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authorDavid Gibson <david@gibson.dropbear.id.au>2015-02-03 16:36:21 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2015-03-23 14:29:40 +1100
commitf5718726714cd6114876c4e3ca9b6992ab81176c (patch)
treec8cfe34ac28b22e89e8f5aac01c615ac61fbb221 /MAINTAINERS
parentLinux 4.0-rc3 (diff)
downloadlinux-dev-f5718726714cd6114876c4e3ca9b6992ab81176c.tar.xz
linux-dev-f5718726714cd6114876c4e3ca9b6992ab81176c.zip
powerpc: Move Power Macintosh drivers to generic byteswappers
ppc has special instruction forms to efficiently load and store values in non-native endianness. These can be accessed via the arch-specific {ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h. However, gcc is perfectly capable of generating the byte-reversing load/store instructions when using the normal, generic cpu_to_le*() and le*_to_cpu() functions eaning the arch-specific functions don't have much point. Worse the "le" in the names of the arch specific functions is now misleading, because they always generate byte-reversing forms, but some ppc machines can now run a little-endian kernel. To start getting rid of the arch-specific forms, this patch removes them from all the old Power Macintosh drivers, replacing them with the generic byteswappers. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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