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| author | Thomas Weißschuh <linux@weissschuh.net> | 2025-01-25 10:28:38 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-08 09:58:06 +0100 |
| commit | 3e44707da8db9e285e2a6a0574683ad0264cecf1 (patch) | |
| tree | 0e3b24c1cbb313e75ba8417e6b9d8352f7e84100 /include/linux | |
| parent | 5a54367a7c2378c65aaa4d3cfd952f26adef7aa7 (diff) | |
| download | linux-3e44707da8db9e285e2a6a0574683ad0264cecf1.tar.gz linux-3e44707da8db9e285e2a6a0574683ad0264cecf1.tar.bz2 linux-3e44707da8db9e285e2a6a0574683ad0264cecf1.zip | |
ptp: Properly handle compat ioctls
[ Upstream commit 19ae40f572a9ce1ade9954990af709a03fd37010 ]
Pointer arguments passed to ioctls need to pass through compat_ptr() to
work correctly on s390; as explained in Documentation/driver-api/ioctl.rst.
Detect compat mode at runtime and call compat_ptr() for those commands
which do take pointer arguments.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/lkml/1ba5d3a4-7931-455b-a3ce-85a968a7cb10@app.fastmail.com/
Fixes: d94ba80ebbea ("ptp: Added a brand new class driver for ptp clocks.")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://patch.msgid.link/20250125-posix-clock-compat_ioctl-v2-1-11c865c500eb@weissschuh.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions