diff options
| author | Maxime Chevallier <maxime.chevallier@bootlin.com> | 2026-01-05 16:18:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-17 16:35:28 +0100 |
| commit | 06dc322dcb20c71748d8247828895043e9486a74 (patch) | |
| tree | 81d199c40e77ecfdda737b4772bc031ee9ae6c87 | |
| parent | 0c63d5683eae6a7b4d81382bcbecb2a19feff90d (diff) | |
net: sfp: return the number of written bytes for smbus single byte access
[ Upstream commit 13ff3e724207f579d3c814ee05516fefcb4f32e8 ]
We expect the SFP write accessors to return the number of written bytes.
We fail to do so for single-byte smbus accesses, which may cause errors
when setting a module's high-power state and for some cotsworks modules.
Let's return the amount of written bytes, as expected.
Fixes: 7662abf4db94 ("net: phy: sfp: Add support for SMBus module access")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260105151840.144552-1-maxime.chevallier@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/phy/sfp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c index 0401fa6b24d2..6b4dd906b804 100644 --- a/drivers/net/phy/sfp.c +++ b/drivers/net/phy/sfp.c @@ -763,7 +763,7 @@ static int sfp_smbus_byte_write(struct sfp *sfp, bool a2, u8 dev_addr, dev_addr++; } - return 0; + return data - (u8 *)buf; } static int sfp_i2c_configure(struct sfp *sfp, struct i2c_adapter *i2c) |