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edac: fix local pci_write_bits32 

Fix the edac local pci_write_bits32 to properly note the 'escape' mask if
all ones in a 32-bit word.

Currently no consumer of this function uses that mask, so there is no
danger to existing code.

Signed-off-by: Jeff Haran <jharan@Brocade.COM>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Haran 2009-04-13 14:40:20 -07:00 committed by Linus Torvalds
parent a7665b0a38
commit e6da46b273
1 changed files with 10 additions and 2 deletions
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12
drivers/edac/edac_core.h
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@ -767,11 +767,19 @@ static inline void pci_write_bits16(struct pci_dev *pdev, int offset,
pci_write_config_word(pdev, offset, value); pci_write_config_word(pdev, offset, value);
} }
/* write all or some bits in a dword-register*/ /*
* pci_write_bits32
*
* edac local routine to do pci_write_config_dword, but adds
* a mask parameter. If mask is all ones, ignore the mask.
* Otherwise utilize the mask to isolate specified bits
*
* write all or some bits in a dword-register
*/
static inline void pci_write_bits32(struct pci_dev *pdev, int offset, static inline void pci_write_bits32(struct pci_dev *pdev, int offset,
u32 value, u32 mask) u32 value, u32 mask)
{ {
if (mask != 0xffff) { if (mask != 0xffffffff) {
u32 buf; u32 buf;
pci_read_config_dword(pdev, offset, &buf); pci_read_config_dword(pdev, offset, &buf);