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| author |   Lukas Wunner <lukas@wunner.de> | 2019-02-03 09:27:00 +0100 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2019-02-25 08:40:58 +0100 |
| commit | c58ccf2b6de7d52994f9bb93227dfabf8077de24 (patch) | |
| tree | dde415f6e1e29f1d00045b9877506d0fb4d3af4d /include/linux/mmc | |
| parent | mmc: bcm2835: Drop DMA channel error pointer check (diff) | |
| download | linux-dev-c58ccf2b6de7d52994f9bb93227dfabf8077de24.tar.xz linux-dev-c58ccf2b6de7d52994f9bb93227dfabf8077de24.zip | |
mmc: bcm2835: Drop pointer to mmc_host from bcm2835_host
The BCM2835 MMC host driver uses a pointer to get from the private
bcm2835_host structure to the generic mmc_host structure. However the
latter is always immediately preceding the former in memory, so compute
its address with a subtraction (which is cheaper than a dereference) and
drop the superfluous pointer.
No functional change intended.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Frank Pavlic <f.pavlic@kunbus.de>
Cc: Alexander Graf <agraf@suse.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/host.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 4d35ff36ceff..d893902b2f1c 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -478,6 +478,11 @@ static inline void *mmc_priv(struct mmc_host *host) return (void *)host->private; } +static inline struct mmc_host *mmc_from_priv(void *priv) +{ + return container_of(priv, struct mmc_host, private); +} + #define mmc_host_is_spi(host) ((host)->caps & MMC_CAP_SPI) #define mmc_dev(x) ((x)->parent) |