* [PATCH] ata_piix: constify pci_bits
@ 2018-01-03 5:13 Arvind Yadav
2018-01-08 14:16 ` Tejun Heo
0 siblings, 1 reply; 2+ messages in thread
From: Arvind Yadav @ 2018-01-03 5:13 UTC (permalink / raw)
To: tj; +Cc: linux-kernel, linux-ide
pci_bits are not supposed to change at runtime. Functions
pci_test_config_bits() working with const 'struct pci_bits'.
So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
drivers/ata/ata_piix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index b702c20..7ecb132 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -458,7 +458,7 @@ struct piix_host_priv {
[ich8_2port_sata_byt] = &ich8_2port_map_db,
};
-static struct pci_bits piix_enable_bits[] = {
+static const struct pci_bits piix_enable_bits[] = {
{ 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */
{ 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */
};
--
1.9.1
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2018-01-08 14:16 ` Tejun Heo
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