Guys, trim your emails, please! On Wed, Feb 11, 2015 at 04:51:36PM +0100, Rafael J. Wysocki wrote: > On Wednesday, February 11, 2015 03:12:38 PM Mark Rutland wrote: > > I guess that would have to imply IRQF_SHARED, so we'd have something > > like: > > > > IRQF_SHARED_SUSPEND_OK - This handler is safe to call spuriously during > > suspend in the case the line is shared. The > > handler will not access unavailable hardware > > or kernel infrastructure during this period. > > > > #define __IRQF_SUSPEND_SPURIOUS 0x00040000 > > #define IRQF_SHARED_SUSPEND_OK (IRQF_SHARED | > > __IRQF_SUSPEND_SPURIOUS) > > What about > > #define __IRQF_TIMER_SIBLING_OK 0x00040000 > #define IRQF_SHARED_TIMER_OK (IRQF_SHARED | __IRQF_TIMER_SIBLING_OK) > > The "suspend" part is kind of a distraction to me here, because that really > only is about sharing an IRQ with a timer and the "your interrupt handler > may be called when the device is suspended" part is just a consequence of > that. > > So IMO it's better to have "TIMER" in the names to avoid encouraging people to > abuse this for other purposes not related to timers.
Sorry to be late to the bike-shed party, but what about: Documentation/power/suspend-and-interrupts.txt:the IRQ's users. For this reason, using IRQF_NO_SUSPEND and IRQF_SHARED at the arch/arm/mach-omap2/mux.c: omap_hwmod_mux_handle_irq, IRQF_SHARED | IRQF_NO_SUSPEND, arch/arm/mach-omap2/pm34xx.c: _prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io", drivers/mfd/ab8500-debugfs.c: IRQF_SHARED | IRQF_NO_SUSPEND, drivers/mfd/ab8500-gpadc.c: IRQF_NO_SUSPEND | IRQF_SHARED, "ab8500-gpadc-sw", drivers/mfd/ab8500-gpadc.c: IRQF_NO_SUSPEND | IRQF_SHARED, "ab8500-gpadc-hw", drivers/pinctrl/pinctrl-single.c: IRQF_SHARED | IRQF_NO_SUSPEND, drivers/power/ab8500_btemp.c: IRQF_SHARED | IRQF_NO_SUSPEND, drivers/power/ab8500_charger.c: IRQF_SHARED | IRQF_NO_SUSPEND, drivers/power/ab8500_fg.c: IRQF_SHARED | IRQF_NO_SUSPEND, drivers/rtc/rtc-pl031.c: .irqflags = IRQF_SHARED | IRQF_NO_SUSPEND, drivers/usb/phy/phy-ab8500-usb.c: IRQF_NO_SUSPEND | IRQF_SHARED, drivers/usb/phy/phy-ab8500-usb.c: IRQF_NO_SUSPEND | IRQF_SHARED, drivers/usb/phy/phy-ab8500-usb.c: IRQF_NO_SUSPEND | IRQF_SHARED, drivers/watchdog/intel-mid_wdt.c: IRQF_SHARED | IRQF_NO_SUSPEND, "watchdog", Is there a single legitimate user in that list? If so, the TIMER name might be misleading. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
