From 0702bc4d2fe793018ad9aa0eb14bff7f526c4095 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Thu, 9 Aug 2018 10:59:01 +0200 Subject: irqchip/bcm7038-l1: Hide cpu offline callback when building for !SMP When compiling bmips with SMP disabled, the build fails with: drivers/irqchip/irq-bcm7038-l1.o: In function `bcm7038_l1_cpu_offline': drivers/irqchip/irq-bcm7038-l1.c:242: undefined reference to `irq_set_affinity_locked' make[5]: *** [vmlinux] Error 1 Fix this by adding and setting bcm7038_l1_cpu_offline only when actually compiling for SMP. It wouldn't have been used anyway, as it requires CPU_HOTPLUG, which in turn requires SMP. Fixes: 34c535793bcb ("irqchip/bcm7038-l1: Implement irq_cpu_offline() callback") Signed-off-by: Jonas Gorski Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-bcm7038-l1.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/irqchip') diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c index faf734ff4cf3..0f6e30e9009d 100644 --- a/drivers/irqchip/irq-bcm7038-l1.c +++ b/drivers/irqchip/irq-bcm7038-l1.c @@ -217,6 +217,7 @@ static int bcm7038_l1_set_affinity(struct irq_data *d, return 0; } +#ifdef CONFIG_SMP static void bcm7038_l1_cpu_offline(struct irq_data *d) { struct cpumask *mask = irq_data_get_affinity_mask(d); @@ -241,6 +242,7 @@ static void bcm7038_l1_cpu_offline(struct irq_data *d) } irq_set_affinity_locked(d, &new_affinity, false); } +#endif static int __init bcm7038_l1_init_one(struct device_node *dn, unsigned int idx, @@ -293,7 +295,9 @@ static struct irq_chip bcm7038_l1_irq_chip = { .irq_mask = bcm7038_l1_mask, .irq_unmask = bcm7038_l1_unmask, .irq_set_affinity = bcm7038_l1_set_affinity, +#ifdef CONFIG_SMP .irq_cpu_offline = bcm7038_l1_cpu_offline, +#endif }; static int bcm7038_l1_map(struct irq_domain *d, unsigned int virq, -- cgit v1.2.3 From 4096165d55218a6f58b6c2ebc5d2428aa0aa70e4 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 8 Aug 2018 15:03:19 +0300 Subject: irqchip/stm32: Fix init error handling If there are any errors in stm32_exti_host_init() then it leads to a NULL dereference in the callers. The function should clean up after itself. Fixes: f9fc1745501e ("irqchip/stm32: Add host and driver data structures") Reviewed-by: Ludovic Barre Signed-off-by: Dan Carpenter Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-stm32-exti.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'drivers/irqchip') diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 3a7e8905a97e..880e48947576 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -602,17 +602,24 @@ stm32_exti_host_data *stm32_exti_host_init(const struct stm32_exti_drv_data *dd, sizeof(struct stm32_exti_chip_data), GFP_KERNEL); if (!host_data->chips_data) - return NULL; + goto free_host_data; host_data->base = of_iomap(node, 0); if (!host_data->base) { pr_err("%pOF: Unable to map registers\n", node); - return NULL; + goto free_chips_data; } stm32_host_data = host_data; return host_data; + +free_chips_data: + kfree(host_data->chips_data); +free_host_data: + kfree(host_data); + + return NULL; } static struct @@ -664,10 +671,8 @@ static int __init stm32_exti_init(const struct stm32_exti_drv_data *drv_data, struct irq_domain *domain; host_data = stm32_exti_host_init(drv_data, node); - if (!host_data) { - ret = -ENOMEM; - goto out_free_mem; - } + if (!host_data) + return -ENOMEM; domain = irq_domain_add_linear(node, drv_data->bank_nr * IRQS_PER_BANK, &irq_exti_domain_ops, NULL); @@ -724,7 +729,6 @@ out_free_domain: irq_domain_remove(domain); out_unmap: iounmap(host_data->base); -out_free_mem: kfree(host_data->chips_data); kfree(host_data); return ret; @@ -751,10 +755,8 @@ __init stm32_exti_hierarchy_init(const struct stm32_exti_drv_data *drv_data, } host_data = stm32_exti_host_init(drv_data, node); - if (!host_data) { - ret = -ENOMEM; - goto out_free_mem; - } + if (!host_data) + return -ENOMEM; for (i = 0; i < drv_data->bank_nr; i++) stm32_exti_chip_init(host_data, i, node); @@ -776,7 +778,6 @@ __init stm32_exti_hierarchy_init(const struct stm32_exti_drv_data *drv_data, out_unmap: iounmap(host_data->base); -out_free_mem: kfree(host_data->chips_data); kfree(host_data); return ret; -- cgit v1.2.3 From f3b28362b683d8763e40ec9beee2f1d3bc616b8b Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Mon, 13 Aug 2018 17:11:44 +0200 Subject: irqchip/s3c24xx: Remove unneeded comparison of unsigned long to 0 irq_data->hwirq is unsigned long. This fixes GCC warning: drivers/irqchip/irq-s3c24xx.c: In function 's3c_irqext0_type': drivers/irqchip/irq-s3c24xx.c:253:19: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] if ((data->hwirq >= 0) && (data->hwirq <= 3)) { ^~ Signed-off-by: Krzysztof Kozlowski Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-s3c24xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/irqchip') diff --git a/drivers/irqchip/irq-s3c24xx.c b/drivers/irqchip/irq-s3c24xx.c index f6fd57ebe6e6..c19766fe8a1a 100644 --- a/drivers/irqchip/irq-s3c24xx.c +++ b/drivers/irqchip/irq-s3c24xx.c @@ -250,7 +250,7 @@ static int s3c_irqext0_type(struct irq_data *data, unsigned int type) void __iomem *gpcon_reg; unsigned long gpcon_offset, extint_offset; - if ((data->hwirq >= 0) && (data->hwirq <= 3)) { + if (data->hwirq <= 3) { gpcon_reg = S3C2410_GPFCON; extint_reg = S3C24XX_EXTINT0; gpcon_offset = (data->hwirq) * 2; -- cgit v1.2.3 From 44beda0c357f656e95febec8de7347015479295d Mon Sep 17 00:00:00 2001 From: Martin Kaiser Date: Fri, 17 Aug 2018 14:10:27 +0200 Subject: irqchip/tango: Set irq handler and data in one go Replace the two separate calls for setting the irq handler and data with a single irq_set_chained_handler_and_data() call. Signed-off-by: Martin Kaiser Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-tango.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/irqchip') diff --git a/drivers/irqchip/irq-tango.c b/drivers/irqchip/irq-tango.c index 0c085303a583..580e2d72b9ba 100644 --- a/drivers/irqchip/irq-tango.c +++ b/drivers/irqchip/irq-tango.c @@ -205,8 +205,7 @@ static int __init tangox_irq_init(void __iomem *base, struct resource *baseres, tangox_irq_domain_init(dom); - irq_set_chained_handler(irq, tangox_irq_handler); - irq_set_handler_data(irq, dom); + irq_set_chained_handler_and_data(irq, tangox_irq_handler, dom); return 0; } -- cgit v1.2.3 From 4110b5cbb014ebaaeb3d18ac8b98470b7251847d Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 17 Aug 2018 09:18:01 +0100 Subject: irqchip/gic-v3: Allow interrupt to be configured as wake-up sources Although GICv3 doesn't directly offers support for wake-up interrupts and relies on external HW for this, it shouldn't prevent the driver for such HW from doing it work. Let's set the required flags on the irq_chip structures. Reported-by: Lina Iyer Tested-by: Lina Iyer Reviewed-by: Sudeep Holla Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-gic-v3.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/irqchip') diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index e214181b77b7..d5912f1ec884 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -861,7 +861,9 @@ static struct irq_chip gic_chip = { .irq_set_affinity = gic_set_affinity, .irq_get_irqchip_state = gic_irq_get_irqchip_state, .irq_set_irqchip_state = gic_irq_set_irqchip_state, - .flags = IRQCHIP_SET_TYPE_MASKED, + .flags = IRQCHIP_SET_TYPE_MASKED | + IRQCHIP_SKIP_SET_WAKE | + IRQCHIP_MASK_ON_SUSPEND, }; static struct irq_chip gic_eoimode1_chip = { @@ -874,7 +876,9 @@ static struct irq_chip gic_eoimode1_chip = { .irq_get_irqchip_state = gic_irq_get_irqchip_state, .irq_set_irqchip_state = gic_irq_set_irqchip_state, .irq_set_vcpu_affinity = gic_irq_set_vcpu_affinity, - .flags = IRQCHIP_SET_TYPE_MASKED, + .flags = IRQCHIP_SET_TYPE_MASKED | + IRQCHIP_SKIP_SET_WAKE | + IRQCHIP_MASK_ON_SUSPEND, }; #define GIC_ID_NR (1U << GICD_TYPER_ID_BITS(gic_data.rdists.gicd_typer)) -- cgit v1.2.3