net: ethernet: fs_enet: only protect the .restart() call in .adjust_link

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When .adjust_link() gets called, it runs in thread context, with the
phydev->lock held. We only need to protect the fep->fecp/fccp/sccp
register that are accessed within the .restart() function from
concurrent access from the interrupts.

These registers are being protected by the fep->lock spinlock, so we can
move the spinlock protection around the .restart() call instead of the
entire adjust_link() call. By doing so, we can simplify further the
.adjust_link() callback and avoid the intermediate helper.

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Maxime Chevallier 2024-09-04 19:18:17 +02:00 • committed by David S. Miller

parent 96bf0c4e9f

commit aa3672be73

1 changed files with 6 additions and 12 deletions

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18

drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c

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