diff options
| author |   Rafał Miłecki <zajec5@gmail.com> | 2011-08-16 21:44:21 +0200 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2011-08-24 14:41:43 -0400 |
| commit | cbe1e82a543dae06ffdba9bc108a1a22dc55cde3 (patch) | |
| tree | 8576fec58880e5d800b5fc545761d8537da593ef /drivers | |
| parent | ath9k_hw: fix EIFS value to microseconds (diff) | |
| download | linux-dev-cbe1e82a543dae06ffdba9bc108a1a22dc55cde3.tar.xz linux-dev-cbe1e82a543dae06ffdba9bc108a1a22dc55cde3.zip | |
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: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index b5e83057dab3..bf17516c663b 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -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 { |