PowerPC book3s_32 processors"
-	depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT
+	depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
 	select KVM
 	select KVM_BOOK3S_32_HANDLER
 	select KVM_BOOK3S_PR
@@ -56,7 +56,7 @@ config KVM_BOOK3S_32
 
 config KVM_BOOK3S_64
 	tristate "KVM support for PowerPC book3s_64 processors"
-	depends on EXPERIMENTAL && PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64
 	select KVM_BOOK3S_64_HANDLER
 	select KVM
 	---help---
@@ -97,7 +97,7 @@ config KVM_BOOKE_HV
 
 config KVM_440
 	bool "KVM support for PowerPC 440 processors"
-	depends on EXPERIMENTAL && 44x
+	depends on 44x
 	select KVM
 	select KVM_MMIO
 	---help---
@@ -122,7 +122,7 @@ config KVM_EXIT_TIMING
 
 config KVM_E500V2
 	bool "KVM support for PowerPC E500v2 processors"
-	depends on EXPERIMENTAL && E500 && !PPC_E500MC
+	depends on E500 && !PPC_E500MC
 	select KVM
 	select KVM_MMIO
 	select MMU_NOTIFIER
@@ -137,7 +137,7 @@ config KVM_E500V2
 
 config KVM_E500MC
 	bool "KVM support for PowerPC E500MC/E5500 processors"
-	depends on EXPERIMENTAL && PPC_E500MC
+	depends on PPC_E500MC
 	select KVM
 	select KVM_MMIO
 	select KVM_BOOKE_HV

arch/powerpc/platforms/85xx/Kconfig

@@ -277,7 +277,6 @@ config P5040_DS
 
 config PPC_QEMU_E500
 	bool "QEMU generic e500 platform"
-	depends on EXPERIMENTAL
 	select DEFAULT_UIMAGE
 	help
 	  This option enables support for running as a QEMU guest using

arch/powerpc/platforms/cell/Kconfig

@@ -124,7 +124,7 @@ config CBE_CPUFREQ
 
 config CBE_CPUFREQ_PMI_ENABLE
 	bool "CBE frequency scaling using PMI interface"
-	depends on CBE_CPUFREQ && EXPERIMENTAL
+	depends on CBE_CPUFREQ
 	default n
 	help
 	  Select this, if you want to use the PMI interface

arch/powerpc/platforms/ps3/Kconfig

@@ -48,7 +48,7 @@ config PS3_HTAB_SIZE
 	  system will have optimal runtime performance.
 
 config PS3_DYNAMIC_DMA
-	depends on PPC_PS3 && EXPERIMENTAL
+	depends on PPC_PS3
 	bool "PS3 Platform dynamic DMA page table management"
 	default n
 	help

arch/s390/Kconfig

@@ -717,8 +717,8 @@ source "arch/s390/kvm/Kconfig"
 
 config S390_GUEST
 	def_bool y
-	prompt "s390 support for virtio devices (EXPERIMENTAL)"
-	depends on 64BIT && EXPERIMENTAL
+	prompt "s390 support for virtio devices"
+	depends on 64BIT
 	select VIRTUALIZATION
 	select VIRTIO
 	select VIRTIO_CONSOLE

arch/s390/kvm/Kconfig

@@ -18,7 +18,7 @@ if VIRTUALIZATION
 config KVM
 	def_tristate y
 	prompt "Kernel-based Virtual Machine (KVM) support"
-	depends on HAVE_KVM && EXPERIMENTAL
+	depends on HAVE_KVM
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
 	select HAVE_KVM_CPU_RELAX_INTERCEPT

arch/sh/Kconfig

@@ -644,7 +644,7 @@ source kernel/Kconfig.hz
 
 config KEXEC
 	bool "kexec system call (EXPERIMENTAL)"
-	depends on SUPERH32 && EXPERIMENTAL && MMU
+	depends on SUPERH32 && MMU
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
@@ -661,7 +661,7 @@ config KEXEC
 
 config CRASH_DUMP
 	bool "kernel crash dumps (EXPERIMENTAL)"
-	depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
+	depends on SUPERH32 && BROKEN_ON_SMP
 	help
 	  Generate crash dump after being started by kexec.
 	  This should be normally only set in special crash dump kernels
@@ -675,7 +675,7 @@ config CRASH_DUMP
 
 config KEXEC_JUMP
 	bool "kexec jump (EXPERIMENTAL)"
-	depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
+	depends on SUPERH32 && KEXEC && HIBERNATION
 	help
 	  Jump between original kernel and kexeced kernel and invoke
 	  code via KEXEC
@@ -709,7 +709,7 @@ config SECCOMP
 
 config CC_STACKPROTECTOR
 	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
-	depends on SUPERH32 && EXPERIMENTAL
+	depends on SUPERH32
 	help
 	  This option turns on the -fstack-protector GCC feature. This
 	  feature puts, at the beginning of functions, a canary value on
@@ -760,7 +760,7 @@ config NR_CPUS
 
 config HOTPLUG_CPU
 	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-	depends on SMP && HOTPLUG && EXPERIMENTAL
+	depends on SMP && HOTPLUG
 	help
 	  Say Y here to experiment with turning CPUs off and on.  CPUs
 	  can be controlled through /sys/devices/system/cpu.
@@ -839,7 +839,7 @@ config ENTRY_OFFSET
 
 config ROMIMAGE_MMCIF
 	bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
-	depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
+	depends on CPU_SUBTYPE_SH7724
 	help
 	  Say Y here to include experimental MMCIF loading code in
 	  romImage. With this enabled it is possible to write the romImage
@@ -925,7 +925,6 @@ source "fs/Kconfig.binfmt"
 endmenu
 
 menu "Power management options (EXPERIMENTAL)"
-depends on EXPERIMENTAL
 
 source "kernel/power/Kconfig"
 

arch/sh/Kconfig.cpu

@@ -33,7 +33,7 @@ config SH64_FPU_DENORM_FLUSH
 config SH_FPU_EMU
 	def_bool n
 	prompt "FPU emulation support"
-	depends on !SH_FPU && EXPERIMENTAL
+	depends on !SH_FPU
 	help
 	  Selecting this option will enable support for software FPU emulation.
 	  Most SH-3 users will want to say Y here, whereas most SH-4 users will
@@ -68,7 +68,6 @@ config SH_STORE_QUEUES
 
 config SPECULATIVE_EXECUTION
 	bool "Speculative subroutine return"
-	depends on EXPERIMENTAL
 	depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7786
 	help
 	  This enables support for a speculative instruction fetch for

arch/sh/mm/Kconfig

@@ -83,7 +83,7 @@ config 32BIT
 
 config PMB
 	bool "Support 32-bit physical addressing through PMB"
-	depends on MMU && EXPERIMENTAL && CPU_SH4A && !CPU_SH4AL_DSP
+	depends on MMU && CPU_SH4A && !CPU_SH4AL_DSP
 	select 32BIT
 	select UNCACHED_MAPPING
 	help
@@ -110,7 +110,7 @@ config VSYSCALL
 
 config NUMA
 	bool "Non Uniform Memory Access (NUMA) Support"
-	depends on MMU && SYS_SUPPORTS_NUMA && EXPERIMENTAL
+	depends on MMU && SYS_SUPPORTS_NUMA
 	select ARCH_WANT_NUMA_VARIABLE_LOCALITY
 	default n
 	help

arch/tile/kvm/Kconfig

@@ -18,7 +18,7 @@ if VIRTUALIZATION
 
 config KVM
 	tristate "Kernel-based Virtual Machine (KVM) support"
-	depends on HAVE_KVM && MODULES && EXPERIMENTAL
+	depends on HAVE_KVM && MODULES
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
 	---help---

arch/um/Kconfig.net

@@ -157,7 +157,7 @@ config UML_NET_MCAST
 
 config UML_NET_PCAP
 	bool "pcap transport"
-	depends on UML_NET && EXPERIMENTAL
+	depends on UML_NET
 	help
 	The pcap transport makes a pcap packet stream on the host look
 	like an ethernet device inside UML.  This is useful for making

arch/um/Kconfig.um

@@ -45,8 +45,8 @@ config HOSTFS
           say Y or M here; otherwise say N.
 
 config HPPFS
-	tristate "HoneyPot ProcFS (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PROC_FS
+	tristate "HoneyPot ProcFS"
+	depends on PROC_FS
 	help
 	  hppfs (HoneyPot ProcFS) is a filesystem which allows UML /proc
 	  entries to be overridden, removed, or fabricated from the host.
@@ -96,7 +96,7 @@ config MAGIC_SYSRQ
 	  unless you really know what this hack does.
 
