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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2018-08-06 14:30:34 -0500
committerBjorn Helgaas <bhelgaas@google.com>2018-08-06 14:30:34 -0500
commit36131ce9a0b23ed6feb04f8a3ffaa44b804abd5e (patch)
tree8ccec8940b8359e955f05a2284acafdb11e6725c /drivers/pci/pcie
parentce397d215ccd07b8ae3f71db689aedb85d56ab40 (diff)
PCI/ASPM: Convert to use sysfs_match_string() helper
The sysfs_match_string() helper returns index of the matching string in an array. Use it in pcie_aspm_set_policy() to simplify the code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> [bhelgaas: squash sysfs_match_string() fix into original patch for issue Reported-by: Heiner Kallweit <hkallweit1@gmail.com>] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pcie')
-rw-r--r--drivers/pci/pcie/aspm.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index c687c817b47d..5326916715d2 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -1127,11 +1127,9 @@ static int pcie_aspm_set_policy(const char *val,
if (aspm_disabled)
return -EPERM;
- for (i = 0; i < ARRAY_SIZE(policy_str); i++)
- if (!strncmp(val, policy_str[i], strlen(policy_str[i])))
- break;
- if (i >= ARRAY_SIZE(policy_str))
- return -EINVAL;
+ i = sysfs_match_string(policy_str, val);
+ if (i < 0)
+ return i;
if (i == aspm_policy)
return 0;