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dahdi: Introduce dahdi_kasprintf for pre 2.6.12 kernels.

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kasprintf will be used in upcoming changes and it's not supported on
RHEL4 kernels. This change essentially backports it.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9593 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This commit is contained in:
Shaun Ruffell 2011-01-03 18:27:05 +00:00
parent 0dc5fd0ffb
commit 215d530887
2 changed files with 32 additions and 0 deletions
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29
drivers/dahdi/dahdi-base.c
View File

@ -9058,5 +9058,34 @@ static void __exit dahdi_cleanup(void)
#endif
}
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 12)
char *dahdi_kasprintf(gfp_t gfp, const char *fmt, ...)
{
va_list ap;
char *p;
char *temp;
unsigned int len;
temp = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!temp)
return NULL;
va_start(ap, fmt);
len = vsnprintf(temp, PAGE_SIZE, fmt, ap);
va_end(ap);
p = kzalloc(len + 1, gfp);
if (!p) {
kfree(temp);
return NULL;
}
memcpy(p, temp, len + 1);
kfree(temp);
return p;
}
EXPORT_SYMBOL(dahdi_kasprintf);
#endif
module_init(dahdi_init);
module_exit(dahdi_cleanup);

3
include/dahdi/kernel.h
View File

@ -1285,6 +1285,8 @@ static inline void list_replace(struct list_head *old, struct list_head *new)
#define kzalloc(a, b) kcalloc(1, a, b)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 12)
#define synchronize_rcu() synchronize_kernel()
#define kasprintf dahdi_kasprintf
char *dahdi_kasprintf(gfp_t gfp, const char *fmt, ...);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 11)
#if !defined(HAVE_WAIT_FOR_COMPLETION_TIMEOUT)
static inline unsigned long
@ -1301,6 +1303,7 @@ wait_for_completion_interruptible_timeout(struct completion *x,
return timeout;
}
#endif
#endif /* 2.6.11 */
#endif /* 2.6.12 */
#endif /* 2.6.14 */