From: Arnd Bergmann Date: Fri, 20 Jun 2025 11:10:41 +0000 (+0200) Subject: arm64: move smp_send_stop() cpu mask off stack X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=6c66bb655ca3fd5e9304163cf70796d08de512ed;p=linux-block.git arm64: move smp_send_stop() cpu mask off stack For really large values of CONFIG_NR_CPUS, a CPU mask value should not be put on the stack: arch/arm64/kernel/smp.c:1188:1: error: the frame size of 8544 bytes is larger than 1536 bytes [-Werror=frame-larger-than=] This could be achieved using alloc_cpumask_var(), which makes it depend on CONFIG_CPUMASK_OFFSTACK, but as this function is already serialized and can only run on one CPU, making the variable 'static' is easier. Signed-off-by: Arnd Bergmann Reviewed-by: Catalin Marinas Link: https://lore.kernel.org/r/20250620111045.3364827-1-arnd@kernel.org Signed-off-by: Will Deacon --- diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 3b3f6b56e733..21a795303568 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -1143,7 +1143,7 @@ static inline unsigned int num_other_online_cpus(void) void smp_send_stop(void) { static unsigned long stop_in_progress; - cpumask_t mask; + static cpumask_t mask; unsigned long timeout; /*