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| author | Markos Chandras <markos.chandras@imgtec.com> | 2014-11-05 15:17:52 +0100 |
|---|---|---|
| committer | Markos Chandras <markos.chandras@imgtec.com> | 2015-02-17 16:37:18 +0100 |
| commit | 98a833c1fa4de0695830f77b2d13fd86693da298 (patch) | |
| tree | 1539d75d7eb67d2565ac9ff62346ec8b64a13d4c | |
| parent | MIPS: asm: asmmacro: Add MIPS R6 support to the simple EI/DI variants (diff) | |
| download | linux-98a833c1fa4de0695830f77b2d13fd86693da298.tar.xz linux-98a833c1fa4de0695830f77b2d13fd86693da298.zip | |
MIPS: asm: asmmacro: Replace "add" instructions with "addu"
The "add" instruction is actually a macro in binutils and depending on
the size of the immediate it can expand to an "addi" instruction.
However, the "addi" instruction traps on overflows which is not
something we want on address calculation.
Link: http://www.linux-mips.org/archives/linux-mips/2015-01/msg00121.html
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
| -rw-r--r-- | arch/mips/include/asm/asmmacro.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h index b6540cfcc97b..0af29ce84e0b 100644 --- a/arch/mips/include/asm/asmmacro.h +++ b/arch/mips/include/asm/asmmacro.h @@ -304,7 +304,7 @@ .set push .set noat SET_HARDFLOAT - add $1, \base, \off + addu $1, \base, \off .word LDD_MSA_INSN | (\wd << 6) .set pop .endm @@ -313,7 +313,7 @@ .set push .set noat SET_HARDFLOAT - add $1, \base, \off + addu $1, \base, \off .word STD_MSA_INSN | (\wd << 6) .set pop .endm |