From e253eb0c082e71082cc980a0c81582c2bc734605 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Wed, 7 Mar 2007 14:57:35 -0800 Subject: [PATCH] [IA64] fix NULL pointer in ia64/irq_chip-mask/unmask function This patch fixes boot failure because irq_desc->mask() is NULL. - Added mask/unmask functions to ia64's irq desc function table. - rename hw_interrupt_type to irq_chip. hw_interrupt_type is old name. - Tony: Added same change to arch/ia64/sn/kernel/irq.c as pointed out by Eric Biederman ... mask/unmask functions there can be no-op. Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/kernel/iosapic.c | 8 ++++++-- arch/ia64/sn/kernel/irq.c | 14 +++++++++++++- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c index d6aab40c6416..dcfbf3e7a9ef 100644 --- a/arch/ia64/kernel/iosapic.c +++ b/arch/ia64/kernel/iosapic.c @@ -446,7 +446,7 @@ iosapic_end_level_irq (unsigned int irq) #define iosapic_disable_level_irq mask_irq #define iosapic_ack_level_irq nop -struct hw_interrupt_type irq_type_iosapic_level = { +struct irq_chip irq_type_iosapic_level = { .name = "IO-SAPIC-level", .startup = iosapic_startup_level_irq, .shutdown = iosapic_shutdown_level_irq, @@ -454,6 +454,8 @@ struct hw_interrupt_type irq_type_iosapic_level = { .disable = iosapic_disable_level_irq, .ack = iosapic_ack_level_irq, .end = iosapic_end_level_irq, + .mask = mask_irq, + .unmask = unmask_irq, .set_affinity = iosapic_set_affinity }; @@ -493,7 +495,7 @@ iosapic_ack_edge_irq (unsigned int irq) #define iosapic_disable_edge_irq nop #define iosapic_end_edge_irq nop -struct hw_interrupt_type irq_type_iosapic_edge = { +struct irq_chip irq_type_iosapic_edge = { .name = "IO-SAPIC-edge", .startup = iosapic_startup_edge_irq, .shutdown = iosapic_disable_edge_irq, @@ -501,6 +503,8 @@ struct hw_interrupt_type irq_type_iosapic_edge = { .disable = iosapic_disable_edge_irq, .ack = iosapic_ack_edge_irq, .end = iosapic_end_edge_irq, + .mask = mask_irq, + .unmask = unmask_irq, .set_affinity = iosapic_set_affinity }; diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c index 8c5bee01eaa2..8d2a1bfbfe7c 100644 --- a/arch/ia64/sn/kernel/irq.c +++ b/arch/ia64/sn/kernel/irq.c @@ -205,7 +205,17 @@ static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask) (void)sn_retarget_vector(sn_irq_info, nasid, slice); } -struct hw_interrupt_type irq_type_sn = { +static void +sn_mask_irq(unsigned int irq) +{ +} + +static void +sn_unmask_irq(unsigned int irq) +{ +} + +struct irq_chip irq_type_sn = { .name = "SN hub", .startup = sn_startup_irq, .shutdown = sn_shutdown_irq, @@ -213,6 +223,8 @@ struct hw_interrupt_type irq_type_sn = { .disable = sn_disable_irq, .ack = sn_ack_irq, .end = sn_end_irq, + .mask = sn_mask_irq, + .unmask = sn_unmask_irq, .set_affinity = sn_set_affinity_irq }; -- 2.20.1