sbni.c in 2.6.0-test5 fails to compile with gcc 3.3 with the following
error:
<-- snip -->
...
CC drivers/net/wan/sbni.o
...
drivers/net/wan/sbni.c: In function `calc_crc32':
drivers/net/wan/sbni.c:1568: error: asm-specifier for variable `_crc'
conflicts with asm clobber list
make[3]: *** [drivers/net/wan/sbni.o] Error 1
<-- snip -->
Below is the patch by Margit Schubert-White to fix this issue (it is
already in 2.4).
cu
Adrian
--- linux/drivers/net/wan/sbni.c 2003-09-08 21:50:01.000000000 +0200
+++ linux/drivers/net/wan/sbni.c 2003-08-25 13:44:42.000000000 +0200
@@ -1562,13 +1552,13 @@
static u32
calc_crc32( u32 crc, u8 *p, u32 len )
{
- register u32 _crc __asm ( "ax" );
+ register u32 _crc;
_crc = crc;
__asm __volatile (
"xorl %%ebx, %%ebx\n"
- "movl %1, %%esi\n"
- "movl %2, %%ecx\n"
+ "movl %2, %%esi\n"
+ "movl %3, %%ecx\n"
"movl $crc32tab, %%edi\n"
"shrl $2, %%ecx\n"
"jz 1f\n"
@@ -1604,7 +1594,7 @@
"jnz 0b\n"
"1:\n"
- "movl %2, %%ecx\n"
+ "movl %3, %%ecx\n"
"andl $3, %%ecx\n"
"jz 2f\n"
@@ -1629,9 +1619,9 @@
"xorb 2(%%esi), %%bl\n"
"xorl (%%edi,%%ebx,4), %%eax\n"
"2:\n"
- :
- : "a" (_crc), "g" (p), "g" (len)
- : "ax", "bx", "cx", "dx", "si", "di"
+ : "=a" (_crc)
+ : "0" (_crc), "g" (p), "g" (len)
+ : "bx", "cx", "dx", "si", "di"
);
return _crc;
-
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