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authorDavid Howells <dhowells@redhat.com>2013-03-13 22:59:47 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-03-13 23:21:49 +0100
commitca044f9a9ed492f0f7e52df999c10ca6f7cfc5c0 (patch)
tree0693ff6fd14f52d164a98d593ee1dcf639cff5fc /arch
parentUAPI: fix endianness conditionals in linux/acct.h (diff)
downloadlinux-ca044f9a9ed492f0f7e52df999c10ca6f7cfc5c0.tar.xz
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UAPI: fix endianness conditionals in linux/raid/md_p.h
In the UAPI header files, __BIG_ENDIAN and __LITTLE_ENDIAN must be compared against __BYTE_ORDER in preprocessor conditionals where these are exposed to userspace (that is they're not inside __KERNEL__ conditionals). However, in the main kernel the norm is to check for "defined(__XXX_ENDIAN)" rather than comparing against __BYTE_ORDER and this has incorrectly leaked into the userspace headers. The definition of struct mdp_superblock_s in linux/raid/md_p.h is wrong in this way. Note that userspace will likely interpret the ordering of the fields incorrectly as the big-endian variant on a little-endian machines - depending on header inclusion order. [!!!] NOTE [!!!] This patch may adversely change the userspace API. It might be better to fix the ordering of events_hi, events_lo, cp_events_hi and cp_events_lo in struct mdp_superblock_s / typedef mdp_super_t. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions