summaryrefslogtreecommitdiff
path: root/net/dccp/ccids/Kconfig
diff options
context:
space:
mode:
authorMichael Ellerman <mpe@ellerman.id.au>2017-01-24 16:36:57 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-01-25 13:36:10 +1100
commitb5fa0f7f88edcde37df1807fdf9ff10ec787a60e (patch)
tree3f0c8e6904907d51ccaf858963bb597970266d05 /net/dccp/ccids/Kconfig
parentf2574030b0e33263b8a1c28fa3c4fa9292283799 (diff)
powerpc: Fix build failure with clang due to BUILD_BUG_ON()
Anton says: In commit 4db7327194db ("powerpc: Add option to use jump label for cpu_has_feature()") and commit c12e6f24d413 ("powerpc: Add option to use jump label for mmu_has_feature()") we added: BUILD_BUG_ON(!__builtin_constant_p(feature)) to cpu_has_feature() and mmu_has_feature() in order to catch usage issues (such as cpu_has_feature(cpu_has_feature(X), which has happened once in the past). Unfortunately LLVM isn't smart enough to resolve this, and it errors out. I work around it in my clang/LLVM builds of the kernel, but I have just discovered that it causes a lot of issues for the bcc (eBPF) trace tool (which uses LLVM). For now just #ifdef it away for clang builds. Fixes: 4db7327194db ("powerpc: Add option to use jump label for cpu_has_feature()") Fixes: c12e6f24d413 ("powerpc: Add option to use jump label for mmu_has_feature()") Cc: stable@vger.kernel.org # v4.8+ Reported-by: Anton Blanchard <anton@samba.org> Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'net/dccp/ccids/Kconfig')
0 files changed, 0 insertions, 0 deletions