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lib: move kasprintf to a separate file
kasprintf pulls in kmalloc which proved to be fatal for at least bootimage target on alpha. Move it to a separate file so only users of kasprintf are exposed to the dependency on kmalloc. Signed-off-by: Sam Ravnborg <[email protected]> Cc: Jeremy Fitzhardinge <[email protected]> Cc: Meelis Roos <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Jay Estabrook <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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Original file line number | Diff line number | Diff line change |
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/* | ||
* linux/lib/kasprintf.c | ||
* | ||
* Copyright (C) 1991, 1992 Linus Torvalds | ||
*/ | ||
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#include <stdarg.h> | ||
#include <linux/module.h> | ||
#include <linux/types.h> | ||
#include <linux/string.h> | ||
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/* Simplified asprintf. */ | ||
char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap) | ||
{ | ||
unsigned int len; | ||
char *p; | ||
va_list aq; | ||
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va_copy(aq, ap); | ||
len = vsnprintf(NULL, 0, fmt, aq); | ||
va_end(aq); | ||
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p = kmalloc(len+1, gfp); | ||
if (!p) | ||
return NULL; | ||
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vsnprintf(p, len+1, fmt, ap); | ||
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return p; | ||
} | ||
EXPORT_SYMBOL(kvasprintf); | ||
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char *kasprintf(gfp_t gfp, const char *fmt, ...) | ||
{ | ||
va_list ap; | ||
char *p; | ||
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va_start(ap, fmt); | ||
p = kvasprintf(gfp, fmt, ap); | ||
va_end(ap); | ||
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return p; | ||
} | ||
EXPORT_SYMBOL(kasprintf); |
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