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| author | Catalin Marinas <catalin.marinas@arm.com> | 2019-10-28 09:08:34 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2019-10-28 09:13:21 +0000 |
| commit | 27a22fbdeedd6c5c451cf5f830d51782bf50c3a2 (patch) | |
| tree | 6cd5f814cce7fc2dc9a65d9b465d693f54aee15d /arch/arm64/kernel/sys_compat.c | |
| parent | 222fc0c8503d98cec3cb2bac2780cdd21a6e31c0 (diff) | |
| download | lwn-27a22fbdeedd6c5c451cf5f830d51782bf50c3a2.tar.gz lwn-27a22fbdeedd6c5c451cf5f830d51782bf50c3a2.zip | |
arm64: Silence clang warning on mismatched value/register sizes
Clang reports a warning on the __tlbi(aside1is, 0) macro expansion since
the value size does not match the register size specified in the inline
asm. Construct the ASID value using the __TLBI_VADDR() macro.
Fixes: 222fc0c8503d ("arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space")
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/sys_compat.c')
| -rw-r--r-- | arch/arm64/kernel/sys_compat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/sys_compat.c b/arch/arm64/kernel/sys_compat.c index c9fb02927d3e..3c18c2454089 100644 --- a/arch/arm64/kernel/sys_compat.c +++ b/arch/arm64/kernel/sys_compat.c @@ -37,7 +37,7 @@ __do_compat_cache_op(unsigned long start, unsigned long end) * The workaround requires an inner-shareable tlbi. * We pick the reserved-ASID to minimise the impact. */ - __tlbi(aside1is, 0); + __tlbi(aside1is, __TLBI_VADDR(0, 0)); dsb(ish); } |