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authorChristophe Leroy <christophe.leroy@c-s.fr>2020-02-20 14:51:40 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2020-03-04 14:44:29 +0300
commit0dec6e1cca7eee6d5616f982efab2ff3b3ea1f9f (patch)
treec02da5c0b3b6c0e0d1458f9369235d3ceb5bd097 /arch/powerpc/kernel/irq.c
parent84ab14893054751a2b3adba725834183b872a17f (diff)
downloadlinux-0dec6e1cca7eee6d5616f982efab2ff3b3ea1f9f.tar.xz
powerpc/irq: use IS_ENABLED() in check_stack_overflow()
Instead of #ifdef, use IS_ENABLED(CONFIG_DEBUG_STACKOVERFLOW). This enable GCC to check for code validity even when the option is not selected. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200220115141.2707-4-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc/kernel/irq.c')
-rw-r--r--arch/powerpc/kernel/irq.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index c7d6f5cdffdb..46d5852fb00a 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -599,9 +599,11 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
static inline void check_stack_overflow(void)
{
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
long sp;
+ if (!IS_ENABLED(CONFIG_DEBUG_STACKOVERFLOW))
+ return;
+
sp = current_stack_pointer & (THREAD_SIZE - 1);
/* check for stack overflow: is there less than 2KB free? */
@@ -609,7 +611,6 @@ static inline void check_stack_overflow(void)
pr_err("do_IRQ: stack overflow: %ld\n", sp);
dump_stack();
}
-#endif
}
void __do_irq(struct pt_regs *regs)