[riot-notifications] [RIOT-OS/RIOT] cpu/stm32/gpio: fix IRQ handler (#16272)

Juergen Fitschen notifications at github.com
Fri Apr 2 11:03:03 CEST 2021

Thanks for your review and responses!

> > @jue89 was this recently introduced or has this bug been forever present?
> In any case I think this should be backported no?

I've used the STM32F103RCT (which doesn't seem to be affected by this race condition even though the same pattern is used in the gpio_f1.c implementation) before I switched to the STM32F030CCT. So this seems to be a bug that has been introduced in 2016: https://github.com/RIOT-OS/RIOT/commit/df996044e2286ec0f5d24ada065520f98d03c2c5

So which releases should receive a backport?

Nevertheless - can this PR be merged? Is one ACK enough?

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