diff options
author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2011-10-11 19:22:16 +0200 |
---|---|---|
committer | Jeff Garzik <jgarzik@redhat.com> | 2011-10-14 19:01:17 +0200 |
commit | c2036033604060adc85098bd0e7179a6b2a7b48c (patch) | |
tree | d0a10dedbc40d11d6a359ba5650da370b75047ca | |
parent | pata_cs5535: fix DRV_NAME (diff) | |
download | linux-c2036033604060adc85098bd0e7179a6b2a7b48c.tar.xz linux-c2036033604060adc85098bd0e7179a6b2a7b48c.zip |
libata: reduce ata_pci_[sff,bmdma]_init_one() size
Turn both helpers (which are used only during LLDs initialization
time and thus are not performance sensitive) into wrappers around
the new ata_pci_init_one() function, this cuts 20 LOC and saves
~1.1k of the output code size (x86-64):
text data bss dec hex filename
21392 0 19 21411 53a3 drivers/ata/libata-sff.o.before
20256 0 19 20275 4f33 drivers/ata/libata-sff.o.after
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r-- | drivers/ata/libata-sff.c | 111 |
1 files changed, 46 insertions, 65 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 2487ea7a507a..1c79a9575fe6 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -2507,31 +2507,10 @@ static const struct ata_port_info *ata_sff_find_valid_pi( return NULL; } -/** - * ata_pci_sff_init_one - Initialize/register PIO-only PCI IDE controller - * @pdev: Controller to be initialized - * @ppi: array of port_info, must be enough for two ports - * @sht: scsi_host_template to use when registering the host - * @host_priv: host private_data - * @hflag: host flags - * - * This is a helper function which can be called from a driver's - * xxx_init_one() probe function if the hardware uses traditional - * IDE taskfile registers and is PIO only. - * - * ASSUMPTION: - * Nobody makes a single channel controller that appears solely as - * the secondary legacy port on PCI. - * - * LOCKING: - * Inherited from PCI layer (may sleep). - * - * RETURNS: - * Zero on success, negative on errno-based value on error. - */ -int ata_pci_sff_init_one(struct pci_dev *pdev, - const struct ata_port_info * const *ppi, - struct scsi_host_template *sht, void *host_priv, int hflag) +static int ata_pci_init_one(struct pci_dev *pdev, + const struct ata_port_info * const *ppi, + struct scsi_host_template *sht, void *host_priv, + int hflags, bool bmdma) { struct device *dev = &pdev->dev; const struct ata_port_info *pi; @@ -2553,14 +2532,22 @@ int ata_pci_sff_init_one(struct pci_dev *pdev, if (rc) goto out; - /* prepare and activate SFF host */ - rc = ata_pci_sff_prepare_host(pdev, ppi, &host); + if (bmdma) + /* prepare and activate BMDMA host */ + rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host); + else + /* prepare and activate SFF host */ + rc = ata_pci_sff_prepare_host(pdev, ppi, &host); if (rc) goto out; host->private_data = host_priv; - host->flags |= hflag; + host->flags |= hflags; - rc = ata_pci_sff_activate_host(host, ata_sff_interrupt, sht); + if (bmdma) { + pci_set_master(pdev); + rc = ata_pci_sff_activate_host(host, ata_bmdma_interrupt, sht); + } else + rc = ata_pci_sff_activate_host(host, ata_sff_interrupt, sht); out: if (rc == 0) devres_remove_group(&pdev->dev, NULL); @@ -2569,6 +2556,35 @@ out: return rc; } + +/** + * ata_pci_sff_init_one - Initialize/register PIO-only PCI IDE controller + * @pdev: Controller to be initialized + * @ppi: array of port_info, must be enough for two ports + * @sht: scsi_host_template to use when registering the host + * @host_priv: host private_data + * @hflag: host flags + * + * This is a helper function which can be called from a driver's + * xxx_init_one() probe function if the hardware uses traditional + * IDE taskfile registers and is PIO only. + * + * ASSUMPTION: + * Nobody makes a single channel controller that appears solely as + * the secondary legacy port on PCI. + * + * LOCKING: + * Inherited from PCI layer (may sleep). + * + * RETURNS: + * Zero on success, negative on errno-based value on error. + */ +int ata_pci_sff_init_one(struct pci_dev *pdev, + const struct ata_port_info * const *ppi, + struct scsi_host_template *sht, void *host_priv, int hflag) +{ + return ata_pci_init_one(pdev, ppi, sht, host_priv, hflag, 0); +} EXPORT_SYMBOL_GPL(ata_pci_sff_init_one); #endif /* CONFIG_PCI */ @@ -3286,42 +3302,7 @@ int ata_pci_bmdma_init_one(struct pci_dev *pdev, struct scsi_host_template *sht, void *host_priv, int hflags) { - struct device *dev = &pdev->dev; - const struct ata_port_info *pi; - struct ata_host *host = NULL; - int rc; - - DPRINTK("ENTER\n"); - - pi = ata_sff_find_valid_pi(ppi); - if (!pi) { - dev_err(&pdev->dev, "no valid port_info specified\n"); - return -EINVAL; - } - - if (!devres_open_group(dev, NULL, GFP_KERNEL)) - return -ENOMEM; - - rc = pcim_enable_device(pdev); - if (rc) - goto out; - - /* prepare and activate BMDMA host */ - rc = ata_pci_bmdma_prepare_host(pdev, ppi, &host); - if (rc) - goto out; - host->private_data = host_priv; - host->flags |= hflags; - - pci_set_master(pdev); - rc = ata_pci_sff_activate_host(host, ata_bmdma_interrupt, sht); - out: - if (rc == 0) - devres_remove_group(&pdev->dev, NULL); - else - devres_release_group(&pdev->dev, NULL); - - return rc; + return ata_pci_init_one(pdev, ppi, sht, host_priv, hflags, 1); } EXPORT_SYMBOL_GPL(ata_pci_bmdma_init_one); |