diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2019-06-03 15:23:09 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2019-10-23 18:23:46 +0300 |
| commit | b6dfb2477fb0bf48e31999d306d2552144891f6e (patch) | |
| tree | 885f697cc31b700310c1b9aed6b3d4100f474387 /drivers/watchdog/advantechwdt.c | |
| parent | 314999dcbca75c3ca8aaba102875d51ab409cf87 (diff) | |
| download | linux-b6dfb2477fb0bf48e31999d306d2552144891f6e.tar.xz | |
compat_ioctl: move WDIOC handling into wdt drivers
All watchdog drivers implement the same set of ioctl commands, and
fortunately all of them are compatible between 32-bit and 64-bit
architectures.
Modern drivers always go through drivers/watchdog/wdt.c as an abstraction
layer, but older ones implement their own file_operations on a character
device for this.
Move the handling from fs/compat_ioctl.c into the individual drivers.
Note that most of the legacy drivers will never be used on 64-bit
hardware, because they are for an old 32-bit SoC implementation, but
doing them all at once is safer than trying to guess which ones do
or do not need the compat_ioctl handling.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/watchdog/advantechwdt.c')
| -rw-r--r-- | drivers/watchdog/advantechwdt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c index 0d02bb275b3d..0e4c18a2aa42 100644 --- a/drivers/watchdog/advantechwdt.c +++ b/drivers/watchdog/advantechwdt.c @@ -220,6 +220,7 @@ static const struct file_operations advwdt_fops = { .llseek = no_llseek, .write = advwdt_write, .unlocked_ioctl = advwdt_ioctl, + .compat_ioctl = compat_ptr_ioctl, .open = advwdt_open, .release = advwdt_close, }; |