staging: csr: remove oska submodule

Turns out nothing in this module was being used at all, so instead of
deleting it piece by piece, just remove the whole thing.  I don't know
why it was added in the first place.

Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com>
Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com>
Cc: Riku Mettälä <riku.mettala@bluegiga.com>
Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/csr/Makefile

@@ -1,5 +1,3 @@
-obj-$(CONFIG_CSR_WIFI)	+= oska/
-
 ccflags-y	:= -DCSR_SME_USERSPACE -DCSR_SUPPORT_SME -DREMOTE_SYS_SAP -DCSR_WIFI_SECURITY_WAPI_ENABLE -DENABLE_SHUTDOWN -DUNIFI_DEBUG
 ccflags-y	+= -DSDIO_EXPORTS_STRUCT_DEVICE -DCSR_WIFI_SUPPORT_MMC_DRIVER -DCSR_WIFI_SINGLE_FUNCTION -DCSR_WIFI_SPLIT_PATCH
 ccflags-y	+= -DCSR_SUPPORT_WEXT -DREMOTE_SYS_SAP  -DREMOTE_MGT_SAP -DCSR_WIFI_SECURITY_WAPI_ENABLE -DCSR_WIFI_SECURITY_WAPI_QOSCTRL_MIC_WORKAROUND -DENABLE_SHUTDOWN -DCSR_WIFI_NME_ENABLE -DCSR_WIFI_AP_ENABLE -DCSR_SUPPORT_WEXT_AP -DCSR_WIFI_REQUEUE_PACKET_TO_HAL

drivers/staging/csr/oska/Makefile

@@ -1,7 +0,0 @@
-obj-$(CONFIG_CSR_WIFI) := csr_oska.o
-
-csr_oska-y := \
-       event.o \
-       oska_module.o \
-       thread.o
-

drivers/staging/csr/oska/alloc.h

@@ -1,41 +0,0 @@
-/*
- * OSKA Linux implementation -- memory allocation
- *
- * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_ALLOC_H
-#define __OSKA_LINUX_ALLOC_H
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-
-static inline void *os_alloc(size_t size)
-{
-    return kzalloc(size, GFP_ATOMIC);
-}
-
-static inline void *os_alloc_nonzeroed(size_t size)
-{
-    return kmalloc(size, GFP_KERNEL);
-}
-
-static inline void os_free(void *ptr)
-{
-    kfree(ptr);
-}
-
-static inline void *os_alloc_big(size_t size)
-{
-    return vmalloc(size);
-}
-
-static inline void os_free_big(void *ptr)
-{
-    vfree(ptr);
-}
-
-#endif /* #ifndef __OSKA_LINUX_ALLOC_H */

drivers/staging/csr/oska/event.c

@@ -1,82 +0,0 @@
-/*
- * Linux event functions.
- *
- * Copyright (C) 2009 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#include <linux/module.h>
-#include <linux/sched.h>
-
-#include "event.h"
-
-void os_event_init(os_event_t *evt)
-{
-    init_waitqueue_head(&evt->wq);
-    spin_lock_init(&evt->lock);
-    evt->events = 0;
-}
-EXPORT_SYMBOL(os_event_init);
-
-uint16_t os_event_wait(os_event_t *evt)
-{
-    uint16_t e;
-    unsigned long flags;
-
-    wait_event(evt->wq, evt->events != 0);
-
-    spin_lock_irqsave(&evt->lock, flags);
-    e = evt->events;
-    evt->events &= ~e;
-    spin_unlock_irqrestore(&evt->lock, flags);
-
-    return e;
-}
-EXPORT_SYMBOL(os_event_wait);
-
-uint16_t os_event_wait_interruptible(os_event_t *evt)
-{
-    uint16_t e;
-    unsigned long flags;
-
-    wait_event_interruptible(evt->wq, evt->events != 0);
-
-    spin_lock_irqsave(&evt->lock, flags);
-    e = evt->events;
-    evt->events &= ~e;
-    spin_unlock_irqrestore(&evt->lock, flags);
-
-    return e;
-}
-EXPORT_SYMBOL(os_event_wait_interruptible);
-
-uint16_t os_event_wait_timed(os_event_t *evt, unsigned timeout_ms)
-{
-    uint16_t e;
-    unsigned long flags;
-
-    wait_event_interruptible_timeout(evt->wq,
-                                     evt->events != 0,
-                                     msecs_to_jiffies(timeout_ms));
-
-    spin_lock_irqsave(&evt->lock, flags);
-    e = evt->events;
-    evt->events &= ~e;
-    spin_unlock_irqrestore(&evt->lock, flags);
-
-    return e;
-}
-EXPORT_SYMBOL(os_event_wait_timed);
-
-void os_event_raise(os_event_t *evt, uint16_t events)
-{
-    unsigned long flags;
-
-    spin_lock_irqsave(&evt->lock, flags);
-    evt->events |= events;
-    spin_unlock_irqrestore(&evt->lock, flags);
-
-    wake_up(&evt->wq);
-}
-EXPORT_SYMBOL(os_event_raise);