 config SMP
-	bool "Symmetric multi-processing support (EXPERIMENTAL)"
+	bool "Symmetric multi-processing support"
 	default n
 	depends on BROKEN
 	help
@@ -126,7 +126,7 @@ config NR_CPUS
 	default "32"
 
 config HIGHMEM
-	bool "Highmem support (EXPERIMENTAL)"
+	bool "Highmem support"
 	depends on !64BIT && BROKEN
 	default n
 	help

arch/x86/Kconfig

@@ -225,7 +225,7 @@ config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 
 config HAVE_INTEL_TXT
 	def_bool y
-	depends on EXPERIMENTAL && INTEL_IOMMU && ACPI
+	depends on INTEL_IOMMU && ACPI
 
 config X86_32_SMP
 	def_bool y
@@ -642,7 +642,7 @@ config PARAVIRT
 
 config PARAVIRT_SPINLOCKS
 	bool "Paravirtualization layer for spinlocks"
-	depends on PARAVIRT && SMP && EXPERIMENTAL
+	depends on PARAVIRT && SMP
 	---help---
 	  Paravirtualized spinlocks allow a pvops backend to replace the
 	  spinlock implementation with something virtualization-friendly
@@ -754,7 +754,7 @@ config GART_IOMMU
 config CALGARY_IOMMU
 	bool "IBM Calgary IOMMU support"
 	select SWIOTLB
-	depends on X86_64 && PCI && EXPERIMENTAL
+	depends on X86_64 && PCI
 	---help---
 	  Support for hardware IOMMUs in IBM's xSeries x366 and x460
 	  systems. Needed to run systems with more than 3GB of memory
@@ -796,7 +796,7 @@ config IOMMU_HELPER
 
 config MAXSMP
 	bool "Enable Maximum number of SMP Processors and NUMA Nodes"
-	depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
+	depends on X86_64 && SMP && DEBUG_KERNEL
 	select CPUMASK_OFFSTACK
 	---help---
 	  Enable maximum number of CPUS and NUMA Nodes for this architecture.
@@ -1132,7 +1132,6 @@ config HIGHMEM64G
 endchoice
 
 choice
-	depends on EXPERIMENTAL
 	prompt "Memory split" if EXPERT
 	default VMSPLIT_3G
 	depends on X86_32
@@ -1209,7 +1208,7 @@ config DIRECT_GBPAGES
 config NUMA
 	bool "Numa Memory Allocation and Scheduler Support"
 	depends on SMP
-	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
+	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI))
 	default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
 	---help---
 	  Enable NUMA (Non Uniform Memory Access) support.
@@ -1304,7 +1303,7 @@ config ARCH_DISCONTIGMEM_DEFAULT
 
 config ARCH_SPARSEMEM_ENABLE
 	def_bool y
-	depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD
+	depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
 	select SPARSEMEM_STATIC if X86_32
 	select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
@@ -1618,8 +1617,7 @@ config CRASH_DUMP
 	  For more details see Documentation/kdump/kdump.txt
 
 config KEXEC_JUMP
-	bool "kexec jump (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "kexec jump"
 	depends on KEXEC && HIBERNATION
 	---help---
 	  Jump between original kernel and kexeced kernel and invoke
@@ -2063,7 +2061,7 @@ config PCI_MMCONFIG
 
 config PCI_CNB20LE_QUIRK
 	bool "Read CNB20LE Host Bridge Windows" if EXPERT
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  Read the PCI windows out of the CNB20LE host bridge. This allows
 	  PCI hotplug to work on systems with the CNB20LE chipset which do
@@ -2267,8 +2265,8 @@ config IA32_AOUT
 	  Support old a.out binaries in the 32bit emulation.
 
 config X86_X32
-	bool "x32 ABI for 64-bit mode (EXPERIMENTAL)"
-	depends on X86_64 && IA32_EMULATION && EXPERIMENTAL
+	bool "x32 ABI for 64-bit mode"
+	depends on X86_64 && IA32_EMULATION
 	---help---
 	  Include code to run binaries for the x32 native 32-bit ABI
 	  for 64-bit processors.  An x32 process gets access to the

arch/x86/um/Kconfig

@@ -37,9 +37,8 @@ config RWSEM_GENERIC_SPINLOCK
 	def_bool !RWSEM_XCHGADD_ALGORITHM
 
 config 3_LEVEL_PGTABLES
-	bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
+	bool "Three-level pagetables" if !64BIT
 	default 64BIT
-	depends on EXPERIMENTAL
 	help
 	Three-level pagetables will let UML have more than 4G of physical
 	memory.  All the memory that can't be mapped directly will be treated

crypto/Kconfig

@@ -134,8 +134,8 @@ config CRYPTO_NULL
 	  These are 'Null' algorithms, used by IPsec, which do nothing.
 
 config CRYPTO_PCRYPT
-	tristate "Parallel crypto engine (EXPERIMENTAL)"
-	depends on SMP && EXPERIMENTAL
+	tristate "Parallel crypto engine"
+	depends on SMP
 	select PADATA
 	select CRYPTO_MANAGER
 	select CRYPTO_AEAD
@@ -292,7 +292,6 @@ config CRYPTO_HMAC
 
 config CRYPTO_XCBC
 	tristate "XCBC support"
-	depends on EXPERIMENTAL
 	select CRYPTO_HASH
 	select CRYPTO_MANAGER
 	help
@@ -303,7 +302,6 @@ config CRYPTO_XCBC
 
 config CRYPTO_VMAC
 	tristate "VMAC support"
-	depends on EXPERIMENTAL
 	select CRYPTO_HASH
 	select CRYPTO_MANAGER
 	help
@@ -932,8 +930,7 @@ config CRYPTO_KHAZAD
 	  <http://www.larc.usp.br/~pbarreto/KhazadPage.html>
 
 config CRYPTO_SALSA20
-	tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Salsa20 stream cipher algorithm"
 	select CRYPTO_BLKCIPHER
 	help
 	  Salsa20 stream cipher algorithm.
@@ -945,9 +942,8 @@ config CRYPTO_SALSA20
 	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 
 config CRYPTO_SALSA20_586
-	tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
+	tristate "Salsa20 stream cipher algorithm (i586)"
 	depends on (X86 || UML_X86) && !64BIT
-	depends on EXPERIMENTAL
 	select CRYPTO_BLKCIPHER
 	help
 	  Salsa20 stream cipher algorithm.
@@ -959,9 +955,8 @@ config CRYPTO_SALSA20_586
 	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 
 config CRYPTO_SALSA20_X86_64
-	tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
+	tristate "Salsa20 stream cipher algorithm (x86_64)"
 	depends on (X86 || UML_X86) && 64BIT
-	depends on EXPERIMENTAL
 	select CRYPTO_BLKCIPHER
 	help
 	  Salsa20 stream cipher algorithm.

drivers/acpi/Kconfig

@@ -176,7 +176,6 @@ config ACPI_FAN
 
 config ACPI_DOCK
 	bool "Dock"
-	depends on EXPERIMENTAL
 	help
 	  This driver supports ACPI-controlled docking stations and removable
 	  drive bays such as the IBM Ultrabay and the Dell Module Bay.
@@ -202,7 +201,7 @@ config ACPI_PROCESSOR
 	  the module will be called processor.
 config ACPI_IPMI
 	tristate "IPMI"
-	depends on EXPERIMENTAL && IPMI_SI && IPMI_HANDLER
+	depends on IPMI_SI && IPMI_HANDLER
 	default n
 	help
 	  This driver enables the ACPI to access the BMC controller. And it
@@ -214,14 +213,13 @@ config ACPI_IPMI
 
 config ACPI_HOTPLUG_CPU
 	bool
-	depends on EXPERIMENTAL && ACPI_PROCESSOR && HOTPLUG_CPU
+	depends on ACPI_PROCESSOR && HOTPLUG_CPU
 	select ACPI_CONTAINER
 	default y
 
 config ACPI_PROCESSOR_AGGREGATOR
 	tristate "Processor Aggregator"
 	depends on ACPI_PROCESSOR
-	depends on EXPERIMENTAL
 	depends on X86
 	help
 	  ACPI 4.0 defines processor Aggregator, which enables OS to perform
@@ -337,8 +335,7 @@ config X86_PM_TIMER
 	  systems require this timer. 
 
 config ACPI_CONTAINER
-	bool "Container and Module Devices (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Container and Module Devices"
 	default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
 	help
 	  This driver supports ACPI Container and Module devices (IDs

drivers/amba/tegra-ahb.c

@@ -20,6 +20,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -257,9 +258,9 @@ static int tegra_ahb_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res)
 		return -ENODEV;
-	ahb->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ahb->regs)
-		return -EBUSY;
+	ahb->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ahb->regs))
+		return PTR_ERR(ahb->regs);
 
 	ahb->dev = &pdev->dev;
 	platform_set_drvdata(pdev, ahb);

drivers/ata/Kconfig

@@ -163,7 +163,7 @@ config SATA_QSTOR
 
 config SATA_SX4
 	tristate "Promise SATA SX4 support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for Promise Serial ATA SX4.
 
