Re: [PATCH/RFC] m68k: Uninline strchr()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sun, 2011-01-09 at 19:42 +0100, Geert Uytterhoeven wrote:
Some versions of gcc replace calls to strstr() with single-character
"needle" string parameters by calls to strchr() behind our back.

If strchr() is defined as an inline function, this causes linking errors
like

	ERROR: "strchr" [drivers/target/target_core_mod.ko] undefined!

As m68k is the only architecture that has an inline strchr() and this
inline version is not an optimized asm version, uninline strchr() and use
the standard out-of-line C version in lib/string.c instead.

This also decreases the defconfig/allmodconfig kernel image sizes by a few
hundred bytes.

Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

Hi Geert,

Thanks for taking the time to fix this up in m68k code.  As m68k is one
of the last architectures that target code has yet to run on, I am
excited to see this finally happen.  ;)

Best Regards,

Reviewed-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx>


diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h
index 2936dda..65b1312 100644
--- a/arch/m68k/include/asm/string.h
+++ b/arch/m68k/include/asm/string.h
@@ -81,18 +81,6 @@ static inline char *strncpy(char *dest, const char *src, size_t n)
 	strcpy(__d + strlen(__d), (s));		\
 })
 
-#define __HAVE_ARCH_STRCHR
-static inline char *strchr(const char *s, int c)
-{
-	char sc, ch = c;
-
-	for (; (sc = *s++) != ch; ) {
-		if (!sc)
-			return NULL;
-	}
-	return (char *)s - 1;
-}
-
 #ifndef CONFIG_COLDFIRE
 #define __HAVE_ARCH_STRCMP
 static inline int strcmp(const char *cs, const char *ct)

--
To unsubscribe from this list: send the line "unsubscribe linux-m68k" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Video for Linux]     [Yosemite News]     [Linux S/390]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux