From c9c13ba428ef90a9b408a6cdf874e14ab5754516 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Sat, 28 Sep 2019 02:43:08 +0300 Subject: PCI: Add PCI_STD_NUM_BARS for the number of standard BARs Code that iterates over all standard PCI BARs typically uses PCI_STD_RESOURCE_END. However, that requires the unusual test "i <= PCI_STD_RESOURCE_END" rather than something the typical "i < PCI_STD_NUM_BARS". Add a definition for PCI_STD_NUM_BARS and change loops to use the more idiomatic C style to help avoid fencepost errors. Link: https://lore.kernel.org/r/20190927234026.23342-1-efremov@linux.com Link: https://lore.kernel.org/r/20190927234308.23935-1-efremov@linux.com Link: https://lore.kernel.org/r/20190916204158.6889-3-efremov@linux.com Signed-off-by: Denis Efremov Signed-off-by: Bjorn Helgaas Acked-by: Sebastian Ott # arch/s390/ Acked-by: Bartlomiej Zolnierkiewicz # video/fbdev/ Acked-by: Gustavo Pimentel # pci/controller/dwc/ Acked-by: Jack Wang # scsi/pm8001/ Acked-by: Martin K. Petersen # scsi/pm8001/ Acked-by: Ulf Hansson # memstick/ --- drivers/video/fbdev/core/fbmem.c | 4 ++-- drivers/video/fbdev/efifb.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/video') diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index e6a1c805064f..19af5626a317 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1774,7 +1774,7 @@ int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const int err, idx, bar; bool res_id_found = false; - for (idx = 0, bar = 0; bar < PCI_ROM_RESOURCE; bar++) { + for (idx = 0, bar = 0; bar < PCI_STD_NUM_BARS; bar++) { if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) continue; idx++; @@ -1784,7 +1784,7 @@ int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const if (!ap) return -ENOMEM; - for (idx = 0, bar = 0; bar < PCI_ROM_RESOURCE; bar++) { + for (idx = 0, bar = 0; bar < PCI_STD_NUM_BARS; bar++) { if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) continue; ap->ranges[idx].base = pci_resource_start(pdev, bar); diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 51d97ec4f58f..1caa3726cb45 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -653,7 +653,7 @@ static void efifb_fixup_resources(struct pci_dev *dev) if (!base) return; - for (i = 0; i <= PCI_STD_RESOURCE_END; i++) { + for (i = 0; i < PCI_STD_NUM_BARS; i++) { struct resource *res = &dev->resource[i]; if (!(res->flags & IORESOURCE_MEM)) -- cgit v1.2.3-59-g8ed1b From d6aa37cd04fdafaf31ae89691e537535df43ca78 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 5 Nov 2019 11:30:36 +0100 Subject: PCI/PM: Avoid exporting __pci_complete_power_transition() Notice that radeon_set_suspend(), which is the only caller of __pci_complete_power_transition() outside of pci.c, really only cares about the pci_platform_power_transition() invoked by it, so export the latter instead of it, update the radeon driver to call pci_platform_power_transition() directly and make __pci_complete_power_transition() static. Code rearrangement, no intentional functional impact. Link: https://lore.kernel.org/r/1731661.ykamz2Tiuf@kreacher Signed-off-by: Rafael J. Wysocki Signed-off-by: Bjorn Helgaas Reviewed-by: Mika Westerberg --- drivers/pci/pci.c | 6 +++--- drivers/video/fbdev/aty/radeon_pm.c | 2 +- include/linux/pci.h | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/video') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 56bc79e33286..2f53234f9e91 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -963,7 +963,7 @@ void pci_refresh_power_state(struct pci_dev *dev) * @dev: PCI device to handle. * @state: State to put the device into. */ -static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state) +int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state) { int error; @@ -979,6 +979,7 @@ static int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state) return error; } +EXPORT_SYMBOL_GPL(pci_platform_power_transition); /** * pci_wakeup - Wake up a PCI device @@ -1061,7 +1062,7 @@ void pci_bus_set_current_state(struct pci_bus *bus, pci_power_t state) * * This function should not be called directly by device drivers. */ -int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state) +static int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state) { int ret; @@ -1073,7 +1074,6 @@ int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state) pci_bus_set_current_state(dev->subordinate, PCI_D3cold); return ret; } -EXPORT_SYMBOL_GPL(__pci_complete_power_transition); /** * pci_set_power_state - Set the power state of a PCI device diff --git a/drivers/video/fbdev/aty/radeon_pm.c b/drivers/video/fbdev/aty/radeon_pm.c index 2dc5703eac51..7c4483c7f313 100644 --- a/drivers/video/fbdev/aty/radeon_pm.c +++ b/drivers/video/fbdev/aty/radeon_pm.c @@ -2593,7 +2593,7 @@ static void radeon_set_suspend(struct radeonfb_info *rinfo, int suspend) * calling pci_set_power_state() */ radeonfb_whack_power_state(rinfo, PCI_D2); - __pci_complete_power_transition(rinfo->pdev, PCI_D2); + pci_platform_power_transition(rinfo->pdev, PCI_D2); } else { printk(KERN_DEBUG "radeonfb (%s): switching to D0 state...\n", pci_name(rinfo->pdev)); diff --git a/include/linux/pci.h b/include/linux/pci.h index 9b0e35e09874..86976cccdfe3 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1228,7 +1228,7 @@ struct pci_cap_saved_state *pci_find_saved_ext_cap(struct pci_dev *dev, int pci_add_cap_save_buffer(struct pci_dev *dev, char cap, unsigned int size); int pci_add_ext_cap_save_buffer(struct pci_dev *dev, u16 cap, unsigned int size); -int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state); +int pci_platform_power_transition(struct pci_dev *dev, pci_power_t state); int pci_set_power_state(struct pci_dev *dev, pci_power_t state); pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state); bool pci_pme_capable(struct pci_dev *dev, pci_power_t state); -- cgit v1.2.3-59-g8ed1b