Searched hist:"04 c848d398797a626608ff48804d809ae6687163" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/kernel/irq/ |
| H A D | chip.c | diff 04c848d398797a626608ff48804d809ae6687163 Wed May 31 04:58:33 CDT 2017 Thomas Gleixner <tglx@linutronix.de> genirq: Warn when IRQ_NOAUTOEN is used with shared interrupts
Shared interrupts do not go well with disabling auto enable:
1) The sharing interrupt might request it while it's still disabled and
then wait for interrupts forever.
2) The interrupt might have been requested by the driver sharing the line
before IRQ_NOAUTOEN has been set. So the driver which expects that
disabled state after calling request_irq() will not get what it wants.
Even worse, when it calls enable_irq() later, it will trigger the
unbalanced enable_irq() warning.
Reported-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: dianders@chromium.org
Cc: jeffy <jeffy.chen@rock-chips.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: tfiga@chromium.org
Link: http://lkml.kernel.org/r/20170531100212.210682135@linutronix.de
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| H A D | manage.c | diff 04c848d398797a626608ff48804d809ae6687163 Wed May 31 04:58:33 CDT 2017 Thomas Gleixner <tglx@linutronix.de> genirq: Warn when IRQ_NOAUTOEN is used with shared interrupts
Shared interrupts do not go well with disabling auto enable:
1) The sharing interrupt might request it while it's still disabled and
then wait for interrupts forever.
2) The interrupt might have been requested by the driver sharing the line
before IRQ_NOAUTOEN has been set. So the driver which expects that
disabled state after calling request_irq() will not get what it wants.
Even worse, when it calls enable_irq() later, it will trigger the
unbalanced enable_irq() warning.
Reported-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: dianders@chromium.org
Cc: jeffy <jeffy.chen@rock-chips.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: tfiga@chromium.org
Link: http://lkml.kernel.org/r/20170531100212.210682135@linutronix.de
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