drivers/staging/csr/oska/event.h

@@ -1,33 +0,0 @@
-/*
- * OSKA Linux implementation -- events
- *
- * Copyright (C) 2009 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_EVENT_H
-#define __OSKA_LINUX_EVENT_H
-
-#include <linux/kernel.h>
-#include <linux/wait.h>
-#include <linux/spinlock.h>
-
-typedef struct {
-    wait_queue_head_t wq;
-    spinlock_t lock;
-    uint16_t events;
-} os_event_t;
-
-void os_event_init(os_event_t *evt);
-
-static inline void os_event_destroy(os_event_t *evt)
-{
-}
-
-uint16_t os_event_wait(os_event_t *evt);
-uint16_t os_event_wait_interruptible(os_event_t *evt);
-uint16_t os_event_wait_timed(os_event_t *evt, unsigned timeout_ms);
-void os_event_raise(os_event_t *evt, uint16_t events);
-
-#endif /* #ifndef __OSKA_LINUX_EVENT_H */

drivers/staging/csr/oska/mutex.h

@@ -1,42 +0,0 @@
-/*
- * OSKA Linux implementation -- mutexes
- *
- * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_MUTEX_H
-#define __OSKA_LINUX_MUTEX_H
-
-#include <linux/kernel.h>
-#include <linux/mutex.h>
-#include <linux/semaphore.h>
-
-
-/* Real mutexes were only added to 2.6.16 so use semaphores
-   instead. */
-typedef struct semaphore os_mutex_t;
-
-static inline void os_mutex_init(os_mutex_t *mutex)
-{
-    //init_MUTEX(mutex);
-    sema_init(mutex, 1);
-}
-
-static inline void os_mutex_destroy(os_mutex_t *mutex)
-{
-    /* no op */
-}
-
-static inline void os_mutex_lock(os_mutex_t *mutex)
-{
-    down(mutex);
-}
-
-static inline void os_mutex_unlock(os_mutex_t *mutex)
-{
-    up(mutex);
-}
-
-#endif /* __OSKA_LINUX_MUTEX_H */

drivers/staging/csr/oska/oska_module.c

@@ -1,13 +0,0 @@
-/*
- * Linux kernel module support.
- *
- * Copyright (C) 2010 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#include <linux/module.h>
-
-MODULE_DESCRIPTION("Operating System Kernel Abstraction");
-MODULE_AUTHOR("Cambridge Silicon Radio Ltd.");
-MODULE_LICENSE("GPL and additional rights");