@@ -390,7 +390,7 @@ config PATA_CS5530
 
 config PATA_CS5535
 	tristate "CS5535 PATA support (Experimental)"
-	depends on PCI && X86 && !X86_64 && EXPERIMENTAL
+	depends on PCI && X86 && !X86_64
 	help
 	  This option enables support for the NatSemi/AMD CS5535
 	  companion chip used with the Geode processor family.
@@ -408,7 +408,7 @@ config PATA_CS5536
 
 config PATA_CYPRESS
 	tristate "Cypress CY82C693 PATA support (Very Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the Cypress/Contaq CY82C693
 	  chipset found in some Alpha systems
@@ -496,7 +496,7 @@ config PATA_IMX
 
 config PATA_IT8213
 	tristate "IT8213 PATA support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the ITE 821 PATA
           controllers via the new ATA layer.
@@ -589,7 +589,7 @@ config PATA_OLDPIIX
 
 config PATA_OPTIDMA
 	tristate "OPTI FireStar PATA support (Very Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables DMA/PIO support for the later OPTi
 	  controllers found on some old motherboards and in some
@@ -616,7 +616,7 @@ config PATA_PDC_OLD
 
 config PATA_RADISYS
 	tristate "RADISYS 82600 PATA support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the RADISYS 82600
 	  PATA controllers via the new ATA layer
@@ -687,7 +687,7 @@ config PATA_SIS
 
 config PATA_TOSHIBA
 	tristate "Toshiba Piccolo support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  Support for the Toshiba Piccolo controllers. Currently only the
 	  primary channel is supported by this driver.
@@ -738,7 +738,7 @@ comment "PIO-only SFF controllers"
 
 config PATA_AT32
 	tristate "Atmel AVR32 PATA support (Experimental)"
-	depends on AVR32 && PLATFORM_AT32AP && EXPERIMENTAL
+	depends on AVR32 && PLATFORM_AT32AP
 	help
 	  This option enables support for the IDE devices on the
 	  Atmel AT32AP platform.
@@ -755,7 +755,7 @@ config PATA_AT91
 
 config PATA_CMD640_PCI
 	tristate "CMD640 PCI PATA support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the CMD640 PCI IDE
 	  interface chip. Only the primary channel is currently
@@ -801,7 +801,7 @@ config PATA_NS87410
 
 config PATA_OPTI
 	tristate "OPTI621/6215 PATA support (Very Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables full PIO support for the early Opti ATA
 	  controllers found on some old motherboards.
@@ -881,7 +881,7 @@ config PATA_SAMSUNG_CF
 
 config PATA_WINBOND_VLB
 	tristate "Winbond W83759A VLB PATA support (Experimental)"
-	depends on ISA && EXPERIMENTAL
+	depends on ISA
 	select PATA_LEGACY
 	help
 	  Support for the Winbond W83759A controller on Vesa Local Bus
@@ -909,7 +909,7 @@ config ATA_GENERIC
 
 config PATA_LEGACY
 	tristate "Legacy ISA PATA support (Experimental)"
-	depends on (ISA || PCI) && EXPERIMENTAL
+	depends on (ISA || PCI)
 	help
 	  This option enables support for ISA/VLB/PCI bus legacy PATA
 	  ports and allows them to be accessed via the new ATA layer.

drivers/ata/pata_ep93xx.c

@@ -31,6 +31,7 @@
  *   Copyright (C) 2006 Tower Technologies
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -937,9 +938,9 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
 		goto err_rel_gpio;
 	}
 
-	ide_base = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (!ide_base) {
-		err = -ENXIO;
+	ide_base = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(ide_base)) {
+		err = PTR_ERR(ide_base);
 		goto err_rel_gpio;
 	}
 

drivers/base/Kconfig

@@ -145,6 +145,17 @@ config EXTRA_FIRMWARE_DIR
 	  this option you can point it elsewhere, such as /lib/firmware/ or
 	  some other directory containing the firmware files.
 
+config FW_LOADER_USER_HELPER
+	bool "Fallback user-helper invocation for firmware loading"
+	depends on FW_LOADER
+	default y
+	help
+	  This option enables / disables the invocation of user-helper
+	  (e.g. udev) for loading firmware files as a fallback after the
+	  direct file loading in kernel fails.  The user-mode helper is
+	  no longer required unless you have a special firmware file that
+	  resides in a non-standard path.
+
 config DEBUG_DRIVER
 	bool "Driver Core verbose debug messages"
 	depends on DEBUG_KERNEL

drivers/base/bus.c

@@ -290,7 +290,7 @@ int bus_for_each_dev(struct bus_type *bus, struct device *start,
 	struct device *dev;
 	int error = 0;
 
-	if (!bus)
+	if (!bus || !bus->p)
 		return -EINVAL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
@@ -324,7 +324,7 @@ struct device *bus_find_device(struct bus_type *bus,
 	struct klist_iter i;
 	struct device *dev;
 
-	if (!bus)
+	if (!bus || !bus->p)
 		return NULL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
@@ -700,12 +700,12 @@ int bus_add_driver(struct device_driver *drv)
 	if (error)
 		goto out_unregister;
 
+	klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
 	if (drv->bus->p->drivers_autoprobe) {
 		error = driver_attach(drv);
 		if (error)
 			goto out_unregister;
 	}
-	klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
 	module_add_driver(drv->owner, drv);
 
 	error = driver_create_file(drv, &driver_attr_uevent);

drivers/base/class.c

@@ -420,8 +420,8 @@ EXPORT_SYMBOL_GPL(class_for_each_device);
  * code.  There's no locking restriction.
  */
 struct device *class_find_device(struct class *class, struct device *start,
-				 void *data,
-				 int (*match)(struct device *, void *))
+				 const void *data,
+				 int (*match)(struct device *, const void *))
 {
 	struct class_dev_iter iter;
 	struct device *dev;

drivers/base/core.c

@@ -1617,9 +1617,9 @@ struct device *device_create(struct class *class, struct device *parent,
 }
 EXPORT_SYMBOL_GPL(device_create);
 
-static int __match_devt(struct device *dev, void *data)
+static int __match_devt(struct device *dev, const void *data)
 {
-	dev_t *devt = data;
+	const dev_t *devt = data;
 
 	return dev->devt == *devt;
 }
@@ -1685,8 +1685,6 @@ EXPORT_SYMBOL_GPL(device_destroy);
  */
 int device_rename(struct device *dev, const char *new_name)
 {
-	char *old_class_name = NULL;
-	char *new_class_name = NULL;
 	char *old_device_name = NULL;
 	int error;
 
@@ -1717,8 +1715,6 @@ int device_rename(struct device *dev, const char *new_name)
 out:
 	put_device(dev);
 
-	kfree(new_class_name);
-	kfree(old_class_name);
 	kfree(old_device_name);
 
 	return error;

drivers/base/dd.c

@@ -173,6 +173,8 @@ static int deferred_probe_initcall(void)
 
 	driver_deferred_probe_enable = true;
 	driver_deferred_probe_trigger();
+	/* Sort as many dependencies as possible before exiting initcalls */
+	flush_workqueue(deferred_wq);
 	return 0;
 }
 late_initcall(deferred_probe_initcall);

drivers/base/dma-buf.c

@@ -134,15 +134,14 @@ EXPORT_SYMBOL_GPL(dma_buf_export);
  */
 int dma_buf_fd(struct dma_buf *dmabuf, int flags)
 {
-	int error, fd;
+	int fd;
 
 	if (!dmabuf || !dmabuf->file)
 		return -EINVAL;
 
-	error = get_unused_fd_flags(flags);
-	if (error < 0)
-		return error;
-	fd = error;
+	fd = get_unused_fd_flags(flags);
+	if (fd < 0)
+		return fd;
 
 	fd_install(fd, dmabuf->file);
 

drivers/base/firmware_class.c

@@ -88,11 +88,6 @@ enum {
 	FW_STATUS_ABORT,
 };
 
-enum fw_buf_fmt {
-	VMALLOC_BUF,	/* used in direct loading */
-	PAGE_BUF,	/* used in loading via userspace */
-};
-
 static int loading_timeout = 60;	/* In seconds */
 
 static inline long firmware_loading_timeout(void)
@@ -128,12 +123,14 @@ struct firmware_buf {
 	struct completion completion;
 	struct firmware_cache *fwc;
 	unsigned long status;
-	enum fw_buf_fmt fmt;
 	void *data;
 	size_t size;
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	bool is_paged_buf;
 	struct page **pages;
 	int nr_pages;
 	int page_array_size;
+#endif
 	char fw_id[];
 };
 
@@ -142,14 +139,6 @@ struct fw_cache_entry {
 	char name[];
 };
 
-struct firmware_priv {
-	struct delayed_work timeout_work;
-	bool nowait;
-	struct device dev;
-	struct firmware_buf *buf;
-	struct firmware *fw;
-};
-
 struct fw_name_devm {
 	unsigned long magic;
 	char name[];
@@ -182,7 +171,6 @@ static struct firmware_buf *__allocate_fw_buf(const char *fw_name,
 	strcpy(buf->fw_id, fw_name);
 	buf->fwc = fwc;
 	init_completion(&buf->completion);
-	buf->fmt = VMALLOC_BUF;
 
 	pr_debug("%s: fw-%s buf=%p\n", __func__, fw_name, buf);
 
@@ -240,7 +228,6 @@ static void __fw_free_buf(struct kref *ref)
 {
 	struct firmware_buf *buf = to_fwbuf(ref);
 	struct firmware_cache *fwc = buf->fwc;
-	int i;
 
 	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
 		 __func__, buf->fw_id, buf, buf->data,
@@ -249,13 +236,15 @@ static void __fw_free_buf(struct kref *ref)
 	list_del(&buf->list);
 	spin_unlock(&fwc->lock);
 
