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authorSam Ravnborg <sam@ravnborg.org>2014-05-16 23:25:47 +0200
committerDavid S. Miller <davem@davemloft.net>2014-05-18 19:01:28 -0700
commit66a9df34e31673503b279a197430af704f8f749c (patch)
treef865b4884accc9163247c8db4169b1c9e6791a91 /arch/sparc/math-emu
parent347b0cf022a8da1b4517acc7ea310a27ca2cf7ef (diff)
downloadlinux-66a9df34e31673503b279a197430af704f8f749c.tar.gz
sparc64: remove cast from output constraints in math asm statements
The following asm statements generated a sparse warning: asm("addcc \n\t" : "=r" (((USItype)(r2))) warning: asm output is not an lvalue When asking on the sparse mailing list Linus replyed: " Those casts to (USItype) are all pointless to begin with (since the values are of that type already!) and they mean that the expression isn't something you can assign to (lvalue). " In the math emulation code drop all casts in the output parts of the asm statements. This fixes a lot of "warning: asm output is not an lvalue" sparse warnings in math_64.c. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/math-emu')
-rw-r--r--arch/sparc/math-emu/sfp-util_64.h12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/sparc/math-emu/sfp-util_64.h b/arch/sparc/math-emu/sfp-util_64.h
index 425d3cf01af4..51320a861cc2 100644
--- a/arch/sparc/math-emu/sfp-util_64.h
+++ b/arch/sparc/math-emu/sfp-util_64.h
@@ -17,8 +17,8 @@
"bcs,a,pn %%xcc, 1f\n\t" \
"add %0, 1, %0\n" \
"1:" \
- : "=r" ((UDItype)(sh)), \
- "=&r" ((UDItype)(sl)) \
+ : "=r" (sh), \
+ "=&r" (sl) \
: "r" ((UDItype)(ah)), \
"r" ((UDItype)(bh)), \
"r" ((UDItype)(al)), \
@@ -31,8 +31,8 @@
"bcs,a,pn %%xcc, 1f\n\t" \
"sub %0, 1, %0\n" \
"1:" \
- : "=r" ((UDItype)(sh)), \
- "=&r" ((UDItype)(sl)) \
+ : "=r" (sh), \
+ "=&r" (sl) \
: "r" ((UDItype)(ah)), \
"r" ((UDItype)(bh)), \
"r" ((UDItype)(al)), \
@@ -64,8 +64,8 @@
"sllx %3,32,%3\n\t" \
"add %1,%3,%1\n\t" \
"add %5,%2,%0" \
- : "=r" ((UDItype)(wh)), \
- "=&r" ((UDItype)(wl)), \
+ : "=r" (wh), \
+ "=&r" (wl), \
"=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
: "r" ((UDItype)(u)), \
"r" ((UDItype)(v)) \