[PATCH] Oddity in mxcsr_feature_mask_init()

[Samuel Thibault]

Hi,

In arch/i386/kernel/i387.c:mxcsr_feature_mask_init(), one can read:

        asm volatile("fxsave %0" : : "m" (current->thread.i387.fxsave)); 

But I would rather have written:

        asm("fxsave %0" : "=m" (current->thread.i387.fxsave)); 

Considering the code around, it doesn't do much difference, but it makes
more sense (i.e. we just fill fxsave).

Samuel

Signed-off-by: Samuel Thibault <[EMAIL PROTECTED]>

--- linux-2.6.21-orig/arch/i386/kernel/i387.c.orig      2007-06-08 
18:18:10.000000000 +0800
+++ linux-2.6.21-orig/arch/i386/kernel/i387.c   2007-06-08 18:18:22.000000000 
+0800
@@ -32,7 +32,7 @@
        clts();
        if (cpu_has_fxsr) {
                memset(&current->thread.i387.fxsave, 0, sizeof(struct 
i387_fxsave_struct));
-               asm volatile("fxsave %0" : : "m" 
(current->thread.i387.fxsave)); 
+               asm("fxsave %0" : "=m" (current->thread.i387.fxsave)); 
                mask = current->thread.i387.fxsave.mxcsr_mask;
                if (mask == 0) mask = 0x0000ffbf;
        } 
-
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