diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2006-08-16 11:05:16 -0500 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2006-08-29 17:06:29 -0400 |
| commit | 80b60fa8488e98ceaecb8f976abe79df50988037 (patch) | |
| tree | af64ba4e3589c8b98cb9673bb3aabdffb44c7c3e /drivers/net/wireless | |
| parent | 9c974fb1a44dc8d09c16caa4dd174b0403ba585c (diff) | |
[PATCH] bcm43xx: optimization of DMA bitfields
Convert the bitfields in the bcm43xx DMA code to properly
aligned u8 booleans. These flags are accessed in the DMA
hotpath, so it's a good idea to waste a few bytes of memory
for the sake of speed by not requiring masking (and probably
shifting) of the bitfields.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-Off-By: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/bcm43xx/bcm43xx_dma.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_dma.h b/drivers/net/wireless/bcm43xx/bcm43xx_dma.h index 258a2f9bd7a6..e04bcaddd1d0 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_dma.h +++ b/drivers/net/wireless/bcm43xx/bcm43xx_dma.h @@ -235,9 +235,12 @@ struct bcm43xx_dmaring { u16 mmio_base; /* DMA controller index number (0-5). */ int index; - u8 tx:1, /* TRUE, if this is a TX ring. */ - dma64:1, /* TRUE, if 64-bit DMA is enabled (FALSE if 32bit). */ - suspended:1; /* TRUE, if transfers are suspended on this ring. */ + /* Boolean. Is this a TX ring? */ + u8 tx; + /* Boolean. 64bit DMA if true, 32bit DMA otherwise. */ + u8 dma64; + /* Boolean. Are transfers suspended on this ring? */ + u8 suspended; struct bcm43xx_private *bcm; #ifdef CONFIG_BCM43XX_DEBUG /* Maximum number of used slots. */ |