From fe943bd8ab75552f2773ee27c7c5ae6b48941582 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Thu, 13 May 2021 23:02:01 +0200 Subject: [PATCH] PCI/VPD: Remove struct pci_vpd.flag The struct pci_vpd.flag member was used only to communicate between pci_vpd_wait() and its callers. Remove the flag member and pass the value directly to pci_vpd_wait() to simplify the code. [bhelgaas: commit log] Link: https://lore.kernel.org/r/e4ef6845-6b23-1646-28a0-d5c5a28347b6@gmail.com Signed-off-by: Heiner Kallweit Signed-off-by: Bjorn Helgaas --- drivers/pci/vpd.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c index 3d9223f03a225..d7f705ba66640 100644 --- a/drivers/pci/vpd.c +++ b/drivers/pci/vpd.c @@ -22,7 +22,6 @@ struct pci_vpd { const struct pci_vpd_ops *ops; struct mutex lock; unsigned int len; - u16 flag; u8 cap; unsigned int valid:1; }; @@ -117,10 +116,11 @@ error: * This code has to spin since there is no other notification from the PCI * hardware. Since the VPD is often implemented by serial attachment to an * EEPROM, it may take many milliseconds to complete. + * @set: if true wait for flag to be set, else wait for it to be cleared * * Returns 0 on success, negative values indicate error. */ -static int pci_vpd_wait(struct pci_dev *dev) +static int pci_vpd_wait(struct pci_dev *dev, bool set) { struct pci_vpd *vpd = dev->vpd; unsigned long timeout = jiffies + msecs_to_jiffies(125); @@ -134,7 +134,7 @@ static int pci_vpd_wait(struct pci_dev *dev) if (ret < 0) return ret; - if ((status & PCI_VPD_ADDR_F) == vpd->flag) + if (!!(status & PCI_VPD_ADDR_F) == set) return 0; if (time_after(jiffies, timeout)) @@ -192,8 +192,7 @@ static ssize_t pci_vpd_read(struct pci_dev *dev, loff_t pos, size_t count, pos & ~3); if (ret < 0) break; - vpd->flag = PCI_VPD_ADDR_F; - ret = pci_vpd_wait(dev); + ret = pci_vpd_wait(dev, true); if (ret < 0) break; @@ -257,8 +256,7 @@ static ssize_t pci_vpd_write(struct pci_dev *dev, loff_t pos, size_t count, if (ret < 0) break; - vpd->flag = 0; - ret = pci_vpd_wait(dev); + ret = pci_vpd_wait(dev, false); if (ret < 0) break; -- 2.30.2