hamza.kesraoui/sst-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: dsa: mv88e6xxx: Fix error when setting port policy on mv88e6393x

Browse Source 
[ Upstream commit 12bc14949c4a7272b509af0f1022a0deeb215fd8 ]

mv88e6393x_port_set_policy doesn't correctly shift the ptr value when
converting the policy format between the old and new styles, so the
target register ends up with the ptr being written over the data bits.

Shift the pointer to align with the format expected by
mv88e6393x_port_policy_write().

Fixes: 6584b26020 ("net: dsa: mv88e6xxx: implement .port_set_policy for Amethyst")
Signed-off-by: Peter Rashleigh <peter@rashleigh.ca>
Reviewed-by: Simon Horman <horms@kernel.org>
Message-ID: <20241016040822.3917-1-peter@rashleigh.ca>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Peter Rashleigh 2024-10-15 21:08:22 -07:00 committed by Greg Kroah-Hartman
parent 09ce491112
commit 549f619681
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/dsa/mv88e6xxx/port.c
View File

@ -1728,6 +1728,7 @@ int mv88e6393x_port_set_policy(struct mv88e6xxx_chip *chip, int port,
ptr = shift / 8;
shift %= 8;
mask >>= ptr * 8;
ptr <<= 8;
err = mv88e6393x_port_policy_read(chip, port, ptr, &reg);
if (err)