From 8f99a162653531ef25a3dd0f92bfb6332cd2b295 Mon Sep 17 00:00:00 2001 From: Wu Zhangjin Date: Fri, 20 Nov 2009 20:34:33 +0800 Subject: MIPS: Tracing: Add IRQENTRY_EXIT section for MIPS This patch add a new section for MIPS to record the block of the hardirq handling for function graph tracer(print_graph_irq) via adding the __irq_entry annotation to the the entrypoints of the hardirqs(the block with irq_enter()...irq_exit()). Thanks goes to Steven & Frederic Weisbecker for their feedbacks. Signed-off-by: Wu Zhangjin Cc: Steven Rostedt Cc: Nicholas Mc Guire Cc: zhangfx@lemote.com Cc: Wu Zhangjin Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Frederic Weisbecker Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Reviewed-by: Frederic Weisbecker Patchwork: http://patchwork.linux-mips.org/patch/676/ Signed-off-by: Ralf Baechle --- arch/mips/sgi-ip22/ip22-time.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/mips/sgi-ip22/ip22-time.c') diff --git a/arch/mips/sgi-ip22/ip22-time.c b/arch/mips/sgi-ip22/ip22-time.c index c8f7d2328b2..603fc91c103 100644 --- a/arch/mips/sgi-ip22/ip22-time.c +++ b/arch/mips/sgi-ip22/ip22-time.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -115,7 +116,7 @@ __init void plat_time_init(void) } /* Generic SGI handler for (spurious) 8254 interrupts */ -void indy_8254timer_irq(void) +void __irq_entry indy_8254timer_irq(void) { int irq = SGI_8254_0_IRQ; ULONG cnt; -- cgit v1.2.3-70-g09d2