diff options
| author | Nathan Chancellor <natechancellor@gmail.com> | 2019-08-11 20:31:20 -0700 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2019-08-11 21:44:31 -0700 |
| commit | c59ae0a1055127dd3828a88e111a0db59b254104 (patch) | |
| tree | bac69ce4216487aedbaf33c04eb563ad35422118 /arch/mips/mm/tlbex.c | |
| parent | 077ff3be06e8de2657075dd2738b9a21f8ebd890 (diff) | |
MIPS: tlbex: Explicitly cast _PAGE_NO_EXEC to a boolean
clang warns:
arch/mips/mm/tlbex.c:634:19: error: use of logical '&&' with constant
operand [-Werror,-Wconstant-logical-operand]
if (cpu_has_rixi && _PAGE_NO_EXEC) {
^ ~~~~~~~~~~~~~
arch/mips/mm/tlbex.c:634:19: note: use '&' for a bitwise operation
if (cpu_has_rixi && _PAGE_NO_EXEC) {
^~
&
arch/mips/mm/tlbex.c:634:19: note: remove constant to silence this
warning
if (cpu_has_rixi && _PAGE_NO_EXEC) {
~^~~~~~~~~~~~~~~~
1 error generated.
Explicitly cast this value to a boolean so that clang understands we
intend for this to be a non-zero value.
Fixes: 00bf1c691d08 ("MIPS: tlbex: Avoid placing software PTE bits in Entry* PFN fields")
Link: https://github.com/ClangBuiltLinux/linux/issues/609
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: clang-built-linux@googlegroups.com
Diffstat (limited to 'arch/mips/mm/tlbex.c')
| -rw-r--r-- | arch/mips/mm/tlbex.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index eb21277f4141..071d48593464 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -629,7 +629,7 @@ static __maybe_unused void build_convert_pte_to_entrylo(u32 **p, return; } - if (cpu_has_rixi && _PAGE_NO_EXEC) { + if (cpu_has_rixi && !!_PAGE_NO_EXEC) { if (fill_includes_sw_bits) { UASM_i_ROTR(p, reg, reg, ilog2(_PAGE_GLOBAL)); } else { |