Commit cbe1e82a authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville
Browse files

b43: warn when forcing PIO mode



We have resolved all the known issues with DMA mode, however some users
(or distros) are still forcing PIO mode by config files. Without
debugging enabled it's not noticable at all. Add the warning for them.

Cc: Gregory Bellier <gregory.bellier@gmail.com>
Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Acked-by: default avatarLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 94899025
......@@ -4654,8 +4654,13 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
if (b43_bus_host_is_pcmcia(dev->dev) ||
b43_bus_host_is_sdio(dev->dev) ||
dev->use_pio) {
b43_bus_host_is_sdio(dev->dev)) {
dev->__using_pio_transfers = 1;
err = b43_pio_init(dev);
} else if (dev->use_pio) {
b43warn(dev->wl, "Forced PIO by use_pio module parameter. "
"This should not be needed and will result in lower "
"performance.\n");
dev->__using_pio_transfers = 1;
err = b43_pio_init(dev);
} else {
......
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