-
-	if (buf->fmt == PAGE_BUF) {
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	if (buf->is_paged_buf) {
+		int i;
 		vunmap(buf->data);
 		for (i = 0; i < buf->nr_pages; i++)
 			__free_page(buf->pages[i]);
 		kfree(buf->pages);
 	} else
+#endif
 		vfree(buf->data);
 	kfree(buf);
 }
@@ -319,7 +308,8 @@ static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf
 	return true;
 }
 
-static bool fw_get_filesystem_firmware(struct firmware_buf *buf)
+static bool fw_get_filesystem_firmware(struct device *device,
+				       struct firmware_buf *buf)
 {
 	int i;
 	bool success = false;
@@ -343,9 +333,114 @@ static bool fw_get_filesystem_firmware(struct firmware_buf *buf)
 			break;
 	}
 	__putname(path);
+
+	if (success) {
+		dev_dbg(device, "firmware: direct-loading firmware %s\n",
+			buf->fw_id);
+		mutex_lock(&fw_lock);
+		set_bit(FW_STATUS_DONE, &buf->status);
+		complete_all(&buf->completion);
+		mutex_unlock(&fw_lock);
+	}
+
 	return success;
 }
 
+/* firmware holds the ownership of pages */
+static void firmware_free_data(const struct firmware *fw)
+{
+	/* Loaded directly? */
+	if (!fw->priv) {
+		vfree(fw->data);
+		return;
+	}
+	fw_free_buf(fw->priv);
+}
+
+/* store the pages buffer info firmware from buf */
+static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw)
+{
+	fw->priv = buf;
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	fw->pages = buf->pages;
+#endif
+	fw->size = buf->size;
+	fw->data = buf->data;
+
+	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
+		 __func__, buf->fw_id, buf, buf->data,
+		 (unsigned int)buf->size);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static void fw_name_devm_release(struct device *dev, void *res)
+{
+	struct fw_name_devm *fwn = res;
+
+	if (fwn->magic == (unsigned long)&fw_cache)
+		pr_debug("%s: fw_name-%s devm-%p released\n",
+				__func__, fwn->name, res);
+}
+
+static int fw_devm_match(struct device *dev, void *res,
+		void *match_data)
+{
+	struct fw_name_devm *fwn = res;
+
+	return (fwn->magic == (unsigned long)&fw_cache) &&
+		!strcmp(fwn->name, match_data);
+}
+
+static struct fw_name_devm *fw_find_devm_name(struct device *dev,
+		const char *name)
+{
+	struct fw_name_devm *fwn;
+
+	fwn = devres_find(dev, fw_name_devm_release,
+			  fw_devm_match, (void *)name);
+	return fwn;
+}
+
+/* add firmware name into devres list */
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+	struct fw_name_devm *fwn;
+
+	fwn = fw_find_devm_name(dev, name);
+	if (fwn)
+		return 1;
+
+	fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
+			   strlen(name) + 1, GFP_KERNEL);
+	if (!fwn)
+		return -ENOMEM;
+
+	fwn->magic = (unsigned long)&fw_cache;
+	strcpy(fwn->name, name);
+	devres_add(dev, fwn);
+
+	return 0;
+}
+#else
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+	return 0;
+}
+#endif
+
+
+/*
+ * user-mode helper code
+ */
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+struct firmware_priv {
+	struct delayed_work timeout_work;
+	bool nowait;
+	struct device dev;
+	struct firmware_buf *buf;
+	struct firmware *fw;
+};
+
 static struct firmware_priv *to_firmware_priv(struct device *dev)
 {
 	return container_of(dev, struct firmware_priv, dev);
@@ -359,6 +454,9 @@ static void fw_load_abort(struct firmware_priv *fw_priv)
 	complete_all(&buf->completion);
 }
 
+#define is_fw_load_aborted(buf)	\
+	test_bit(FW_STATUS_ABORT, &(buf)->status)
+
 static ssize_t firmware_timeout_show(struct class *class,
 				     struct class_attribute *attr,
 				     char *buf)
@@ -435,17 +533,6 @@ static ssize_t firmware_loading_show(struct device *dev,
 	return sprintf(buf, "%d\n", loading);
 }
 
-/* firmware holds the ownership of pages */
-static void firmware_free_data(const struct firmware *fw)
-{
-	/* Loaded directly? */
-	if (!fw->priv) {
-		vfree(fw->data);
-		return;
-	}
-	fw_free_buf(fw->priv);
-}
-
 /* Some architectures don't have PAGE_KERNEL_RO */
 #ifndef PAGE_KERNEL_RO
 #define PAGE_KERNEL_RO PAGE_KERNEL
@@ -454,7 +541,7 @@ static void firmware_free_data(const struct firmware *fw)
 /* one pages buffer should be mapped/unmapped only once */
 static int fw_map_pages_buf(struct firmware_buf *buf)
 {
-	if (buf->fmt != PAGE_BUF)
+	if (!buf->is_paged_buf)
 		return 0;
 
 	if (buf->data)
@@ -727,171 +814,16 @@ exit:
 	return fw_priv;
 }
 
-/* store the pages buffer info firmware from buf */
-static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw)
-{
-	fw->priv = buf;
-	fw->pages = buf->pages;
-	fw->size = buf->size;
-	fw->data = buf->data;
-
-	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
-		 __func__, buf->fw_id, buf, buf->data,
-		 (unsigned int)buf->size);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static void fw_name_devm_release(struct device *dev, void *res)
-{
-	struct fw_name_devm *fwn = res;
-
-	if (fwn->magic == (unsigned long)&fw_cache)
-		pr_debug("%s: fw_name-%s devm-%p released\n",
-				__func__, fwn->name, res);
-}
-
-static int fw_devm_match(struct device *dev, void *res,
-		void *match_data)
-{
-	struct fw_name_devm *fwn = res;
-
-	return (fwn->magic == (unsigned long)&fw_cache) &&
-		!strcmp(fwn->name, match_data);
-}
-
-static struct fw_name_devm *fw_find_devm_name(struct device *dev,
-		const char *name)
-{
-	struct fw_name_devm *fwn;
-
-	fwn = devres_find(dev, fw_name_devm_release,
-			  fw_devm_match, (void *)name);
-	return fwn;
-}
-
-/* add firmware name into devres list */
-static int fw_add_devm_name(struct device *dev, const char *name)
-{
-	struct fw_name_devm *fwn;
-
-	fwn = fw_find_devm_name(dev, name);
-	if (fwn)
-		return 1;
-
-	fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
-			   strlen(name) + 1, GFP_KERNEL);
-	if (!fwn)
-		return -ENOMEM;
-
-	fwn->magic = (unsigned long)&fw_cache;
-	strcpy(fwn->name, name);
-	devres_add(dev, fwn);
-
-	return 0;
-}
-#else
-static int fw_add_devm_name(struct device *dev, const char *name)
-{
-	return 0;
-}
-#endif
-
-static void _request_firmware_cleanup(const struct firmware **firmware_p)
-{
-	release_firmware(*firmware_p);
-	*firmware_p = NULL;
-}
-
-static struct firmware_priv *
-_request_firmware_prepare(const struct firmware **firmware_p, const char *name,
-			  struct device *device, bool uevent, bool nowait)
-{
-	struct firmware *firmware;
-	struct firmware_priv *fw_priv = NULL;
-	struct firmware_buf *buf;
-	int ret;
-
-	if (!firmware_p)
-		return ERR_PTR(-EINVAL);
-
-	*firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
-	if (!firmware) {
-		dev_err(device, "%s: kmalloc(struct firmware) failed\n",
-			__func__);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	if (fw_get_builtin_firmware(firmware, name)) {
-		dev_dbg(device, "firmware: using built-in firmware %s\n", name);
-		return NULL;
-	}
-
-	ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf);
-	if (!ret)
-		fw_priv = fw_create_instance(firmware, name, device,
-				uevent, nowait);
-
-	if (IS_ERR(fw_priv) || ret < 0) {
-		kfree(firmware);
-		*firmware_p = NULL;
-		return ERR_PTR(-ENOMEM);
-	} else if (fw_priv) {
-		fw_priv->buf = buf;
-
-		/*
-		 * bind with 'buf' now to avoid warning in failure path
-		 * of requesting firmware.
-		 */
-		firmware->priv = buf;
-		return fw_priv;
-	}
-
-	/* share the cached buf, which is inprogessing or completed */
- check_status:
-	mutex_lock(&fw_lock);
-	if (test_bit(FW_STATUS_ABORT, &buf->status)) {
-		fw_priv = ERR_PTR(-ENOENT);
-		firmware->priv = buf;
-		_request_firmware_cleanup(firmware_p);
-		goto exit;
-	} else if (test_bit(FW_STATUS_DONE, &buf->status)) {
-		fw_priv = NULL;
-		fw_set_page_data(buf, firmware);
-		goto exit;
-	}
-	mutex_unlock(&fw_lock);
-	wait_for_completion(&buf->completion);
-	goto check_status;
-
-exit:
-	mutex_unlock(&fw_lock);
-	return fw_priv;
-}
-
+/* load a firmware via user helper */
 static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
 				  long timeout)
 {
 	int retval = 0;
 	struct device *f_dev = &fw_priv->dev;
 	struct firmware_buf *buf = fw_priv->buf;
-	struct firmware_cache *fwc = &fw_cache;
-	int direct_load = 0;
-
-	/* try direct loading from fs first */
-	if (fw_get_filesystem_firmware(buf)) {
-		dev_dbg(f_dev->parent, "firmware: direct-loading"
-			" firmware %s\n", buf->fw_id);
-
-		mutex_lock(&fw_lock);
-		set_bit(FW_STATUS_DONE, &buf->status);
-		mutex_unlock(&fw_lock);
-		complete_all(&buf->completion);
-		direct_load = 1;
-		goto handle_fw;
-	}
 
