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| author |   Colin Cross <ccross@android.com> | 2012-11-07 18:21:51 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-11-13 13:04:43 -0800 |
| commit | d38e0e3fed4f58bcddef4dc93a591dfe2f651cb0 (patch) | |
| tree | b0833aef61a5101b95fce7fc0a8d61d93bec9fd5 /drivers/staging | |
| parent | Linux 3.7-rc5 (diff) | |
| download | linux-dev-d38e0e3fed4f58bcddef4dc93a591dfe2f651cb0.tar.xz linux-dev-d38e0e3fed4f58bcddef4dc93a591dfe2f651cb0.zip | |
Revert "Staging: Android alarm: IOCTL command encoding fix"
Commit 6bd4a5d96c08dc2380f8053b1bd4f879f55cd3c9 changed the
ANDROID_ALARM_GET_TIME ioctls from IOW to IOR. While technically
correct, the _IOC_DIR bits are ignored by alarm_ioctl, so the
commit breaks a userspace ABI used by all existing Android devices
for a purely cosmetic reason. Revert it.
Cc: stable <stable@vger.kernel.org>
Cc: Dae S. Kim <dae@velatum.com>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/android/android_alarm.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/staging/android/android_alarm.h b/drivers/staging/android/android_alarm.h index f2ffd963f1c3..d0cafd637199 100644 --- a/drivers/staging/android/android_alarm.h +++ b/drivers/staging/android/android_alarm.h @@ -51,12 +51,10 @@ enum android_alarm_return_flags { #define ANDROID_ALARM_WAIT _IO('a', 1) #define ALARM_IOW(c, type, size) _IOW('a', (c) | ((type) << 4), size) -#define ALARM_IOR(c, type, size) _IOR('a', (c) | ((type) << 4), size) - /* Set alarm */ #define ANDROID_ALARM_SET(type) ALARM_IOW(2, type, struct timespec) #define ANDROID_ALARM_SET_AND_WAIT(type) ALARM_IOW(3, type, struct timespec) -#define ANDROID_ALARM_GET_TIME(type) ALARM_IOR(4, type, struct timespec) +#define ANDROID_ALARM_GET_TIME(type) ALARM_IOW(4, type, struct timespec) #define ANDROID_ALARM_SET_RTC _IOW('a', 5, struct timespec) #define ANDROID_ALARM_BASE_CMD(cmd) (cmd & ~(_IOC(0, 0, 0xf0, 0))) #define ANDROID_ALARM_IOCTL_TO_TYPE(cmd) (_IOC_NR(cmd) >> 4) |