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[v4,07/10] PCI: Refactor bus_speed_read() with PCI_SPEED2STR macro

Message ID 1581937984-40353-8-git-send-email-yangyicong@hisilicon.com
State New
Headers show
Series Improve link speed presentation process | expand

Commit Message

Yicong Yang Feb. 17, 2020, 11:13 a.m. UTC 
Use PCI_SPEED2STR macro to replace judgement statment in
bus_speed_read() function.

Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
---
 drivers/pci/slot.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)
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Patch

diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index fb7c172..1c7e83f2 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -51,14 +51,7 @@  static ssize_t address_read_file(struct pci_slot *slot, char *buf)
 
 static ssize_t bus_speed_read(enum pci_bus_speed speed, char *buf)
 {
-	const char *speed_string;
-
-	if (speed < pci_bus_speed_strings_size)
-		speed_string = pci_bus_speed_strings[speed];
-	else
-		speed_string = "Unknown";
-
-	return sprintf(buf, "%s\n", speed_string);
+	return sprintf(buf, "%s\n", PCI_SPEED2STR(speed));
 }
 
 static ssize_t max_speed_read_file(struct pci_slot *slot, char *buf)