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| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-08-27 18:18:22 +0300 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2019-10-18 17:05:43 -0500 |
| commit | 6a8c97345a15f9c60ff6c6ac1629a3e9ec140320 (patch) | |
| tree | 46d2ffbea4222196335b1db11db1c14b45073132 /drivers/pci/pcie | |
| parent | PCI/AER: Add PoisonTLPBlocked to Uncorrectable error counters (diff) | |
| download | linux-dev-6a8c97345a15f9c60ff6c6ac1629a3e9ec140320.tar.xz linux-dev-6a8c97345a15f9c60ff6c6ac1629a3e9ec140320.zip | |
PCI/AER: Use for_each_set_bit() to simplify code
Simplify error counting code by using for_each_set_bit() library function.
Link: https://lore.kernel.org/r/20190827151823.75312-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Diffstat (limited to 'drivers/pci/pcie')
| -rw-r--r-- | drivers/pci/pcie/aer.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index 0742e3a10ed8..bf3c77957a87 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -15,6 +15,7 @@ #define pr_fmt(fmt) "AER: " fmt #define dev_fmt pr_fmt +#include <linux/bitops.h> #include <linux/cper.h> #include <linux/pci.h> #include <linux/pci-acpi.h> @@ -716,7 +717,8 @@ const struct attribute_group aer_stats_attr_group = { static void pci_dev_aer_stats_incr(struct pci_dev *pdev, struct aer_err_info *info) { - int status, i, max = -1; + unsigned long status = info->status & ~info->mask; + int i, max = -1; u64 *counter = NULL; struct aer_stats *aer_stats = pdev->aer_stats; @@ -741,10 +743,8 @@ static void pci_dev_aer_stats_incr(struct pci_dev *pdev, break; } - status = (info->status & ~info->mask); - for (i = 0; i < max; i++) - if (status & (1 << i)) - counter[i]++; + for_each_set_bit(i, &status, max) + counter[i]++; } static void pci_rootport_aer_stats_incr(struct pci_dev *pdev, @@ -776,14 +776,11 @@ static void __print_tlp_header(struct pci_dev *dev, static void __aer_print_error(struct pci_dev *dev, struct aer_err_info *info) { - int i, status; + unsigned long status = info->status & ~info->mask; const char *errmsg = NULL; - status = (info->status & ~info->mask); - - for (i = 0; i < 32; i++) { - if (!(status & (1 << i))) - continue; + int i; + for_each_set_bit(i, &status, 32) { if (info->severity == AER_CORRECTABLE) errmsg = i < ARRAY_SIZE(aer_correctable_error_string) ? aer_correctable_error_string[i] : NULL; |