Ziyi Guo 7ac58d8832 net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() ...

[ Upstream commit 026f6513c5 ]

ocelot_port_xmit_inj() calls ocelot_can_inject() and
ocelot_port_inject_frame() without holding the injection group lock.
Both functions contain lockdep_assert_held() for the injection lock,
and the correct caller felix_port_deferred_xmit() properly acquires
the lock using ocelot_lock_inj_grp() before calling these functions.

Add ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register
injection path to fix the missing lock protection. The FDMA path is not
affected as it uses its own locking mechanism.

Fixes: c5e12ac3be ("net: mscc: ocelot: serialize access to the injection/extraction groups")
Signed-off-by: Ziyi Guo <n7l8m4@u.northwestern.edu>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20260208225602.1339325-4-n7l8m4@u.northwestern.edu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-04 07:20:36 -05:00

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Kconfig

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Makefile

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ocelot_devlink.c

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ocelot_fdma.c

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ocelot_fdma.h

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ocelot_flower.c

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ocelot_io.c

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ocelot_mm.c

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ocelot_mrp.c

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ocelot_net.c

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()

2026-03-04 07:20:36 -05:00

ocelot_police.c

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ocelot_police.h

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ocelot_ptp.c

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ocelot_qs.h

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ocelot_rew.h

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ocelot_stats.c

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ocelot_vcap.c

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ocelot_vcap.h

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ocelot_vsc7514.c

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ocelot.c

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ocelot.h

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vsc7514_regs.c

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