diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2019-08-19 22:36:09 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-08-20 00:19:06 +0300 |
| commit | d6f83427ff422b3a65e4a6bd84c010f78d4a30a5 (patch) | |
| tree | 7fbc5551c470302423c7ca6dfe7bc17a7233d988 /arch/x86/kernel/irq_32.c | |
| parent | e30c44e2e59c98023997632815cbc5e273991c25 (diff) | |
| download | linux-d6f83427ff422b3a65e4a6bd84c010f78d4a30a5.tar.xz | |
x86/irq: Move IS_ERR_OR_NULL() check into common do_IRQ() code
Both the 64bit and the 32bit handle_irq() implementation check the irq
descriptor pointer with IS_ERR_OR_NULL() and return failure. That can be
done simpler in the common do_IRQ() code.
This reduces the 64bit handle_irq() function to a wrapper around
generic_handle_irq_desc(). Invoke it directly from do_IRQ() to spare the
extra function call.
[ tglx: Got rid of the #ifdef and massaged changelog ]
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/2ec758c7-9aaa-73ab-f083-cc44c86aa741@gmail.com
Diffstat (limited to 'arch/x86/kernel/irq_32.c')
| -rw-r--r-- | arch/x86/kernel/irq_32.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c index fc34816c6f04..a759ca97cd01 100644 --- a/arch/x86/kernel/irq_32.c +++ b/arch/x86/kernel/irq_32.c @@ -148,18 +148,13 @@ void do_softirq_own_stack(void) call_on_stack(__do_softirq, isp); } -bool handle_irq(struct irq_desc *desc, struct pt_regs *regs) +void handle_irq(struct irq_desc *desc, struct pt_regs *regs) { int overflow = check_stack_overflow(); - if (IS_ERR_OR_NULL(desc)) - return false; - if (user_mode(regs) || !execute_on_irq_stack(overflow, desc)) { if (unlikely(overflow)) print_stack_overflow(); generic_handle_irq_desc(desc); } - - return true; } |