MIPS: asm: asmmacro: Replace "add" instructions with "addu"

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commit 98a833c1fa upstream.

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>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

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Markos Chandras 2014-11-05 14:17:52 +00:00 • committed by Luis Henriques

parent 0c24a6c4cc

commit f27d07312f

1 changed files with 2 additions and 2 deletions

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arch/mips/include/asm/asmmacro.h

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