diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-26 10:34:27 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-26 07:41:32 -0700 |
| commit | 04f6e0977f1180ebb2a34169aca8f83bb0154caf (patch) | |
| tree | 415e2b0073c6083f0ee019595e6c9a55d5294441 /drivers/net/wireless/b43/b43.h | |
| parent | 2e53415d0c9daa3bd7a6996727f311ca30b0f552 (diff) | |
b43: fall back gracefully to PIO mode after fatal DMA errors
commit 9e3bd9190800e8209b4a3e1d724c35f0738dcad2 upstream.
This makes the b43 driver just automatically fall back to PIO mode when
DMA doesn't work.
The driver already told the user to do it, so rather than have the user
reload the module with a new flag, just make the driver do it
automatically. We keep the message as an indication that something is
wrong, but now just automatically fall back to the hopefully working PIO
case.
(Some post-2.6.33 merge fixups by Larry Finger <Larry.Finger@lwfinger.net>
and yours truly... -- JWL)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Cc: maximilian attems <max@stro.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/net/wireless/b43/b43.h')
| -rw-r--r-- | drivers/net/wireless/b43/b43.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index 5ef15009b7f9..5db7e2fe648a 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -696,6 +696,7 @@ struct b43_wldev { bool radio_hw_enable; /* saved state of radio hardware enabled state */ bool qos_enabled; /* TRUE, if QoS is used. */ bool hwcrypto_enabled; /* TRUE, if HW crypto acceleration is enabled. */ + bool use_pio; /* TRUE if next init should use PIO */ /* PHY/Radio device. */ struct b43_phy phy; @@ -890,6 +891,12 @@ static inline bool b43_using_pio_transfers(struct b43_wldev *dev) return dev->__using_pio_transfers; } +#ifdef CONFIG_B43_FORCE_PIO +# define B43_PIO_DEFAULT 1 +#else +# define B43_PIO_DEFAULT 0 +#endif + /* Message printing */ void b43info(struct b43_wl *wl, const char *fmt, ...) __attribute__ ((format(printf, 2, 3))); |