 	/* fall back on userspace loading */
-	buf->fmt = PAGE_BUF;
+	buf->is_paged_buf = true;
 
 	dev_set_uevent_suppress(f_dev, true);
 
@@ -929,47 +861,196 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
 
 	cancel_delayed_work_sync(&fw_priv->timeout_work);
 
-handle_fw:
+	fw_priv->buf = NULL;
+
+	device_remove_file(f_dev, &dev_attr_loading);
+err_del_bin_attr:
+	device_remove_bin_file(f_dev, &firmware_attr_data);
+err_del_dev:
+	device_del(f_dev);
+err_put_dev:
+	put_device(f_dev);
+	return retval;
+}
+
+static int fw_load_from_user_helper(struct firmware *firmware,
+				    const char *name, struct device *device,
+				    bool uevent, bool nowait, long timeout)
+{
+	struct firmware_priv *fw_priv;
+
+	fw_priv = fw_create_instance(firmware, name, device, uevent, nowait);
+	if (IS_ERR(fw_priv))
+		return PTR_ERR(fw_priv);
+
+	fw_priv->buf = firmware->priv;
+	return _request_firmware_load(fw_priv, uevent, timeout);
+}
+#else /* CONFIG_FW_LOADER_USER_HELPER */
+static inline int
+fw_load_from_user_helper(struct firmware *firmware, const char *name,
+			 struct device *device, bool uevent, bool nowait,
+			 long timeout)
+{
+	return -ENOENT;
+}
+
+/* No abort during direct loading */
+#define is_fw_load_aborted(buf) false
+
+#endif /* CONFIG_FW_LOADER_USER_HELPER */
+
+
+/* wait until the shared firmware_buf becomes ready (or error) */
+static int sync_cached_firmware_buf(struct firmware_buf *buf)
+{
+	int ret = 0;
+
+	mutex_lock(&fw_lock);
+	while (!test_bit(FW_STATUS_DONE, &buf->status)) {
+		if (is_fw_load_aborted(buf)) {
+			ret = -ENOENT;
+			break;
+		}
+		mutex_unlock(&fw_lock);
+		wait_for_completion(&buf->completion);
+		mutex_lock(&fw_lock);
+	}
+	mutex_unlock(&fw_lock);
+	return ret;
+}
+
+/* prepare firmware and firmware_buf structs;
+ * return 0 if a firmware is already assigned, 1 if need to load one,
+ * or a negative error code
+ */
+static int
+_request_firmware_prepare(struct firmware **firmware_p, const char *name,
+			  struct device *device)
+{
+	struct firmware *firmware;
+	struct firmware_buf *buf;
+	int ret;
+
+	*firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
+	if (!firmware) {
+		dev_err(device, "%s: kmalloc(struct firmware) failed\n",
+			__func__);
+		return -ENOMEM;
+	}
+
+	if (fw_get_builtin_firmware(firmware, name)) {
+		dev_dbg(device, "firmware: using built-in firmware %s\n", name);
+		return 0; /* assigned */
+	}
+
+	ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf);
+
+	/*
+	 * bind with 'buf' now to avoid warning in failure path
+	 * of requesting firmware.
+	 */
+	firmware->priv = buf;
+
+	if (ret > 0) {
+		ret = sync_cached_firmware_buf(buf);
+		if (!ret) {
+			fw_set_page_data(buf, firmware);
+			return 0; /* assigned */
+		}
+	}
+
+	if (ret < 0)
+		return ret;
+	return 1; /* need to load */
+}
+
+static int assign_firmware_buf(struct firmware *fw, struct device *device)
+{
+	struct firmware_buf *buf = fw->priv;
+
 	mutex_lock(&fw_lock);
-	if (!buf->size || test_bit(FW_STATUS_ABORT, &buf->status))
-		retval = -ENOENT;
+	if (!buf->size || is_fw_load_aborted(buf)) {
+		mutex_unlock(&fw_lock);
+		return -ENOENT;
+	}
 
 	/*
 	 * add firmware name into devres list so that we can auto cache
 	 * and uncache firmware for device.
 	 *
-	 * f_dev->parent may has been deleted already, but the problem
+	 * device may has been deleted already, but the problem
 	 * should be fixed in devres or driver core.
 	 */
-	if (!retval && f_dev->parent)
-		fw_add_devm_name(f_dev->parent, buf->fw_id);
+	if (device)
+		fw_add_devm_name(device, buf->fw_id);
 
 	/*
 	 * After caching firmware image is started, let it piggyback
 	 * on request firmware.
 	 */
-	if (!retval && fwc->state == FW_LOADER_START_CACHE) {
+	if (buf->fwc->state == FW_LOADER_START_CACHE) {
 		if (fw_cache_piggyback_on_request(buf->fw_id))
 			kref_get(&buf->ref);
 	}
 
 	/* pass the pages buffer to driver at the last minute */
-	fw_set_page_data(buf, fw_priv->fw);
-
-	fw_priv->buf = NULL;
+	fw_set_page_data(buf, fw);
 	mutex_unlock(&fw_lock);
+	return 0;
+}
 
-	if (direct_load)
-		goto err_put_dev;
+/* called from request_firmware() and request_firmware_work_func() */
+static int
+_request_firmware(const struct firmware **firmware_p, const char *name,
+		  struct device *device, bool uevent, bool nowait)
+{
+	struct firmware *fw;
+	long timeout;
+	int ret;
 
-	device_remove_file(f_dev, &dev_attr_loading);
-err_del_bin_attr:
-	device_remove_bin_file(f_dev, &firmware_attr_data);
-err_del_dev:
-	device_del(f_dev);
-err_put_dev:
-	put_device(f_dev);
-	return retval;
+	if (!firmware_p)
+		return -EINVAL;
+
+	ret = _request_firmware_prepare(&fw, name, device);
+	if (ret <= 0) /* error or already assigned */
+		goto out;
+
+	ret = 0;
+	timeout = firmware_loading_timeout();
+	if (nowait) {
+		timeout = usermodehelper_read_lock_wait(timeout);
+		if (!timeout) {
+			dev_dbg(device, "firmware: %s loading timed out\n",
+				name);
+			ret = -EBUSY;
+			goto out;
+		}
+	} else {
+		ret = usermodehelper_read_trylock();
+		if (WARN_ON(ret)) {
+			dev_err(device, "firmware: %s will not be loaded\n",
+				name);
+			goto out;
+		}
+	}
+
+	if (!fw_get_filesystem_firmware(device, fw->priv))
+		ret = fw_load_from_user_helper(fw, name, device,
+					       uevent, nowait, timeout);
+	if (!ret)
+		ret = assign_firmware_buf(fw, device);
+
+	usermodehelper_read_unlock();
+
+ out:
+	if (ret < 0) {
+		release_firmware(fw);
+		fw = NULL;
+	}
+
+	*firmware_p = fw;
+	return ret;
 }
 
 /**
@@ -996,26 +1077,7 @@ int
 request_firmware(const struct firmware **firmware_p, const char *name,
                  struct device *device)
 {
-	struct firmware_priv *fw_priv;
-	int ret;
-
-	fw_priv = _request_firmware_prepare(firmware_p, name, device, true,
-					    false);
-	if (IS_ERR_OR_NULL(fw_priv))
-		return PTR_RET(fw_priv);
-
-	ret = usermodehelper_read_trylock();
-	if (WARN_ON(ret)) {
-		dev_err(device, "firmware: %s will not be loaded\n", name);
-	} else {
-		ret = _request_firmware_load(fw_priv, true,
-					firmware_loading_timeout());
-		usermodehelper_read_unlock();
-	}
-	if (ret)
-		_request_firmware_cleanup(firmware_p);
-
-	return ret;
+	return _request_firmware(firmware_p, name, device, true, false);
 }
 
 /**
@@ -1046,33 +1108,13 @@ static void request_firmware_work_func(struct work_struct *work)
 {
 	struct firmware_work *fw_work;
 	const struct firmware *fw;
-	struct firmware_priv *fw_priv;
-	long timeout;
-	int ret;
 
 	fw_work = container_of(work, struct firmware_work, work);
-	fw_priv = _request_firmware_prepare(&fw, fw_work->name, fw_work->device,
-			fw_work->uevent, true);
-	if (IS_ERR_OR_NULL(fw_priv)) {
-		ret = PTR_RET(fw_priv);
-		goto out;
-	}
-
-	timeout = usermodehelper_read_lock_wait(firmware_loading_timeout());
-	if (timeout) {
-		ret = _request_firmware_load(fw_priv, fw_work->uevent, timeout);
-		usermodehelper_read_unlock();
-	} else {
-		dev_dbg(fw_work->device, "firmware: %s loading timed out\n",
-			fw_work->name);
-		ret = -EAGAIN;
-	}
-	if (ret)
-		_request_firmware_cleanup(&fw);
 
