linux-stable/samples/kfifo
Stefani Seibold 498d319bb5 kfifo API type safety
This patch enhances the type safety for the kfifo API.  It is now safe
to put const data into a non const FIFO and the API will now generate a
compiler warning when reading from the fifo where the destination
address is pointing to a const variable.

As a side effect the kfifo_put() does now expect the value of an element
instead a pointer to the element.  This was suggested Russell King.  It
make the handling of the kfifo_put easier since there is no need to
create a helper variable for getting the address of a pointer or to pass
integers of different sizes.

IMHO the API break is okay, since there are currently only six users of
kfifo_put().

The code is also cleaner by kicking out the "if (0)" expressions.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Stefani Seibold <stefani@seibold.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15 09:32:23 +09:00
..
bytestream-example.c kfifo API type safety 2013-11-15 09:32:23 +09:00
dma-example.c kfifo API type safety 2013-11-15 09:32:23 +09:00
inttype-example.c kfifo API type safety 2013-11-15 09:32:23 +09:00
Makefile kfifo: add example files to the kernel sample directory 2010-08-11 08:59:23 -07:00
record-example.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00