linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2015-09-16	genirq: Remove irq argument from irq flow handlers	Thomas Gleixner	1	-1/+1
	Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-07-11	irqchip/metag: Consolidate chained IRQ handler install/remove	Thomas Gleixner	1	-2/+1
	Chained irq handlers usually set up handler data as well. We now have a function to set both under irq_desc->lock. Replace the two calls with one. Search and conversion was done with coccinelle: @@ expression E1, E2, E3; @@ ( -if (irq_set_handler_data(E1, E2) != 0) - BUG(); \| -irq_set_handler_data(E1, E2); ) -irq_set_chained_handler(E1, E3); +irq_set_chained_handler_and_data(E1, E3, E2); @@ expression E1, E2, E3; @@ ( -if (irq_set_handler_data(E1, E2) != 0) - BUG(); ... \| -irq_set_handler_data(E1, E2); ... ) -irq_set_chained_handler(E1, E3); +irq_set_chained_handler_and_data(E1, E3, E2); Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: James Hogan <james.hogan@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: linux-metag@vger.kernel.org
2014-02-25	irq-metag*: stop set_affinity vectoring to offline cpus	James Hogan	1	-1/+1
	Fix irq_set_affinity callbacks in the Meta IRQ chip drivers to AND cpu_online_mask into the cpumask when picking a CPU to vector the interrupt to. As Thomas pointed out, the /proc/irq/$N/smp_affinity interface doesn't filter out offline CPUs, so without this patch if you offline CPU0 and set an IRQ affinity to 0x3 it vectors the interrupt onto CPU0 even though it is offline. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-metag@vger.kernel.org Cc: stable@vger.kernel.org
2013-03-02	metag: Internal and external irqchips	James Hogan	1	-0/+343
	Meta core internal interrupts (from HWSTATMETA and friends) are vectored onto the TR1 core trigger for the current thread. This is demultiplexed in irq-metag.c to individual Linux IRQs for each internal interrupt. External SoC interrupts (from HWSTATEXT and friends) are vectored onto the TR2 core trigger for the current thread. This is demultiplexed in irq-metag-ext.c to individual Linux IRQs for each external SoC interrupt. The external irqchip has devicetree bindings for configuring the number of irq banks and the type of masking available. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Cc: Dom Cobley <popcornmix@gmail.com> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-doc@vger.kernel.org