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rf_lock is used to protect RF register access, but they will not called from interrupt context, so *_irqsave version isn't necessary. Then, these delays don't affect IRQ services. The old code holds spin_lock_irqsave() that will be detected a long delay as below: kworker/-276 4d... 0us : _raw_spin_lock_irqsave kworker/-276 4d... 0us : rtl8723_phy_rf_serial_read <-rtl8723de_phy_set_rf_reg kworker/-276 4d... 1us : rtl8723_phy_query_bb_reg <-rtl8723_phy_rf_serial_read kworker/-276 4d... 3us : rtl8723_phy_set_bb_reg <-rtl8723_phy_rf_serial_read kworker/-276 4d... 4us : __const_udelay <-rtl8723_phy_rf_serial_read kworker/-276 4d... 4us!: delay_mwaitx <-rtl8723_phy_rf_serial_read kworker/-276 4d... 1004us : rtl8723_phy_set_bb_reg <-rtl8723_phy_rf_serial_read [...] Reported-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> |
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| .. | ||
| def.h | ||
| dm.c | ||
| dm.h | ||
| fw.c | ||
| fw.h | ||
| hw.c | ||
| hw.h | ||
| led.c | ||
| led.h | ||
| Makefile | ||
| phy.c | ||
| phy.h | ||
| pwrseq.c | ||
| pwrseq.h | ||
| reg.h | ||
| rf.c | ||
| rf.h | ||
| sw.c | ||
| sw.h | ||
| table.c | ||
| table.h | ||
| trx.c | ||
| trx.h | ||