TTY: 8250, revert module name change

In 3.7 the 8250 module name was changed unintentionally from 8250 to
8250_core by commit 835d844d1a28efba81d5aca7385e24c29d3a6db2
(8250_pnp: do pnp probe before legacy probe). We then had to
re-introduce the old module options to ensure the old good
8250.nr_uart & co. still work. This can be done only by a very dirty
hack and we did it in f2b8dfd9e480c3db3bad0c25c590a5d11b31f4ef
(serial: 8250: Keep 8250.<xxxx> module options functional after driver
rename).

That is so damn ugly so that I decided to revert to the old module
name and deprecate the new 8250_core options present in 3.7 and 3.8
only. The deprecation will happen in the following patch.

Note that this patch changes the hack above to support "8250_core.*",
because we now have "8250.*" natively.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250.c → drivers/tty/serial/8250/8250_core.c

@@ -3432,7 +3432,7 @@ MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR);
 static void __used s8250_options(void)
 {
 #undef MODULE_PARAM_PREFIX
-#define MODULE_PARAM_PREFIX "8250."
+#define MODULE_PARAM_PREFIX "8250_core."
 
 	module_param_cb(share_irqs, &param_ops_uint, &share_irqs, 0644);
 	module_param_cb(nr_uarts, &param_ops_uint, &nr_uarts, 0644);
@@ -3444,5 +3444,5 @@ static void __used s8250_options(void)
 #endif
 }
 #else
-MODULE_ALIAS("8250");
+MODULE_ALIAS("8250_core");
 #endif

drivers/tty/serial/8250/Makefile

@@ -2,10 +2,10 @@
 # Makefile for the 8250 serial device drivers.
 #
 
-obj-$(CONFIG_SERIAL_8250)		+= 8250_core.o
-8250_core-y				:= 8250.o
-8250_core-$(CONFIG_SERIAL_8250_PNP)	+= 8250_pnp.o
-8250_core-$(CONFIG_SERIAL_8250_DMA)	+= 8250_dma.o
+obj-$(CONFIG_SERIAL_8250)		+= 8250.o
+8250-y					:= 8250_core.o
+8250-$(CONFIG_SERIAL_8250_PNP)		+= 8250_pnp.o
+8250-$(CONFIG_SERIAL_8250_DMA)		+= 8250_dma.o
 obj-$(CONFIG_SERIAL_8250_GSC)		+= 8250_gsc.o
 obj-$(CONFIG_SERIAL_8250_PCI)		+= 8250_pci.o
 obj-$(CONFIG_SERIAL_8250_HP300)		+= 8250_hp300.o