From 60891f699ae268ef6ca425013b2427769a5f5fc2 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Thu, 31 Jul 2014 11:21:09 +0100 Subject: [efi] Use efi_handle_name() instead of efi_devpath_text() where applicable Using efi_devpath_text() is marginally more efficient if we already have the device path protocol available, but the mild increase in efficiency is not worth compromising the clarity of the pattern: DBGC ( device, "THING %p %s ...", device, efi_handle_name ( device ) ); Signed-off-by: Michael Brown --- src/drivers/net/efi/snpnet.c | 47 ++++++++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 24 deletions(-) (limited to 'src/drivers') diff --git a/src/drivers/net/efi/snpnet.c b/src/drivers/net/efi/snpnet.c index f005dfb9f..acba3ed36 100644 --- a/src/drivers/net/efi/snpnet.c +++ b/src/drivers/net/efi/snpnet.c @@ -334,24 +334,24 @@ static struct net_device_operations snpnet_operations = { static int snpnet_pci_info ( struct efi_device *efidev, struct device *dev ) { EFI_BOOT_SERVICES *bs = efi_systab->BootServices; EFI_DEVICE_PATH_PROTOCOL *devpath = efidev->path; + EFI_HANDLE device = efidev->device; struct pci_device pci; - EFI_HANDLE device; + EFI_HANDLE pci_device; EFI_STATUS efirc; int rc; /* Check for presence of PCI I/O protocol */ if ( ( efirc = bs->LocateDevicePath ( &efi_pci_io_protocol_guid, - &devpath, &device ) ) != 0 ) { - DBGC ( efidev->device, "SNP %p %s is not a PCI device\n", - efidev->device, efi_devpath_text ( efidev->path ) ); + &devpath, &pci_device ) ) != 0 ) { + DBGC ( device, "SNP %p %s is not a PCI device\n", + device, efi_handle_name ( device ) ); return -EEFI ( efirc ); } /* Get PCI device information */ - if ( ( rc = efipci_info ( device, &pci ) ) != 0 ) { - DBGC ( efidev->device, "SNP %p %s could not get PCI " - "information: %s\n", efidev->device, - efi_devpath_text ( efidev->path ), strerror ( rc ) ); + if ( ( rc = efipci_info ( pci_device, &pci ) ) != 0 ) { + DBGC ( device, "SNP %p %s could not get PCI information: %s\n", + device, efi_handle_name ( device ), strerror ( rc ) ); return rc; } @@ -370,15 +370,15 @@ static int snpnet_pci_info ( struct efi_device *efidev, struct device *dev ) { * @ret rc Return status code */ static int snpnet_dev_info ( struct efi_device *efidev, struct device *dev ) { + EFI_HANDLE device = efidev->device; int rc; /* Try getting underlying PCI device information */ if ( ( rc = snpnet_pci_info ( efidev, dev ) ) == 0 ) return 0; - DBGC ( efidev->device, "SNP %p %s could not get underlying device " - "information\n", efidev->device, - efi_devpath_text ( efidev->path ) ); + DBGC ( device, "SNP %p %s could not get underlying device " + "information\n", device, efi_handle_name ( device ) ); return -ENOTTY; } @@ -406,8 +406,7 @@ int snpnet_start ( struct efi_device *efidev ) { EFI_OPEN_PROTOCOL_EXCLUSIVE )))!=0){ rc = -EEFI ( efirc ); DBGC ( device, "SNP %p %s cannot open SNP protocol: %s\n", - device, efi_devpath_text ( efidev->path ), - strerror ( rc ) ); + device, efi_handle_name ( device ), strerror ( rc ) ); goto err_open_protocol; } @@ -438,21 +437,21 @@ int snpnet_start ( struct efi_device *efidev ) { ( ( efirc = snp->snp->Start ( snp->snp ) ) != 0 ) ) { rc = -EEFI ( efirc ); DBGC ( device, "SNP %p %s could not start: %s\n", device, - efi_devpath_text ( efidev->path ), strerror ( rc ) ); + efi_handle_name ( device ), strerror ( rc ) ); goto err_start; } if ( ( mode->State == EfiSimpleNetworkInitialized ) && ( ( efirc = snp->snp->Shutdown ( snp->snp ) ) != 0 ) ) { rc = -EEFI ( efirc ); DBGC ( device, "SNP %p %s could not shut down: %s\n", device, - efi_devpath_text ( efidev->path ), strerror ( rc ) ); + efi_handle_name ( device ), strerror ( rc ) ); goto err_shutdown; } /* Populate network device parameters */ if ( mode->HwAddressSize != netdev->ll_protocol->hw_addr_len ) { DBGC ( device, "SNP %p %s has invalid hardware address " - "length %d\n", device, efi_devpath_text ( efidev->path ), + "length %d\n", device, efi_handle_name ( device ), mode->HwAddressSize ); rc = -ENOTSUP; goto err_hw_addr_len; @@ -461,7 +460,7 @@ int snpnet_start ( struct efi_device *efidev ) { netdev->ll_protocol->hw_addr_len ); if ( mode->HwAddressSize != netdev->ll_protocol->ll_addr_len ) { DBGC ( device, "SNP %p %s has invalid link-layer address " - "length %d\n", device, efi_devpath_text ( efidev->path ), + "length %d\n", device, efi_handle_name ( device ), mode->HwAddressSize ); rc = -ENOTSUP; goto err_ll_addr_len; @@ -474,8 +473,8 @@ int snpnet_start ( struct efi_device *efidev ) { /* Register network device */ if ( ( rc = register_netdev ( netdev ) ) != 0 ) goto err_register_netdev; - DBGC ( device, "SNP %p %s registered as %s\n", device, - efi_devpath_text ( efidev->path ), netdev->name ); + DBGC ( device, "SNP %p %s registered as %s\n", + device, efi_handle_name ( device ), netdev->name ); /* Set initial link state */ if ( snp->snp->Mode->MediaPresentSupported ) { @@ -512,6 +511,7 @@ void snpnet_stop ( struct efi_device *efidev ) { EFI_BOOT_SERVICES *bs = efi_systab->BootServices; struct net_device *netdev = efidev_get_drvdata ( efidev ); struct snp_nic *snp = netdev->priv; + EFI_HANDLE device = efidev->device; EFI_STATUS efirc; int rc; @@ -521,9 +521,8 @@ void snpnet_stop ( struct efi_device *efidev ) { /* Stop SNP protocol */ if ( ( efirc = snp->snp->Stop ( snp->snp ) ) != 0 ) { rc = -EEFI ( efirc ); - DBGC ( efidev->device, "SNP %p %s could not stop: %s\n", - efidev->device, efi_devpath_text ( efidev->path ), - strerror ( rc ) ); + DBGC ( device, "SNP %p %s could not stop: %s\n", device, + efi_handle_name ( device ), strerror ( rc ) ); /* Nothing we can do about this */ } @@ -533,6 +532,6 @@ void snpnet_stop ( struct efi_device *efidev ) { netdev_put ( netdev ); /* Close SNP protocol */ - bs->CloseProtocol ( efidev->device, &efi_simple_network_protocol_guid, - efi_image_handle, efidev->device ); + bs->CloseProtocol ( device, &efi_simple_network_protocol_guid, + efi_image_handle, device ); } -- cgit v1.2.3-55-g7522