summaryrefslogtreecommitdiff
path: root/lib
diff options
context:
space:
mode:
authorWolfram Sang <wsa+renesas@sang-engineering.com>2020-07-03 00:20:24 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-03 09:27:05 +0200
commit0a2fae2aea4a21b59d4a920b9765aaa696270b16 (patch)
tree106b389c26cae57786496ac698b7c64bea41a629 /lib
parent2fce60be06ca68b0b97b88b9ceb52ff102b0ea78 (diff)
lib: update DEBUG_SHIRQ docs to match reality
There is no extra interrupt when registering a shared interrupt handler since 2011. Update the Kconfig text to make it clear and to avoid wrong assumptions when debugging issues found by it. Fixes: 6d83f94db95c ("genirq: Disable the SHIRQ_DEBUG call in request_threaded_irq for now") Link: https://lore.kernel.org/linux-i2c/859e8211-2c56-8dd5-d6fb-33e4358e4128@pengutronix.de/T/#mf24d7070d7e0c8f17b6be6ceb51df94b7d7613b3 Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20200702222024.6915-1-wsa+renesas@sang-engineering.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug8
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 9ad9210d70a1..2bff6315224d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -844,10 +844,10 @@ config DEBUG_SHIRQ
bool "Debug shared IRQ handlers"
depends on DEBUG_KERNEL
help
- Enable this to generate a spurious interrupt as soon as a shared
- interrupt handler is registered, and just before one is deregistered.
- Drivers ought to be able to handle interrupts coming in at those
- points; some don't and need to be caught.
+ Enable this to generate a spurious interrupt just before a shared
+ interrupt handler is deregistered (generating one when registering
+ is currently disabled). Drivers need to handle this correctly. Some
+ don't and need to be caught.
menu "Debug Oops, Lockups and Hangs"