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-33e4358e4...@pengutronix.de/T/#mf24d7070d7e0c8f17b6be6ceb51df94b7d7613b3
Reviewed-by: Krzysztof Kozlowski <k...@kernel.org>
Acked-by: Andy Shevchenko <andy.shevche...@gmail.com>
Signed-off-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
---
Greg, could you pick this one up as well?
Change since v1:
* add two tags from developers bitten by the misleading text
lib/Kconfig.debug | 8 ++++----
1 file 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"
--
2.27.0
