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kfifo: Use "const" definitions 

Currently kfifo cannot be used by parts of the kernel that use "const"
properly as kfifo itself does not use const for passed data blocks which
are indeed const.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2009-09-19 13:13:17 -07:00 committed by Live-CD User
parent 5342b77c41
commit f8a7c1a976
2 changed files with 3 additions and 3 deletions
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4
include/linux/kfifo.h
View File

@ -38,7 +38,7 @@ extern struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask,
spinlock_t *lock);
extern void kfifo_free(struct kfifo *fifo);
extern unsigned int __kfifo_put(struct kfifo *fifo,
unsigned char *buffer, unsigned int len);
const unsigned char *buffer, unsigned int len);
extern unsigned int __kfifo_get(struct kfifo *fifo,
unsigned char *buffer, unsigned int len);
@ -77,7 +77,7 @@ static inline void kfifo_reset(struct kfifo *fifo)
* bytes copied.
*/
static inline unsigned int kfifo_put(struct kfifo *fifo,
unsigned char *buffer, unsigned int len)
const unsigned char *buffer, unsigned int len)
{
unsigned long flags;
unsigned int ret;

2
kernel/kfifo.c
View File

@ -117,7 +117,7 @@ EXPORT_SYMBOL(kfifo_free);
* writer, you don't need extra locking to use these functions.
*/
unsigned int __kfifo_put(struct kfifo *fifo,
unsigned char *buffer, unsigned int len)
const unsigned char *buffer, unsigned int len)
{
unsigned int l;