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Subject[PATCH] MIPS: cpu-features: Use boot_cpu_type for CPU type based features
Date
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>
---
arch/mips/include/asm/cpu-features.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 2a0b90077b50..8c6d4a87db37 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -125,7 +125,7 @@
({ \
int __res; \
\
- switch (current_cpu_type()) { \
+ switch (boot_cpu_type()) { \
case CPU_CAVIUM_OCTEON: \
case CPU_CAVIUM_OCTEON_PLUS: \
case CPU_CAVIUM_OCTEON2: \
@@ -373,7 +373,7 @@
({ \
int __res; \
\
- switch (current_cpu_type()) { \
+ switch (boot_cpu_type()) { \
case CPU_M14KC: \
case CPU_74K: \
case CPU_1074K: \
--
2.39.2 (Apple Git-143)
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