diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2025-06-20 13:10:41 +0200 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-07-04 16:32:15 +0100 |
| commit | 6c66bb655ca3fd5e9304163cf70796d08de512ed (patch) | |
| tree | 8f3a3acfb74c7f6923f23c2d7e4095fe9cf34279 | |
| parent | 0d1c86b840966a278d9b25a9d7c18881980f306e (diff) | |
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 <arnd@arndb.de>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20250620111045.3364827-1-arnd@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/smp.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; /* |