Re: [PATCH] warning fixes for 2.4.5pre5

Rich Baum (richbaum@acm.org)
Fri, 25 May 2001 15:47:29 -0500


On Friday 25 May 2001 11:10 am, Alan Cox wrote:
> > This patch has been tested and the code does compile.
> >
> > Rich
> >
> > diff -urN -X /linux/dontdiff linux/arch/i386/math-emu/fpu_trig.c
> > rb/arch/i386/math-emu/fpu_trig.c
> > --- linux/arch/i386/math-emu/fpu_trig.c Fri Apr 6 12:42:47 2001
> > +++ rb/arch/i386/math-emu/fpu_trig.c Tue May 22 16:44:57 2001
> > @@ -1543,6 +1543,7 @@
> > EXCEPTION(EX_INTERNAL | 0x116);
> > return;
> > #endif /* PARANOID */
> > + return;
>
> This seems to be a change in behaviour. Have you done a glibc fpu test on
> the changes ?

I used objdump on the fpu_trig.o files in both trees and they do differ.
When I use break instead of return in my tree the two files are the same.
Here is a revised patch that fixes the warning and produces the same assembly
code code as the version in Linus' tree.


diff -urN -X /linux/dontdiff linux/arch/i386/math-emu/fpu_trig.c
rb/arch/i386/math-emu/fpu_trig.c
--- linux/arch/i386/math-emu/fpu_trig.c Fri Apr 6 12:42:47 2001
+++ rb/arch/i386/math-emu/fpu_trig.c Tue May 22 16:44:57 2001
@@ -1543,6 +1543,7 @@
EXCEPTION(EX_INTERNAL | 0x116);
return;
#endif /* PARANOID */
+ break;
-
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