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| author | YuanJunQing <yuanjunqing66@163.com> | 2020-05-27 14:11:30 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-20 10:24:18 +0200 |
| commit | cf4c788ecebbe11edf59f09e62893e49d1037874 (patch) | |
| tree | b146772a26fe67ecba6774c6b1f5b5b4c852f19e /arch/mips | |
| parent | 97aad0ad757b65300870b2ac7974fb761445ff44 (diff) | |
| download | linux-rt-cf4c788ecebbe11edf59f09e62893e49d1037874.tar.gz | |
MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe()
[ Upstream commit 31e1b3efa802f97a17628dde280006c4cee4ce5e ]
Register "a1" is unsaved in this function,
when CONFIG_TRACE_IRQFLAGS is enabled,
the TRACE_IRQS_OFF macro will call trace_hardirqs_off(),
and this may change register "a1".
The changed register "a1" as argument will be send
to do_fpe() and do_msa_fpe().
Signed-off-by: YuanJunQing <yuanjunqing66@163.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/kernel/genex.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index ae810da4d499..59ed811eb32a 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -429,20 +429,20 @@ NESTED(nmi_handler, PT_SIZE, sp) .endm .macro __build_clear_fpe + CLI + TRACE_IRQS_OFF .set push /* gas fails to assemble cfc1 for some archs (octeon).*/ \ .set mips1 SET_HARDFLOAT cfc1 a1, fcr31 .set pop - CLI - TRACE_IRQS_OFF .endm .macro __build_clear_msa_fpe - _cfcmsa a1, MSA_CSR CLI TRACE_IRQS_OFF + _cfcmsa a1, MSA_CSR .endm .macro __build_clear_ade |