diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2012-02-09 05:42:03 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-09 21:12:55 +0400 |
| commit | 86587b671bf87ed81d2d89cd1199af912402a05f (patch) | |
| tree | a4b45e66fdb5399a5082deadcf79f6a19ad0c346 /drivers/staging/rtl8712/rtl871x_pwrctrl.h | |
| parent | d8e4cd99d5a13f65fb961e627b63ae70ab0fe951 (diff) | |
| download | linux-86587b671bf87ed81d2d89cd1199af912402a05f.tar.xz | |
staging: r8712u: Simplify semaphores
I am preparing to convert this driver from semaphore to mutex locking,
The first step has been to eliminate a number of semaphores that were
initialized but never used, and one whose only use was a single "up"
after initialization. A total of 9 semaphores were removed in this process.
One other change was to remove some inline semaphore routines that were
unused.
In addition, several cases had the following structure:
down()
if () {
...
}
up()
The locking overhead was reduced by moving the up/down inside the if
block.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rtl8712/rtl871x_pwrctrl.h')
| -rw-r--r-- | drivers/staging/rtl8712/rtl871x_pwrctrl.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/staging/rtl8712/rtl871x_pwrctrl.h b/drivers/staging/rtl8712/rtl871x_pwrctrl.h index b41ca2892be5..6024c4f63d5b 100644 --- a/drivers/staging/rtl8712/rtl871x_pwrctrl.h +++ b/drivers/staging/rtl8712/rtl871x_pwrctrl.h @@ -133,7 +133,6 @@ struct pwrctrl_priv { u8 rpwm_retry; uint bSetPSModeWorkItemInProgress; - struct semaphore pnp_pwr_mgnt_sema; spinlock_t pnp_pwr_mgnt_lock; s32 pnp_current_pwr_state; u8 pnp_bstop_trx; |