diff mbox series

[v2] wifi: mt76: mt7915: add chip id condition in mt7915_check_eeprom()

Message ID 20221216040531.3736-1-shayne.chen@mediatek.com
State New
Headers show
Series [v2] wifi: mt76: mt7915: add chip id condition in mt7915_check_eeprom() | expand

Commit Message

Shayne Chen Dec. 16, 2022, 4:05 a.m. UTC
When flash mode is enabled, and the eeprom data in the flash is not for
the current chipset, it'll still be checked valid, and the default
eeprom bin won't be loaded.
(e.g., mt7915 NIC inserted with mt7916 eeprom data in the flash.)

Fix this kind of case by adding chip id into consideration in
mt7915_check_eeprom().

Reported-by: Cheng-Ji Li <cheng-ji.li@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
v2:
  - use switch case and add a macro to convert return value
---
 drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c
index 24efa280dd86..a79628933948 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/eeprom.c
@@ -33,11 +33,14 @@  static int mt7915_check_eeprom(struct mt7915_dev *dev)
 	u8 *eeprom = dev->mt76.eeprom.data;
 	u16 val = get_unaligned_le16(eeprom);
 
+#define CHECK_EEPROM_ERR(match)	(match ? 0 : -EINVAL)
 	switch (val) {
 	case 0x7915:
+		return CHECK_EEPROM_ERR(is_mt7915(&dev->mt76));
 	case 0x7916:
+		return CHECK_EEPROM_ERR(is_mt7916(&dev->mt76));
 	case 0x7986:
-		return 0;
+		return CHECK_EEPROM_ERR(is_mt7986(&dev->mt76));
 	default:
 		return -EINVAL;
 	}