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authorMaxime Chevallier <maxime.chevallier@bootlin.com>2026-01-05 16:18:39 +0100
committerJakub Kicinski <kuba@kernel.org>2026-01-06 17:13:34 -0800
commit13ff3e724207f579d3c814ee05516fefcb4f32e8 (patch)
treed77853b792baa16cbcee8f87848e852b8979dbae
parente5c8eda39a9fc1547d1398d707aa06c1d080abdd (diff)
net: sfp: return the number of written bytes for smbus single byte access
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>
-rw-r--r--drivers/net/phy/sfp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 6166e9196364..84bef5099dda 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -765,7 +765,7 @@ 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)