- out:
+	_request_firmware(&fw, fw_work->name, fw_work->device,
+			  fw_work->uevent, true);
 	fw_work->cont(fw, fw_work->context);
-	put_device(fw_work->device);
+	put_device(fw_work->device); /* taken in request_firmware_nowait() */
 
 	module_put(fw_work->module);
 	kfree(fw_work);
@@ -1474,7 +1516,11 @@ static void __init fw_cache_init(void)
 static int __init firmware_class_init(void)
 {
 	fw_cache_init();
+#ifdef CONFIG_FW_LOADER_USER_HELPER
 	return class_register(&firmware_class);
+#else
+	return 0;
+#endif
 }
 
 static void __exit firmware_class_exit(void)
@@ -1483,7 +1529,9 @@ static void __exit firmware_class_exit(void)
 	unregister_syscore_ops(&fw_syscore_ops);
 	unregister_pm_notifier(&fw_cache.pm_notify);
 #endif
+#ifdef CONFIG_FW_LOADER_USER_HELPER
 	class_unregister(&firmware_class);
+#endif
 }
 
 fs_initcall(firmware_class_init);

drivers/base/memory.c

@@ -494,8 +494,8 @@ store_hard_offline_page(struct device *dev,
 	return ret ? ret : count;
 }
 
-static DEVICE_ATTR(soft_offline_page, 0644, NULL, store_soft_offline_page);
-static DEVICE_ATTR(hard_offline_page, 0644, NULL, store_hard_offline_page);
+static DEVICE_ATTR(soft_offline_page, S_IWUSR, NULL, store_soft_offline_page);
+static DEVICE_ATTR(hard_offline_page, S_IWUSR, NULL, store_hard_offline_page);
 
 static __init int memory_fail_init(void)
 {

drivers/block/paride/Kconfig

@@ -205,8 +205,8 @@ config PARIDE_EPAT
 	  support.
 
 config PARIDE_EPATC8
-	bool "Support c7/c8 chips (EXPERIMENTAL)"
-	depends on PARIDE_EPAT && EXPERIMENTAL
+	bool "Support c7/c8 chips"
+	depends on PARIDE_EPAT
 	help
 	  This option enables support for the newer Shuttle EP1284 (aka c7 and
 	  c8) chip. You need this if you are using any recent Imation SuperDisk

drivers/char/hw_random/exynos-rng.c

@@ -104,6 +104,7 @@ static int exynos_read(struct hwrng *rng, void *buf,
 static int exynos_rng_probe(struct platform_device *pdev)
 {
 	struct exynos_rng *exynos_rng;
+	struct resource *res;
 
 	exynos_rng = devm_kzalloc(&pdev->dev, sizeof(struct exynos_rng),
 					GFP_KERNEL);
@@ -120,10 +121,10 @@ static int exynos_rng_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	exynos_rng->mem = devm_request_and_ioremap(&pdev->dev,
-			platform_get_resource(pdev, IORESOURCE_MEM, 0));
-	if (!exynos_rng->mem)
-		return -EBUSY;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	exynos_rng->mem = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(exynos_rng->mem))
+		return PTR_ERR(exynos_rng->mem);
 
 	platform_set_drvdata(pdev, exynos_rng);
 

drivers/char/hw_random/omap-rng.c

@@ -124,9 +124,9 @@ static int omap_rng_probe(struct platform_device *pdev)
 		goto err_ioremap;
 	}
 
-	priv->base = devm_request_and_ioremap(&pdev->dev, priv->mem_res);
-	if (!priv->base) {
-		ret = -ENOMEM;
+	priv->base = devm_ioremap_resource(&pdev->dev, priv->mem_res);
+	if (IS_ERR(priv->base)) {
+		ret = PTR_ERR(priv->base);
 		goto err_ioremap;
 	}
 	dev_set_drvdata(&pdev->dev, priv);

drivers/char/hw_random/tx4939-rng.c

@@ -7,6 +7,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -115,9 +116,9 @@ static int __init tx4939_rng_probe(struct platform_device *dev)
 	rngdev = devm_kzalloc(&dev->dev, sizeof(*rngdev), GFP_KERNEL);
 	if (!rngdev)
 		return -ENOMEM;
-	rngdev->base = devm_request_and_ioremap(&dev->dev, r);
-	if (!rngdev->base)
-		return -EBUSY;
+	rngdev->base = devm_ioremap_resource(&dev->dev, r);
+	if (IS_ERR(rngdev->base))
+		return PTR_ERR(rngdev->base);
 
 	rngdev->rng.name = dev_name(&dev->dev);
 	rngdev->rng.data_present = tx4939_rng_data_present;

drivers/cpufreq/Kconfig.arm

@@ -21,8 +21,8 @@ config ARM_S3C2416_CPUFREQ
 	  If in doubt, say N.
 
 config ARM_S3C2416_CPUFREQ_VCORESCALE
-	bool "Allow voltage scaling for S3C2416 arm core (EXPERIMENTAL)"
-	depends on ARM_S3C2416_CPUFREQ && REGULATOR && EXPERIMENTAL
+	bool "Allow voltage scaling for S3C2416 arm core"
+	depends on ARM_S3C2416_CPUFREQ && REGULATOR
 	help
 	  Enable CPU voltage scaling when entering the dvs mode.
 	  It uses information gathered through existing hardware and

drivers/cpufreq/Kconfig.x86

@@ -187,7 +187,7 @@ config X86_SPEEDSTEP_ICH
 config X86_SPEEDSTEP_SMI
 	tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
 	select CPU_FREQ_TABLE
-	depends on X86_32 && EXPERIMENTAL
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for certain mobile Intel Pentium III
 	  (Coppermine), all mobile Intel Pentium III-M (Tualatin)
@@ -219,7 +219,7 @@ config X86_P4_CLOCKMOD
 
 config X86_CPUFREQ_NFORCE2
 	tristate "nVidia nForce2 FSB changing"
-	depends on X86_32 && EXPERIMENTAL
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for FSB changing on nVidia nForce2
 	  platforms.
@@ -255,7 +255,7 @@ config X86_LONGHAUL
 config X86_E_POWERSAVER
 	tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)"
 	select CPU_FREQ_TABLE
-	depends on X86_32 && EXPERIMENTAL
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for VIA C7 processors.  However, this driver
 	  does not have any safeguards to prevent operating the CPU out of spec

drivers/dma/dw_dmac.c

@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -1489,9 +1490,9 @@ static int dw_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	regs = devm_request_and_ioremap(&pdev->dev, io);
-	if (!regs)
-		return -EBUSY;
+	regs = devm_ioremap_resource(&pdev->dev, io);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	dw_params = dma_read_byaddr(regs, DW_PARAMS);
 	autocfg = dw_params >> DW_PARAMS_EN & 0x1;

drivers/dma/imx-dma.c

@@ -14,6 +14,7 @@
  * http://www.opensource.org/licenses/gpl-license.html
  * http://www.gnu.org/copyleft/gpl.html
  */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/mm.h>
@@ -1010,9 +1011,9 @@ static int __init imxdma_probe(struct platform_device *pdev)
 	imxdma->devtype = pdev->id_entry->driver_data;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	imxdma->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!imxdma->base)
-		return -EADDRNOTAVAIL;
+	imxdma->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(imxdma->base))
+		return PTR_ERR(imxdma->base);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)

drivers/dma/mmp_pdma.c

@@ -5,6 +5,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -782,9 +783,9 @@ static int mmp_pdma_probe(struct platform_device *op)
 	if (!iores)
 		return -EINVAL;
 
-	pdev->base = devm_request_and_ioremap(pdev->dev, iores);
-	if (!pdev->base)
-		return -EADDRNOTAVAIL;
+	pdev->base = devm_ioremap_resource(pdev->dev, iores);
+	if (IS_ERR(pdev->base))
+		return PTR_ERR(pdev->base);
 
 	of_id = of_match_device(mmp_pdma_dt_ids, pdev->dev);
 	if (of_id)

drivers/dma/mmp_tdma.c

@@ -9,6 +9,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -547,9 +548,9 @@ static int mmp_tdma_probe(struct platform_device *pdev)
 	if (!iores)
 		return -EINVAL;
 
-	tdev->base = devm_request_and_ioremap(&pdev->dev, iores);
-	if (!tdev->base)
-		return -EADDRNOTAVAIL;
+	tdev->base = devm_ioremap_resource(&pdev->dev, iores);
+	if (IS_ERR(tdev->base))
+		return PTR_ERR(tdev->base);
 
