rt2800: replace msleep() with usleep_range() on channel switch (31369c32) · Commits · 戴 / test

msleep(1) can sleep much more time then requested 1ms, this is not good on channel switch, which we want to be performed fast (i.e. to make scan faster). Replace msleep() with usleep_range(), which has much smaller maximum sleeping time boundary. Signed-off-by:

Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by:

Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ralink/rt2x00/rt2800lib.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -2110,7 +2110,9 @@ static void rt2800_config_channel_rf3xxx(struct rt2x00_dev *rt2x00dev,
		rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr);
		rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 1);
		rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
		msleep(1);

		usleep_range(1000, 1500);

		rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 0);
		rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
		}
		@@ -3442,7 +3444,7 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
		}
		}

		msleep(1);
		usleep_range(1000, 1500);

		/*
		* Clear channel statistic counters

Admin message