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author | Linus Walleij <linus.walleij@linaro.org> | 2015-08-25 08:54:12 (GMT) |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2015-10-02 11:19:32 (GMT) |
commit | 231d51b8a4d5b24e72112bbc73fdcc38759a26e3 (patch) | |
tree | f01c6b7c3fb8b477475c4ed4d917ad7d9d754088 /ipc | |
parent | 4843289e60e16bed00b7c3b910e67fb06214631a (diff) | |
download | linux-231d51b8a4d5b24e72112bbc73fdcc38759a26e3.tar.xz |
gpio: altera: use container_of() to get state container
The state container of the Altera GPIO driver is extracted from
the gpio_chip exploiting the fact that offsetof() the
struct gpio_chip inside the struct of_mm_gpio_chip are both 0, so
the container_of() is in practice a noop. However if a member
is added to struct altera_gpio_chip in front of
struct of_mm_gpio_chip, things will break. Using proper
container_of() avoids this problem.
Semantically this is a noop, the compiler will optimize it away,
but syntactically it makes me happier.
Cc: Tien Hock Loh <thloh@altera.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions