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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-19 07:52:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-19 07:52:48 -0800
commit7f2de8171ddf28fdb2ca7f9a683ee1207849f718 (patch)
treed89da981ac762de3fd32e1c08ddc8041f3c37519 /arch/sparc
parent59771079c18c44e39106f0f30054025acafadb41 (diff)
parentcf66bb93e0f75e0a4ba1ec070692618fa028e994 (diff)
downloadlinux-linaro-stable-7f2de8171ddf28fdb2ca7f9a683ee1207849f718.tar.gz
Merge tag 'byteswap-for-linus-20121219' of git://git.infradead.org/users/dwmw2/byteswap
Pull preparatory gcc intrisics bswap patch from David Woodhouse: "This single patch is effectively a no-op for now. It enables architectures to opt in to using GCC's __builtin_bswapXX() intrinsics for byteswapping, and if we merge this now then the architecture maintainers can enable it for their arch during the next cycle without dependency issues. It's worth making it a par-arch opt-in, because although in *theory* the compiler should never do worse than hand-coded assembler (and of course it also ought to do a lot better on platforms like Atom and PowerPC which have load-and-swap or store-and-swap instructions), that isn't always the case. See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46453 for example." * tag 'byteswap-for-linus-20121219' of git://git.infradead.org/users/dwmw2/byteswap: byteorder: allow arch to opt to use GCC intrinsics for byteswapping
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