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PCI: add pci_try_set_mwi

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As suggested by Andrew, add pci_try_set_mwi(), which does not require
return-value checking.

- add pci_try_set_mwi() without __must_check
- make it return 0 on success, errno if the "try" failed or error
- review callers

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Randy Dunlap
2007-07-09 11:55:54 -07:00
committed by Greg Kroah-Hartman
parent f5609d7e67
commit 694625c0b3
11 changed files with 38 additions and 18 deletions
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drivers/net/starfire.c
+1 -1
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@@ -740,7 +740,7 @@ static int __devinit starfire_init_one(struct pci_dev *pdev,
pci_set_master(pdev);
/* enable MWI -- it vastly improves Rx performance on sparc64 */
pci_set_mwi(pdev);
pci_try_set_mwi(pdev);
#ifdef ZEROCOPY
/* Starfire can do TCP/UDP checksumming */