diff options
| author | Randy Dunlap | 2007-07-09 20:55:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2007-07-12 01:02:11 +0200 |
| commit | 694625c0b322905d6892fad873029f764cd4823f (patch) | |
| tree | c48ac2c0095f2ac4044bd12b27ea318eb6156c73 /drivers/net | |
| parent | PCI: pcie: remove SPIN_LOCK_UNLOCKED (diff) | |
| download | kernel-qcow2-linux-694625c0b322905d6892fad873029f764cd4823f.tar.gz kernel-qcow2-linux-694625c0b322905d6892fad873029f764cd4823f.tar.xz kernel-qcow2-linux-694625c0b322905d6892fad873029f764cd4823f.zip | |
PCI: add pci_try_set_mwi
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/cassini.c | 4 | ||||
| -rw-r--r-- | drivers/net/starfire.c | 2 | ||||
| -rw-r--r-- | drivers/net/tulip/tulip_core.c | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/prism54/islpci_hotplug.c | 3 |
4 files changed, 5 insertions, 6 deletions
diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 805924fc077a..f6e4030c73d1 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -4917,13 +4917,13 @@ static int __devinit cas_init_one(struct pci_dev *pdev, pci_cmd &= ~PCI_COMMAND_SERR; pci_cmd |= PCI_COMMAND_PARITY; pci_write_config_word(pdev, PCI_COMMAND, pci_cmd); - if (pci_set_mwi(pdev)) + if (pci_try_set_mwi(pdev)) printk(KERN_WARNING PFX "Could not enable MWI for %s\n", pci_name(pdev)); /* * On some architectures, the default cache line size set - * by pci_set_mwi reduces perforamnce. We have to increase + * by pci_try_set_mwi reduces perforamnce. We have to increase * it for this case. To start, we'll print some configuration * data. */ diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c index 786d4b9c07ec..2f69d5c5dfa6 100644 --- a/drivers/net/starfire.c +++ b/drivers/net/starfire.c @@ -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 */ diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c index 1a9e911b86a2..7dcd138b0fed 100644 --- a/drivers/net/tulip/tulip_core.c +++ b/drivers/net/tulip/tulip_core.c @@ -1155,7 +1155,7 @@ static void __devinit tulip_mwi_config (struct pci_dev *pdev, /* set or disable MWI in the standard PCI command bit. * Check for the case where mwi is desired but not available */ - if (csr0 & MWI) pci_set_mwi(pdev); + if (csr0 & MWI) pci_try_set_mwi(pdev); else pci_clear_mwi(pdev); /* read result from hardware (in case bit refused to enable) */ diff --git a/drivers/net/wireless/prism54/islpci_hotplug.c b/drivers/net/wireless/prism54/islpci_hotplug.c index 25d6c80c9bab..af2e4f2405f2 100644 --- a/drivers/net/wireless/prism54/islpci_hotplug.c +++ b/drivers/net/wireless/prism54/islpci_hotplug.c @@ -166,8 +166,7 @@ prism54_probe(struct pci_dev *pdev, const struct pci_device_id *id) pci_set_master(pdev); /* enable MWI */ - if (!pci_set_mwi(pdev)) - printk(KERN_INFO "%s: pci_set_mwi(pdev) succeeded\n", DRV_NAME); + pci_try_set_mwi(pdev); /* setup the network device interface and its structure */ if (!(ndev = islpci_setup(pdev))) { |