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octeon_ep: initialize mbox mutexes

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[ Upstream commit 611e1b016c ]

The two mbox-related mutexes are destroyed in octep_ctrl_mbox_uninit(),
but the corresponding mutex_init calls were missing.
A "DEBUG_LOCKS_WARN_ON(lock->magic != lock)" warning was emitted with
CONFIG_DEBUG_MUTEXES on.

Initialize the two mutexes in octep_ctrl_mbox_init().

Fixes: 577f0d1b1c ("octeon_ep: add separate mailbox command and response queues")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230729151516.24153-1-mschmidt@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Michal Schmidt 2023-07-29 17:15:16 +02:00 committed by Greg Kroah-Hartman
parent 34115ad1e5
commit 0acc483f9b
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_mbox.c
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@ -98,6 +98,9 @@ int octep_ctrl_mbox_init(struct octep_ctrl_mbox *mbox)
writeq(OCTEP_CTRL_MBOX_STATUS_INIT,
OCTEP_CTRL_MBOX_INFO_HOST_STATUS(mbox->barmem));
mutex_init(&mbox->h2fq_lock);
mutex_init(&mbox->f2hq_lock);
mbox->h2fq.sz = readl(OCTEP_CTRL_MBOX_H2FQ_SZ(mbox->barmem));
mbox->h2fq.hw_prod = OCTEP_CTRL_MBOX_H2FQ_PROD(mbox->barmem);
mbox->h2fq.hw_cons = OCTEP_CTRL_MBOX_H2FQ_CONS(mbox->barmem);