drivers/staging/csr/oska/semaphore.h

@@ -1,70 +0,0 @@
-/*
- * OSKA Linux implementation -- semaphores
- *
- * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_SEMAPHORE_H
-#define __OSKA_LINUX_SEMAPHORE_H
-
-#include <linux/kernel.h>
-
-#include <linux/kernel-compat.h>
-
-typedef struct semaphore os_semaphore_t;
-
-static inline void os_semaphore_init(os_semaphore_t *sem)
-{
-    sema_init(sem, 0);
-}
-
-static inline void os_semaphore_destroy(os_semaphore_t *sem)
-{
-}
-
-static inline void os_semaphore_wait(os_semaphore_t *sem)
-{
-    down(sem);
-}
-
-/*
- * down_timeout() was added in 2.6.26 with the generic semaphore
- * implementation.  For now, only support it on recent kernels as
- * semaphores may be replaced by an event API that would be
- * implemented with wait_event(), and wait_event_timeout().
- */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
-
-static inline int os_semaphore_wait_timed(os_semaphore_t *sem,
-                                           int time_ms)
-{
-    if (down_timeout(sem, msecs_to_jiffies(time_ms)) < 0) {
-        return -ETIMEDOUT;
-    }
-    return 0;
-}
-
-#else
-
-static inline int os_semaphore_wait_timed(os_semaphore_t *sem, int time_ms)
-{
-	unsigned long now = jiffies;
-	do{
-		if(!down_trylock(sem))
-			return 0;
-		msleep(1);
-	} while(time_before(jiffies, now + msecs_to_jiffies(time_ms)));
-
-	return -ETIMEDOUT;
-}
-
-#endif
-
-static inline void os_semaphore_post(os_semaphore_t *sem)
-{
-    up(sem);
-}
-
-#endif /* __OSKA_LINUX_SEMAPHORE_H */

drivers/staging/csr/oska/spinlock.h

@@ -1,43 +0,0 @@
-/*
- * OSKA Linux implementation -- spinlocks
- *
- * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_SPINLOCK_H
-#define __OSKA_LINUX_SPINLOCK_H
-
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-
-typedef spinlock_t os_spinlock_t;
-typedef unsigned long os_int_status_t;
-
-static inline void os_spinlock_init(os_spinlock_t *lock)
-{
-    spinlock_t *l = (spinlock_t *)lock;
-    spin_lock_init(l);
-}
-
-static inline void os_spinlock_destroy(os_spinlock_t *lock)
-{
-    /* no op */
-}
-
-static inline void os_spinlock_lock_intsave(os_spinlock_t *lock,
-					    os_int_status_t *int_state)
-{
-    spinlock_t *l = (spinlock_t *)lock;
-    spin_lock_irqsave(l, *int_state);
-}
-
-static inline void os_spinlock_unlock_intrestore(os_spinlock_t *lock,
-						 os_int_status_t *int_state)
-{
-    spinlock_t *l = (spinlock_t *)lock;
-    spin_unlock_irqrestore(l, *int_state);
-}
-
-#endif /* #ifndef __OSKA_LINUX_SPINLOCK_H */

drivers/staging/csr/oska/thread.c

@@ -1,66 +0,0 @@
-/*
- * Linux thread functions.
- *
- * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#include <linux/module.h>
-
-#include "thread.h"
-
-static int thread_func(void *data)
-{
-    os_thread_t *thread = data;
-
-    thread->func(thread->arg);
-
-    /*
-     * kthread_stop() cannot handle the thread exiting while
-     * kthread_should_stop() is false, so sleep until kthread_stop()
-     * wakes us up.
-     */
-    set_current_state(TASK_INTERRUPTIBLE);
-    if (!kthread_should_stop())
-        schedule();
-
-    return 0;
-}
-
-int os_thread_create(os_thread_t *thread, const char *name, void (*func)(void *), void *arg)
-{
-    thread->func = func;
-    thread->arg = arg;
-
-    thread->stop = 0;
-
-    thread->task = kthread_run(thread_func, thread, name);
-    if (IS_ERR(thread->task)) {
-        return PTR_ERR(thread->task);
-    }
-    return 0;
-}
-EXPORT_SYMBOL(os_thread_create);
-
-void os_thread_stop(os_thread_t *thread, os_event_t *evt)
-{
-    /*
-     * Stop flag must be set before the event is raised so
-     * kthread_should_stop() cannot be used.
-     */
-    thread->stop = 1;
-
-    if (evt) {
-        os_event_raise(evt, ~0);
-    }
-
-    kthread_stop(thread->task);
-}
-EXPORT_SYMBOL(os_thread_stop);
-
-int os_thread_should_stop(os_thread_t *thread)
-{
-    return thread->stop;
-}
-EXPORT_SYMBOL(os_thread_should_stop);

