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PCI: Add pci_info_ratelimited() to ratelimit PCI separately

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Do not use printk_ratelimit() in drivers/pci/pci.c as it shares the rate
limiting state with all other callers to the printk_ratelimit().

Add pci_info_ratelimited() (similar to pci_notice_ratelimited() added in
the commit a88a7b3eb0 ("vfio: Use dev_printk() when possible")) and use
it instead of printk_ratelimit() + pci_info().

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Krzysztof Wilczynski <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
This commit is contained in:
Krzysztof Wilczynski authored and Bjorn Helgaas committed 2019-09-05 13:26:46 -05:00
1 parent 244c06c3b6
commit 7f1c62c443
2 files changed
+5 -2
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drivers/pci/pci.c
+2 -2
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@@ -890,8 +890,8 @@ static int pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
dev->current_state = (pmcsr & PCI_PM_CTRL_STATE_MASK);
if (dev->current_state != state && printk_ratelimit())
pci_info(dev, "Refused to change power state, currently in D%d\n",
if (dev->current_state != state)
pci_info_ratelimited(dev, "Refused to change power state, currently in D%d\n",
dev->current_state);
/*
include/linux/pci.h
+3
View File
@@ -2433,4 +2433,7 @@ void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type);
#define pci_notice_ratelimited(pdev, fmt, arg...) \
dev_notice_ratelimited(&(pdev)->dev, fmt, ##arg)
#define pci_info_ratelimited(pdev, fmt, arg...) \
dev_info_ratelimited(&(pdev)->dev, fmt, ##arg)
#endif /* LINUX_PCI_H */