Re: [PATCH v2 01/11] mmc: core: Add helper function to indicate if SDIO IRQs is enabled

[Doug Anderson]

Hi,

On Sun, Sep 8, 2019 at 3:12 AM Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
>
> To avoid each host driver supporting SDIO IRQs, from keeping track
> internally about if SDIO IRQs has been claimed, let's introduce a common
> helper function, sdio_irq_claimed().
>
> The function returns true if SDIO IRQs are claimed, via using the
> information about the number of claimed irqs. This is safe, even without
> any locks, as long as the helper function is called only from
> runtime/system suspend callbacks of the host driver.
>
> Tested-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
> Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> ---
>
> Changes in v2:
>         - Renamed function to sdio_irq_claimed().
>
> ---
>  include/linux/mmc/host.h | 9 +++++++++
>  1 file changed, 9 insertions(+)

Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>