| commit | 10d8b1480e6966ba03cd3afad3b5d6eb5e341fae | |
| author | pan xinhui <xinhui.pan@linux.vnet.ibm.com> | |
| Tue, 23 Feb 2016 11:05:01 +0000 (23 19:05 +0800) | ||
| committer | Michael Ellerman <mpe@ellerman.id.au> | |
| Wed, 24 Feb 2016 09:08:48 +0000 (24 20:08 +1100) | ||
| tree | 5ab67c34061bb141ec4a6e231ebfd01d4d08faef | treesnapshot (tar.gz zip) |
| parent | 289543a5c21a20ca88b803750a6cfe1a951eed5f | commitdiff |
powerpc: Use BUILD_BUG_ON_MSG() for unsupported {cmp}xchg sizes
__xchg_called_with_bad_pointer() can't tell us which code uses {cmp}xchg
with an unsupported size, and no error is reported until the link stage.
To make such problems easier to debug, use BUILD_BUG_ON_MSG() instead.
Signed-off-by: pan xinhui <xinhui.pan@linux.vnet.ibm.com>
[mpe: Tweak change log wording & add relaxed/acquire]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
fixup
__xchg_called_with_bad_pointer() can't tell us which code uses {cmp}xchg
with an unsupported size, and no error is reported until the link stage.
To make such problems easier to debug, use BUILD_BUG_ON_MSG() instead.
Signed-off-by: pan xinhui <xinhui.pan@linux.vnet.ibm.com>
[mpe: Tweak change log wording & add relaxed/acquire]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
fixup
| arch/powerpc/include/asm/cmpxchg.h | diffblobblamehistory |