Searched hist:ee6a129dffe10ae30b45b5a744e7c0a056291d13 (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/block/ |
| H A D | ioctl.c | diff ee6a129dffe10ae30b45b5a744e7c0a056291d13 Thu Nov 28 08:48:10 CST 2019 Arnd Bergmann <arnd@arndb.de> compat_ioctl: block: add blkdev_compat_ptr_ioctl
A lot of block drivers need only a trivial .compat_ioctl callback.
Add a helper function that can be set as the callback pointer
to only convert the argument using the compat_ptr() conversion
and otherwise assume all input and output data is compatible,
or handled using in_compat_syscall() checks.
This mirrors the compat_ptr_ioctl() helper function used in
character devices.
Reviewed-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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| /openbmc/linux/include/linux/ |
| H A D | blkdev.h | diff ee6a129dffe10ae30b45b5a744e7c0a056291d13 Thu Nov 28 08:48:10 CST 2019 Arnd Bergmann <arnd@arndb.de> compat_ioctl: block: add blkdev_compat_ptr_ioctl
A lot of block drivers need only a trivial .compat_ioctl callback.
Add a helper function that can be set as the callback pointer
to only convert the argument using the compat_ptr() conversion
and otherwise assume all input and output data is compatible,
or handled using in_compat_syscall() checks.
This mirrors the compat_ptr_ioctl() helper function used in
character devices.
Reviewed-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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