diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2017-08-28 08:47:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-29 11:42:25 +0200 |
| commit | 8a17116b1fddc1f414cd4dd5e86fa239fcdb5208 (patch) | |
| tree | 4ca51f3e55272cee799bcd81a383b6765f72a0e1 | |
| parent | 3bec6def39e32609e01a68b43476ee1f1c512eaa (diff) | |
x86/irq: Get rid of duplicated trace_x86_platform_ipi() code
Two NOP5s are really a good tradeoff vs. the unholy IDT switching mess,
which duplicates code all over the place.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20170828064956.907209383@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/include/asm/hw_irq.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/irq.c | 25 |
2 files changed, 6 insertions, 21 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index 44137bb12136..a7e45d1707b7 100644 --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -48,7 +48,6 @@ extern asmlinkage void call_function_single_interrupt(void); #ifdef CONFIG_TRACING /* Interrupt handlers registered during init_IRQ */ -extern void trace_x86_platform_ipi(void); extern void trace_error_interrupt(void); extern void trace_irq_work_interrupt(void); extern void trace_spurious_interrupt(void); @@ -58,6 +57,7 @@ extern void trace_threshold_interrupt(void); extern void trace_deferred_error_interrupt(void); extern void trace_call_function_interrupt(void); extern void trace_call_function_single_interrupt(void); +#define trace_x86_platform_ipi x86_platform_ipi #define trace_apic_timer_interrupt apic_timer_interrupt #define trace_irq_move_cleanup_interrupt irq_move_cleanup_interrupt #define trace_reboot_interrupt reboot_interrupt diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 019d0ac8ed3a..befdd4a54ecc 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -262,20 +262,16 @@ __visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs) /* * Handler for X86_PLATFORM_IPI_VECTOR. */ -void __smp_x86_platform_ipi(void) -{ - inc_irq_stat(x86_platform_ipis); - - if (x86_platform_ipi_callback) - x86_platform_ipi_callback(); -} - __visible void __irq_entry smp_x86_platform_ipi(struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); entering_ack_irq(); - __smp_x86_platform_ipi(); + trace_x86_platform_ipi_entry(X86_PLATFORM_IPI_VECTOR); + inc_irq_stat(x86_platform_ipis); + if (x86_platform_ipi_callback) + x86_platform_ipi_callback(); + trace_x86_platform_ipi_exit(X86_PLATFORM_IPI_VECTOR); exiting_irq(); set_irq_regs(old_regs); } @@ -334,17 +330,6 @@ __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs) } #endif -__visible void __irq_entry smp_trace_x86_platform_ipi(struct pt_regs *regs) -{ - struct pt_regs *old_regs = set_irq_regs(regs); - - entering_ack_irq(); - trace_x86_platform_ipi_entry(X86_PLATFORM_IPI_VECTOR); - __smp_x86_platform_ipi(); - trace_x86_platform_ipi_exit(X86_PLATFORM_IPI_VECTOR); - exiting_irq(); - set_irq_regs(old_regs); -} #ifdef CONFIG_HOTPLUG_CPU |