powerpc: PTRACE_PEEKUSR/PTRACE_POKEUSER of FPR registers in little endian builds
authorAnton Blanchard <anton@samba.org>
Mon, 23 Sep 2013 02:04:38 +0000 (12:04 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 11 Oct 2013 05:48:27 +0000 (16:48 +1100)
commit87fec0514f613f8ac43c01b0bc0bc7072c5d10ae
tree9da3fd6e0c527501160535e9095c4596fb4eb056
parente156bd8ad76939a9bcd66d85cf06f8cde1fb8030
powerpc: PTRACE_PEEKUSR/PTRACE_POKEUSER of FPR registers in little endian builds

FPRs overlap the high 64bits of the first 32 VSX registers. The
ptrace FP read/write code assumes big endian ordering and grabs
the lowest 64 bits.

Fix this by using the TS_FPR macro which does the right thing.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/kernel/ptrace.c