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Date: Wed, 11 Mar 2020 21:36:02 +0530 From: afzal mohammed <afzal.mohd.ma@...il.com> To: Thomas Bogendoerfer <tsbogend@...ha.franken.de> Cc: Afzal Mohammed <afzal.mohd.ma@...il.com>, Nathan Chancellor <natechancellor@...il.com>, linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Ralf Baechle <ralf@...ux-mips.org>, Paul Burton <paulburton@...nel.org>, Florian Fainelli <f.fainelli@...il.com>, bcm-kernel-feedback-list@...adcom.com, "Maciej W. Rozycki" <macro@...ux-mips.org>, Jiaxun Yang <jiaxun.yang@...goat.com>, Keguang Zhang <keguang.zhang@...il.com>, Huacai Chen <chenhc@...ote.com>, John Crispin <john@...ozen.org> Subject: [PATCH] MIPS: pass non-NULL dev_id on shared request_irq() Recently all usages of setup_irq() was replaced by request_irq(). request_irq() does a few sanity checks that were not done in setup_irq(), if they fail irq registration will fail. One of the check is to ensure that non-NULL dev_id is passed in the case of shared irq. This caused malta on qemu to hang. Fix it by passing a dev_id to all request_irq()'s that are shared. Fixes: ac8fd122e070 ("MIPS: Replace setup_irq() by request_irq()") Reported-by: Nathan Chancellor <natechancellor@...il.com> Signed-off-by: afzal mohammed <afzal.mohd.ma@...il.com> --- [ resending since in the archives not seen, apologies if duplicate ] Hi Thomas, i am assuming your next tree is immutable, hence referring to the SHA-ID of the original commit in your tree. Else if you prefer a fixup'ed patch, let me know, i will send v5 with this fixup over v4. REgards afzal arch/mips/dec/setup.c | 2 +- arch/mips/kernel/cevt-r4k.c | 2 +- arch/mips/loongson2ef/lemote-2f/irq.c | 2 +- arch/mips/pmcs-msp71xx/msp_time.c | 2 +- arch/mips/sni/a20r.c | 2 +- arch/mips/sni/pcit.c | 4 ++-- arch/mips/sni/rm200.c | 4 ++-- 7 files changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c index c8bbac0c5051..cbbb27fbab19 100644 --- a/arch/mips/dec/setup.c +++ b/arch/mips/dec/setup.c @@ -758,7 +758,7 @@ void __init arch_init_irq(void) /* Register the bus error interrupt. */ if (dec_interrupt[DEC_IRQ_BUS] >= 0 && busirq_handler) { if (request_irq(dec_interrupt[DEC_IRQ_BUS], busirq_handler, - busirq_flags, "bus error", NULL)) + busirq_flags, "bus error", "bus error")) pr_err("Failed to register bus error interrupt\n"); } /* Register the HALT interrupt. */ diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c index 64e917dfe6b2..4b19810c67d4 100644 --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c @@ -292,7 +292,7 @@ int r4k_clockevent_init(void) cp0_timer_irq_installed = 1; - if (request_irq(irq, c0_compare_interrupt, flags, "timer", NULL)) + if (request_irq(irq, c0_compare_interrupt, flags, "timer", cd)) pr_err("Failed to request irq %d (timer)\n", irq); return 0; diff --git a/arch/mips/loongson2ef/lemote-2f/irq.c b/arch/mips/loongson2ef/lemote-2f/irq.c index 34e15e8b7a8f..1c99e83cabae 100644 --- a/arch/mips/loongson2ef/lemote-2f/irq.c +++ b/arch/mips/loongson2ef/lemote-2f/irq.c @@ -109,7 +109,7 @@ void __init mach_init_irq(void) /* setup north bridge irq (bonito) */ if (request_irq(LOONGSON_NORTH_BRIDGE_IRQ, ip6_action, - IRQF_SHARED | IRQF_NO_THREAD, "cascade", NULL)) + IRQF_SHARED | IRQF_NO_THREAD, "cascade", "cascade")) pr_err("Failed to register north bridge cascade interrupt\n"); /* setup source bridge irq (i8259) */ if (request_irq(LOONGSON_SOUTH_BRIDGE_IRQ, no_action, diff --git a/arch/mips/pmcs-msp71xx/msp_time.c b/arch/mips/pmcs-msp71xx/msp_time.c index baf0da8b4c98..0601a3f7f8f6 100644 --- a/arch/mips/pmcs-msp71xx/msp_time.c +++ b/arch/mips/pmcs-msp71xx/msp_time.c @@ -81,7 +81,7 @@ unsigned int get_c0_compare_int(void) /* MIPS_MT modes may want timer for second VPE */ if ((get_current_vpe()) && !tim_installed) { if (request_irq(MSP_INT_VPE1_TIMER, c0_compare_interrupt, flags, - "timer", NULL)) + "timer", "timer")) pr_err("Failed to register timer interrupt\n"); tim_installed++; } diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c index ba966d62fb4b..1bfea4aae124 100644 --- a/arch/mips/sni/a20r.c +++ b/arch/mips/sni/a20r.c @@ -223,7 +223,7 @@ void __init sni_a20r_irq_init(void) sni_hwint = a20r_hwint; change_c0_status(ST0_IM, IE_IRQ0); if (request_irq(SNI_A20R_IRQ_BASE + 3, sni_isa_irq_handler, - IRQF_SHARED, "ISA", NULL)) + IRQF_SHARED, "ISA", "ISA")) pr_err("Failed to register ISA interrupt\n"); } diff --git a/arch/mips/sni/pcit.c b/arch/mips/sni/pcit.c index 4a850ab03398..15080155cc9a 100644 --- a/arch/mips/sni/pcit.c +++ b/arch/mips/sni/pcit.c @@ -245,7 +245,7 @@ void __init sni_pcit_irq_init(void) sni_hwint = sni_pcit_hwint; change_c0_status(ST0_IM, IE_IRQ1); if (request_irq(SNI_PCIT_INT_START + 6, sni_isa_irq_handler, - IRQF_SHARED, "ISA", NULL)) + IRQF_SHARED, "ISA", "ISA")) pr_err("Failed to register ISA interrupt\n"); } @@ -260,7 +260,7 @@ void __init sni_pcit_cplus_irq_init(void) sni_hwint = sni_pcit_hwint_cplus; change_c0_status(ST0_IM, IE_IRQ0); if (request_irq(MIPS_CPU_IRQ_BASE + 3, sni_isa_irq_handler, - IRQF_SHARED, "ISA", NULL)) + IRQF_SHARED, "ISA", "ISA")) pr_err("Failed to register ISA interrupt\n"); } diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c index ba1f2fc6a43e..2b4a6448b428 100644 --- a/arch/mips/sni/rm200.c +++ b/arch/mips/sni/rm200.c @@ -473,10 +473,10 @@ void __init sni_rm200_irq_init(void) sni_hwint = sni_rm200_hwint; change_c0_status(ST0_IM, IE_IRQ0); if (request_irq(SNI_RM200_INT_START + 0, sni_rm200_i8259A_irq_handler, - IRQF_SHARED, "onboard ISA", NULL)) + IRQF_SHARED, "onboard ISA", "onboard ISA")) pr_err("Failed to register onboard ISA interrupt\n"); if (request_irq(SNI_RM200_INT_START + 1, sni_isa_irq_handler, - IRQF_SHARED, "ISA", NULL)) + IRQF_SHARED, "ISA", "ISA")) pr_err("Failed to register ISA interrupt\n"); } -- 2.18.0
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