 	INIT_LIST_HEAD(&tdev->device.channels);
 

drivers/dma/tegra20-apb-dma.c

@@ -21,6 +21,7 @@
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -1240,12 +1241,9 @@ static int tegra_dma_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	tdma->base_addr = devm_request_and_ioremap(&pdev->dev, res);
-	if (!tdma->base_addr) {
-		dev_err(&pdev->dev,
-			"Cannot request memregion/iomap dma address\n");
-		return -EADDRNOTAVAIL;
-	}
+	tdma->base_addr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(tdma->base_addr))
+		return PTR_ERR(tdma->base_addr);
 
 	tdma->dma_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(tdma->dma_clk)) {

drivers/edac/Kconfig

@@ -158,7 +158,7 @@ config EDAC_I3000
 
 config EDAC_I3200
 	tristate "Intel 3200"
-	depends on EDAC_MM_EDAC && PCI && X86 && EXPERIMENTAL
+	depends on EDAC_MM_EDAC && PCI && X86
 	help
 	  Support for error detection and correction on the Intel
 	  3200 and 3210 server chipsets.
@@ -224,7 +224,7 @@ config EDAC_I7300
 config EDAC_SBRIDGE
 	tristate "Intel Sandy-Bridge Integrated MC"
 	depends on EDAC_MM_EDAC && PCI && X86_64 && X86_MCE_INTEL
-	depends on PCI_MMCONFIG && EXPERIMENTAL
+	depends on PCI_MMCONFIG
 	help
 	  Support for error detection and correction the Intel
 	  Sandy Bridge Integrated Memory Controller.

drivers/gpio/Kconfig

@@ -66,7 +66,7 @@ config DEBUG_GPIO
 
 config GPIO_SYSFS
 	bool "/sys/class/gpio/... (sysfs interface)"
-	depends on SYSFS && EXPERIMENTAL
+	depends on SYSFS
 	help
 	  Say Y here to add a sysfs interface for GPIOs.
 

drivers/gpio/gpio-mvebu.c

@@ -33,6 +33,7 @@
  *   interrupts.
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/gpio.h>
 #include <linux/irq.h>
@@ -544,11 +545,9 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 	mvchip->chip.of_node = np;
 
 	spin_lock_init(&mvchip->lock);
-	mvchip->membase = devm_request_and_ioremap(&pdev->dev, res);
-	if (! mvchip->membase) {
-		dev_err(&pdev->dev, "Cannot ioremap\n");
-		return -ENOMEM;
-	}
+	mvchip->membase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(mvchip->membase))
+		return PTR_ERR(mvchip->membase);
 
 	/* The Armada XP has a second range of registers for the
 	 * per-CPU registers */
@@ -559,11 +558,10 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 			return -ENODEV;
 		}
 
-		mvchip->percpu_membase = devm_request_and_ioremap(&pdev->dev, res);
-		if (! mvchip->percpu_membase) {
-			dev_err(&pdev->dev, "Cannot ioremap\n");
-			return -ENOMEM;
-		}
+		mvchip->percpu_membase = devm_ioremap_resource(&pdev->dev,
+							       res);
+		if (IS_ERR(mvchip->percpu_membase)) 
+			return PTR_ERR(mvchip->percpu_membase);
 	}
 
 	/*

drivers/gpio/gpio-mxs.c

@@ -20,6 +20,7 @@
  * MA  02110-1301, USA.
  */
 
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -253,12 +254,14 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 			parent = of_get_parent(np);
 			base = of_iomap(parent, 0);
 			of_node_put(parent);
+			if (!base)
+				return -EADDRNOTAVAIL;
 		} else {
 			iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-			base = devm_request_and_ioremap(&pdev->dev, iores);
+			base = devm_ioremap_resource(&pdev->dev, iores);
+			if (IS_ERR(base))
+				return PTR_ERR(base);
 		}
-		if (!base)
-			return -EADDRNOTAVAIL;
 	}
 	port->base = base;
 

drivers/gpio/gpio-spear-spics.c

@@ -140,11 +140,9 @@ static int spics_gpio_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	spics->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!spics->base) {
-		dev_err(&pdev->dev, "request and ioremap fail\n");
-		return -ENOMEM;
-	}
+	spics->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(spics->base))
+		return PTR_ERR(spics->base);
 
 	if (of_property_read_u32(np, "st-spics,peripcfg-reg",
 				&spics->perip_cfg))

drivers/gpio/gpio-stp-xway.c

@@ -214,11 +214,10 @@ static int xway_stp_probe(struct platform_device *pdev)
 	if (!chip)
 		return -ENOMEM;
 
-	chip->virt = devm_request_and_ioremap(&pdev->dev, res);
-	if (!chip->virt) {
-		dev_err(&pdev->dev, "failed to remap STP memory\n");
-		return -ENOMEM;
-	}
+	chip->virt = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(chip->virt))
+		return PTR_ERR(chip->virt);
+	
 	chip->gc.dev = &pdev->dev;
 	chip->gc.label = "stp-xway";
 	chip->gc.direction_output = xway_stp_dir_out;

drivers/gpio/gpio-tegra.c

@@ -17,6 +17,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
@@ -450,11 +451,9 @@ static int tegra_gpio_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!regs) {
-		dev_err(&pdev->dev, "Couldn't ioremap regs\n");
-		return -ENODEV;
-	}
+	regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	for (i = 0; i < tegra_gpio_bank_count; i++) {
 		for (j = 0; j < 4; j++) {

drivers/gpio/gpiolib.c

@@ -806,7 +806,7 @@ fail_unlock:
 }
 EXPORT_SYMBOL_GPL(gpio_export);
 
-static int match_export(struct device *dev, void *data)
+static int match_export(struct device *dev, const void *data)
 {
 	return dev_get_drvdata(dev) == data;
 }

drivers/gpu/drm/ast/Kconfig

@@ -1,6 +1,6 @@
 config DRM_AST
 	tristate "AST server chips"
-	depends on DRM && PCI && EXPERIMENTAL
+	depends on DRM && PCI
 	select DRM_TTM
 	select FB_SYS_COPYAREA
 	select FB_SYS_FILLRECT

drivers/gpu/drm/cirrus/Kconfig

@@ -1,6 +1,6 @@
 config DRM_CIRRUS_QEMU
 	tristate "Cirrus driver for QEMU emulated device"
-	depends on DRM && PCI && EXPERIMENTAL
+	depends on DRM && PCI
 	select FB_SYS_FILLRECT
 	select FB_SYS_COPYAREA
 	select FB_SYS_IMAGEBLIT

drivers/gpu/drm/exynos/exynos_drm_fimc.c

@@ -1785,11 +1785,9 @@ static int fimc_probe(struct platform_device *pdev)
 
 	/* resource memory */
 	ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ctx->regs = devm_request_and_ioremap(dev, ctx->regs_res);
-	if (!ctx->regs) {
-		dev_err(dev, "failed to map registers.\n");
-		return -ENXIO;
-	}
+	ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
 
 	/* resource irq */
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -913,11 +913,9 @@ static int fimd_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	ctx->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ctx->regs) {
-		dev_err(dev, "failed to map registers\n");
-		return -ENXIO;
-	}
+	ctx->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {

drivers/gpu/drm/exynos/exynos_drm_g2d.c

@@ -1136,10 +1136,9 @@ static int g2d_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	g2d->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!g2d->regs) {
-		dev_err(dev, "failed to remap I/O memory\n");
-		ret = -ENXIO;
+	g2d->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(g2d->regs)) {
+		ret = PTR_ERR(g2d->regs);
 		goto err_put_clk;
 	}
 

drivers/gpu/drm/exynos/exynos_drm_gsc.c

@@ -1692,11 +1692,9 @@ static int gsc_probe(struct platform_device *pdev)
 
 	/* resource memory */
 	ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ctx->regs = devm_request_and_ioremap(dev, ctx->regs_res);
-	if (!ctx->regs) {
-		dev_err(dev, "failed to map registers.\n");
-		return -ENXIO;
-	}
+	ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
 
 	/* resource irq */
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);

drivers/gpu/drm/exynos/exynos_drm_rotator.c

@@ -656,11 +656,9 @@ static int rotator_probe(struct platform_device *pdev)
 				platform_get_device_id(pdev)->driver_data;
 
 	rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rot->regs = devm_request_and_ioremap(dev, rot->regs_res);
-	if (!rot->regs) {
-		dev_err(dev, "failed to map register\n");
-		return -ENXIO;
-	}
+	rot->regs = devm_ioremap_resource(dev, rot->regs_res);
+	if (IS_ERR(rot->regs))
+		return PTR_ERR(rot->regs);
 
 	rot->irq = platform_get_irq(pdev, 0);
 	if (rot->irq < 0) {

drivers/gpu/drm/exynos/exynos_hdmi.c

@@ -2501,11 +2501,9 @@ static int hdmi_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	hdata->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hdata->regs) {
-		DRM_ERROR("failed to map registers\n");
-		return -ENXIO;
-	}
+	hdata->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hdata->regs))
+		return PTR_ERR(hdata->regs);
 
 	ret = devm_gpio_request(&pdev->dev, hdata->hpd_gpio, "HPD");
 	if (ret) {

drivers/gpu/drm/gma500/Kconfig

@@ -1,6 +1,6 @@
 config DRM_GMA500
 	tristate "Intel GMA5/600 KMS Framebuffer"
-	depends on DRM && PCI && X86 && EXPERIMENTAL
+	depends on DRM && PCI && X86
 	select FB_CFB_COPYAREA
         select FB_CFB_FILLRECT
         select FB_CFB_IMAGEBLIT

drivers/gpu/drm/mgag200/Kconfig

@@ -1,6 +1,6 @@
 config DRM_MGAG200
 	tristate "Kernel modesetting driver for MGA G200 server engines"
-	depends on DRM && PCI && EXPERIMENTAL
+	depends on DRM && PCI
 	select FB_SYS_FILLRECT
 	select FB_SYS_COPYAREA
 	select FB_SYS_IMAGEBLIT

drivers/gpu/drm/tegra/dc.c

@@ -764,11 +764,9 @@ static int tegra_dc_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	dc->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!dc->regs) {
-		dev_err(&pdev->dev, "failed to remap registers\n");
-		return -ENXIO;
-	}
+	dc->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(dc->regs))
+		return PTR_ERR(dc->regs);
 
 	dc->irq = platform_get_irq(pdev, 0);
 	if (dc->irq < 0) {

drivers/gpu/drm/tegra/hdmi.c

@@ -1259,9 +1259,9 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 	if (!regs)
 		return -ENXIO;
 
