Remove the rtw_usleep_os helper function. There are only two callers, both of which call rtw_usleep_os(100). The original code would translate rtw_usleep_os(100) into msleep(1). Using msleep for < 20ms is not recommended. Replace the msleep calls with usleep_range, based on the explanations in Documentation/timers/timers-howto.rst. Signed-off-by: Martin Kaiser <martin@xxxxxxxxx> --- drivers/staging/r8188eu/core/rtw_pwrctrl.c | 2 +- drivers/staging/r8188eu/hal/rtl8188e_hal_init.c | 2 +- drivers/staging/r8188eu/include/osdep_service.h | 2 -- drivers/staging/r8188eu/os_dep/osdep_service.c | 8 -------- 4 files changed, 2 insertions(+), 12 deletions(-) diff --git a/drivers/staging/r8188eu/core/rtw_pwrctrl.c b/drivers/staging/r8188eu/core/rtw_pwrctrl.c index 7b816b824947..11fd05633529 100644 --- a/drivers/staging/r8188eu/core/rtw_pwrctrl.c +++ b/drivers/staging/r8188eu/core/rtw_pwrctrl.c @@ -266,7 +266,7 @@ static s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms) err = -1; break; } - rtw_usleep_os(100); + usleep_range(1000, 1200); } return err; diff --git a/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c index e17375a74f17..1aa7d01b67b1 100644 --- a/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c +++ b/drivers/staging/r8188eu/hal/rtl8188e_hal_init.c @@ -208,7 +208,7 @@ static void efuse_read_phymap_from_txpktbuf( rtw_write8(adapter, REG_TXPKTBUF_DBG, 0); timeout = jiffies + msecs_to_jiffies(1000); while (!rtw_read8(adapter, REG_TXPKTBUF_DBG) && time_before(jiffies, timeout)) - rtw_usleep_os(100); + usleep_range(1000, 1200); /* data from EEPROM needs to be in LE */ lo32 = cpu_to_le32(rtw_read32(adapter, REG_PKTBUF_DBG_DATA_L)); diff --git a/drivers/staging/r8188eu/include/osdep_service.h b/drivers/staging/r8188eu/include/osdep_service.h index f1a703643e74..e5fce24e5a33 100644 --- a/drivers/staging/r8188eu/include/osdep_service.h +++ b/drivers/staging/r8188eu/include/osdep_service.h @@ -77,8 +77,6 @@ void *rtw_malloc2d(int h, int w, int size); spin_lock_init(&((q)->lock)); \ } while (0) -void rtw_usleep_os(int us); - static inline unsigned char _cancel_timer_ex(struct timer_list *ptimer) { return del_timer_sync(ptimer); diff --git a/drivers/staging/r8188eu/os_dep/osdep_service.c b/drivers/staging/r8188eu/os_dep/osdep_service.c index 812acd59be79..3504a0a9ba87 100644 --- a/drivers/staging/r8188eu/os_dep/osdep_service.c +++ b/drivers/staging/r8188eu/os_dep/osdep_service.c @@ -42,14 +42,6 @@ Otherwise, there will be racing condition. Caller must check if the list is empty before calling rtw_list_delete */ -void rtw_usleep_os(int us) -{ - if (1 < (us / 1000)) - msleep(1); - else - msleep((us / 1000) + 1); -} - static const struct device_type wlan_type = { .name = "wlan", }; -- 2.30.2