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MIPS: cpu-features: Use boot_cpu_type for CPU type based features

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[ Upstream commit 5487a7b606 ]

Some CPU feature macros were using current_cpu_type to mark feature
availability.

However current_cpu_type will use smp_processor_id, which is prohibited
under preemptable context.

Since those features are all uniform on all CPUs in a SMP system, use
boot_cpu_type instead of current_cpu_type to fix preemptable kernel.

Cc: stable@vger.kernel.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiaxun Yang 2023-06-07 13:51:22 +08:00 • committed by Justin Hammond
parent 6f3f42d10f
commit a44e7f8fd6
1 changed files with 2 additions and 2 deletions
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4
arch/mips/include/asm/cpu-features.h
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@ -128,7 +128,7 @@
({ \
int __res; \
\
switch (current_cpu_type()) { \
switch (boot_cpu_type()) { \
case CPU_CAVIUM_OCTEON: \
case CPU_CAVIUM_OCTEON_PLUS: \
case CPU_CAVIUM_OCTEON2: \
@ -368,7 +368,7 @@
({ \
int __res; \
\
switch (current_cpu_type()) { \
switch (boot_cpu_type()) { \
case CPU_M14KC: \
case CPU_74K: \
case CPU_1074K: \