-	hdmi->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!hdmi->regs)
-		return -EADDRNOTAVAIL;
+	hdmi->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(hdmi->regs))
+		return PTR_ERR(hdmi->regs);
 
 	err = platform_get_irq(pdev, 0);
 	if (err < 0)

drivers/gpu/drm/tegra/host1x.c

@@ -139,9 +139,9 @@ static int tegra_host1x_probe(struct platform_device *pdev)
 
 	host1x->irq = err;
 
-	host1x->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!host1x->regs) {
-		err = -EADDRNOTAVAIL;
+	host1x->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(host1x->regs)) {
+		err = PTR_ERR(host1x->regs);
 		goto err;
 	}
 

drivers/gpu/drm/udl/Kconfig

@@ -1,6 +1,6 @@
 config DRM_UDL
 	tristate "DisplayLink"
-	depends on DRM && EXPERIMENTAL
+	depends on DRM
 	depends on USB_ARCH_HAS_HCD
 	select DRM_USB
 	select FB_SYS_FILLRECT

drivers/i2c/Kconfig

@@ -89,7 +89,7 @@ source drivers/i2c/busses/Kconfig
 
 config I2C_STUB
 	tristate "I2C/SMBus Test Stub"
-	depends on EXPERIMENTAL && m
+	depends on m
 	default 'n'
 	help
 	  This module may be useful to developers of SMBus client drivers,

drivers/i2c/busses/Kconfig

@@ -22,7 +22,7 @@ config I2C_ALI1535
 
 config I2C_ALI1563
 	tristate "ALI 1563"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  If you say yes to this option, support will be included for the SMB
 	  Host controller on Acer Labs Inc. (ALI) M1563 South Bridges.  The SMB
@@ -56,7 +56,7 @@ config I2C_AMD756
 
 config I2C_AMD756_S4882
 	tristate "SMBus multiplexing on the Tyan S4882"
-	depends on I2C_AMD756 && X86 && EXPERIMENTAL
+	depends on I2C_AMD756 && X86
 	help
 	  Enabling this option will add specific SMBus support for the Tyan
 	  S4882 motherboard.  On this 4-CPU board, the SMBus is multiplexed
@@ -164,7 +164,7 @@ config I2C_NFORCE2
 
 config I2C_NFORCE2_S4985
 	tristate "SMBus multiplexing on the Tyan S4985"
-	depends on I2C_NFORCE2 && X86 && EXPERIMENTAL
+	depends on I2C_NFORCE2 && X86
 	help
 	  Enabling this option will add specific SMBus support for the Tyan
 	  S4985 motherboard.  On this 4-CPU board, the SMBus is multiplexed
@@ -215,7 +215,7 @@ config I2C_SIS96X
 
 config I2C_VIA
 	tristate "VIA VT82C586B"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	select I2C_ALGOBIT
 	help
 	  If you say yes to this option, support will be included for the VIA
@@ -267,7 +267,7 @@ comment "Mac SMBus host controller drivers"
 
 config I2C_HYDRA
 	tristate "CHRP Apple Hydra Mac I/O I2C interface"
-	depends on PCI && PPC_CHRP && EXPERIMENTAL
+	depends on PCI && PPC_CHRP
 	select I2C_ALGOBIT
 	help
 	  This supports the use of the I2C interface in the Apple Hydra Mac
@@ -293,7 +293,7 @@ comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 
 config I2C_AT91
 	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
-	depends on ARCH_AT91 && EXPERIMENTAL
+	depends on ARCH_AT91
 	help
 	  This supports the use of the I2C interface on Atmel AT91
 	  processors.
@@ -519,7 +519,6 @@ config I2C_NUC900
 
 config I2C_OCORES
 	tristate "OpenCores I2C Controller"
-	depends on EXPERIMENTAL
 	help
 	  If you say yes to this option, support will be included for the
 	  OpenCores I2C controller. For details see
@@ -712,7 +711,7 @@ config I2C_OCTEON
 
 config I2C_XILINX
 	tristate "Xilinx I2C Controller"
-	depends on EXPERIMENTAL && HAS_IOMEM
+	depends on HAS_IOMEM
 	help
 	  If you say yes to this option, support will be included for the
 	  Xilinx I2C controller.
@@ -803,7 +802,6 @@ config I2C_PARPORT_LIGHT
 
 config I2C_TAOS_EVM
 	tristate "TAOS evaluation module"
-	depends on EXPERIMENTAL
 	select SERIO
 	select SERIO_SERPORT
 	default n

drivers/i2c/busses/i2c-at91.c

@@ -723,9 +723,9 @@ static int at91_twi_probe(struct platform_device *pdev)
 	if (!dev->pdata)
 		return -ENODEV;
 
-	dev->base = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!dev->base)
-		return -EBUSY;
+	dev->base = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(dev->base))
+		return PTR_ERR(dev->base);
 
 	dev->irq = platform_get_irq(pdev, 0);
 	if (dev->irq < 0)

drivers/i2c/busses/i2c-imx.c

@@ -511,9 +511,9 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!base)
-		return -EBUSY;
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	i2c_imx = devm_kzalloc(&pdev->dev, sizeof(struct imx_i2c_struct),
 				GFP_KERNEL);

drivers/i2c/busses/i2c-ocores.c

@@ -12,6 +12,7 @@
  * kind, whether express or implied.
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -364,9 +365,9 @@ static int ocores_i2c_probe(struct platform_device *pdev)
 	if (!i2c)
 		return -ENOMEM;
 
-	i2c->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!i2c->base)
-		return -EADDRNOTAVAIL;
+	i2c->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(i2c->base))
+		return PTR_ERR(i2c->base);
 
 	pdata = pdev->dev.platform_data;
 	if (pdata) {

drivers/i2c/busses/i2c-omap.c

@@ -1103,11 +1103,9 @@ omap_i2c_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	dev->base = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!dev->base) {
-		dev_err(&pdev->dev, "I2C region already claimed\n");
-		return -ENOMEM;
-	}
+	dev->base = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(dev->base))
+		return PTR_ERR(dev->base);
 
 	match = of_match_device(of_match_ptr(omap_i2c_of_match), &pdev->dev);
 	if (match) {

drivers/i2c/busses/i2c-rcar.c

@@ -642,11 +642,9 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	priv->io = devm_request_and_ioremap(dev, res);
-	if (!priv->io) {
-		dev_err(dev, "cannot ioremap\n");
-		return -ENODEV;
-	}
+	priv->io = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->io))
+		return PTR_ERR(priv->io);
 
 	priv->irq = platform_get_irq(pdev, 0);
 	init_waitqueue_head(&priv->wait);

drivers/i2c/busses/i2c-s3c2410.c

@@ -1042,11 +1042,10 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
 		goto err_clk;
 	}
 
-	i2c->regs = devm_request_and_ioremap(&pdev->dev, res);
+	i2c->regs = devm_ioremap_resource(&pdev->dev, res);
 
-	if (i2c->regs == NULL) {
-		dev_err(&pdev->dev, "cannot map IO\n");
-		ret = -ENXIO;
+	if (IS_ERR(i2c->regs)) {
+		ret = PTR_ERR(i2c->regs);
 		goto err_clk;
 	}
 

drivers/i2c/busses/i2c-sirf.c

@@ -309,10 +309,9 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	siic->base = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (siic->base == NULL) {
-		dev_err(&pdev->dev, "IO remap failed!\n");
-		err = -ENOMEM;
+	siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(siic->base)) {
+		err = PTR_ERR(siic->base);
 		goto out;
 	}
 

drivers/i2c/busses/i2c-stu300.c

@@ -888,11 +888,11 @@ stu300_probe(struct platform_device *pdev)
 	if (!res)
 		return -ENOENT;
 
-	dev->virtbase = devm_request_and_ioremap(&pdev->dev, res);
+	dev->virtbase = devm_ioremap_resource(&pdev->dev, res);
 	dev_dbg(&pdev->dev, "initialize bus device I2C%d on virtual "
 		"base %p\n", bus_nr, dev->virtbase);
-	if (!dev->virtbase)
-		return -ENOMEM;
+	if (IS_ERR(dev->virtbase))
+		return PTR_ERR(dev->virtbase);
 
 	dev->irq = platform_get_irq(pdev, 0);
 	ret = devm_request_irq(&pdev->dev, dev->irq, stu300_irh, 0, NAME, dev);