6.7-stable review patch. If anyone has any objections, please let me know.
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From: Huang Shijie shijie@os.amperecomputing.com
commit 7b1a09e44dc64f4f5930659b6d14a27183c00705 upstream.
The init_irq_stacks() has been changed to use the correct node: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/commit/?id=7...
The init_irq_scs() has the same issue with init_irq_stacks(): cpu_to_node() is not initialized yet, it does not work.
This patch uses early_cpu_to_node() to set the init_irq_scs() with the correct node.
Signed-off-by: Huang Shijie shijie@os.amperecomputing.com Reviewed-by: Catalin Marinas catalin.marinas@arm.com Link: https://lore.kernel.org/r/20231213012046.12014-1-shijie@os.amperecomputing.c... Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/kernel/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/kernel/irq.c +++ b/arch/arm64/kernel/irq.c @@ -48,7 +48,7 @@ static void init_irq_scs(void)
for_each_possible_cpu(cpu) per_cpu(irq_shadow_call_stack_ptr, cpu) = - scs_alloc(cpu_to_node(cpu)); + scs_alloc(early_cpu_to_node(cpu)); }
#ifdef CONFIG_VMAP_STACK