Messages in this thread Patch in this message | | | From | Jiaxun Yang <> | Subject | [PATCH] MIPS: cpu-features: Use boot_cpu_type for CPU type based features | Date | Wed, 7 Jun 2023 13:51:22 +0800 |
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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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