drivers/staging/csr/oska/thread.h

@@ -1,39 +0,0 @@
-/*
- * OSKA Linux implementation -- threading
- *
- * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_THREAD_H
-#define __OSKA_LINUX_THREAD_H
-
-#include <linux/version.h>
-#include <linux/kernel.h>
-#include <linux/kthread.h>
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
-#include <linux/freezer.h>
-#endif
-#include "event.h"
-
-struct os_thread_lx {
-    void (*func)(void *);
-    void *arg;
-    struct task_struct *task;
-    int stop;
-};
-
-typedef struct os_thread_lx os_thread_t;
-
-int os_thread_create(os_thread_t *thread, const char *name,
-                     void (*func)(void *), void *arg);
-void os_thread_stop(os_thread_t *thread, os_event_t *evt);
-int os_thread_should_stop(os_thread_t *thread);
-
-static inline void os_try_suspend_thread(os_thread_t *thread)
-{
-    try_to_freeze();
-}
-
-#endif /* __OSKA_LINUX_THREAD_H */

drivers/staging/csr/oska/trace.h

@@ -1,23 +0,0 @@
-/*
- * OSKA Linux implementation -- tracing messages.
- *
- * Copyright (C) 2009 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_TRACE_H
-#define __OSKA_LINUX_TRACE_H
-
-#include <linux/kernel.h>
-
-#ifndef OS_TRACE_PREFIX
-#  define OS_TRACE_PREFIX ""
-#endif
-
-#define os_trace_err(format, ...)  printk(KERN_ERR OS_TRACE_PREFIX format "\n", ## __VA_ARGS__)
-#define os_trace_warn(format, ...) printk(KERN_WARNING OS_TRACE_PREFIX format "\n", ##  __VA_ARGS__)
-#define os_trace_info(format, ...) printk(KERN_INFO OS_TRACE_PREFIX format "\n", ## __VA_ARGS__)
-#define os_trace_dbg(format, ...)  printk(KERN_DEBUG OS_TRACE_PREFIX format "\n", ## __VA_ARGS__)
-
-#endif /* #ifndef __OSKA_LINUX_TRACE_H */

drivers/staging/csr/oska/util.h

@@ -1,48 +0,0 @@
-/*
- * OSKA Linux implementation -- misc. utility functions
- *
- * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * Refer to LICENSE.txt included with this source code for details on
- * the license terms.
- */
-#ifndef __OSKA_LINUX_UTILS_H
-#define __OSKA_LINUX_UTILS_H
-
-#include <linux/kernel.h>
-#include <linux/bug.h>
-#include <asm/byteorder.h>
-
-#define OS_ASSERT(expr) BUG_ON(!(expr))
-
-static inline uint16_t os_le16_to_cpu(uint16_t x)
-{
-    return le16_to_cpu(x);
-}
-
-static inline uint16_t os_cpu_to_le16(uint16_t x)
-{
-    return cpu_to_le16(x);
-}
-
-static inline uint32_t os_le32_to_cpu(uint32_t x)
-{
-    return le32_to_cpu(x);
-}
-
-static inline uint32_t os_cpu_to_le32(uint32_t x)
-{
-    return cpu_to_le32(x);
-}
-
-static inline uint64_t os_le64_to_cpu(uint64_t x)
-{
-    return le64_to_cpu(x);
-}
-
-static inline uint64_t os_cpu_to_le64(uint64_t x)
-{
-    return cpu_to_le64(x);
-}
-
-#endif /* __OSKA_LINUX_UTILS_H */