print_symbol() uses extra stack space to sprintf() symbol
information and then to feed that buffer to printk()
char buffer[KSYM_SYMBOL_LEN];
sprint_symbol(buffer, address);
printk(fmt, buffer);
Replace print_symbol() with a direct printk("%pS") call.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky at gmail.com>
Cc: Thomas Gleixner <tglx at linutronix.de>
---
kernel/irq/debug.h | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h
index 17f05ef8f575..5766e15c1160 100644
--- a/kernel/irq/debug.h
+++ b/kernel/irq/debug.h
@@ -3,8 +3,6 @@
* Debugging printout:
*/
-#include <linux/kallsyms.h>
-
#define ___P(f) if (desc->status_use_accessors & f) printk("%14s set\n", #f)
#define ___PS(f) if (desc->istate & f) printk("%14s set\n", #f)
/* FIXME */
@@ -15,13 +13,13 @@ static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
printk("->handle_irq(): %p, ", desc->handle_irq);
- print_symbol("%s\n", (unsigned long)desc->handle_irq);
+ pr_cont("%pS\n", desc->handle_irq);
printk("->irq_data.chip(): %p, ", desc->irq_data.chip);
- print_symbol("%s\n", (unsigned long)desc->irq_data.chip);
+ pr_cont("%pS\n", desc->irq_data.chip);
printk("->action(): %p\n", desc->action);
if (desc->action) {
printk("->action->handler(): %p, ", desc->action->handler);
- print_symbol("%s\n", (unsigned long)desc->action->handler);
+ pr_cont("%pS\n", desc->action->handler);
}
___P(IRQ_LEVEL);
--
2.15.1
