The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x c3281abea67c9c0dc6219bbc41d1feae05a16da3 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024073024-ruined-frightful-2dc2@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..

Possible dependencies:

c3281abea67c ("remoteproc: stm32_rproc: Fix mailbox interrupts queuing") 35bdafda40cc ("remoteproc: stm32_rproc: Add mutex protection for workqueue")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From c3281abea67c9c0dc6219bbc41d1feae05a16da3 Mon Sep 17 00:00:00 2001 From: Gwenael Treuveur gwenael.treuveur@foss.st.com Date: Tue, 21 May 2024 18:23:16 +0200 Subject: [PATCH] remoteproc: stm32_rproc: Fix mailbox interrupts queuing

Manage interrupt coming from coprocessor also when state is ATTACHED.

Fixes: 35bdafda40cc ("remoteproc: stm32_rproc: Add mutex protection for workqueue") Cc: stable@vger.kernel.org Signed-off-by: Gwenael Treuveur gwenael.treuveur@foss.st.com Acked-by: Arnaud Pouliquen arnaud.pouliquen@foss.st.com Link: https://lore.kernel.org/r/20240521162316.156259-1-gwenael.treuveur@foss.st.c... Signed-off-by: Mathieu Poirier mathieu.poirier@linaro.org

diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c index 88623df7d0c3..8c7f7950b80e 100644 --- a/drivers/remoteproc/stm32_rproc.c +++ b/drivers/remoteproc/stm32_rproc.c @@ -294,7 +294,7 @@ static void stm32_rproc_mb_vq_work(struct work_struct *work)

mutex_lock(&rproc->lock);

- if (rproc->state != RPROC_RUNNING) + if (rproc->state != RPROC_RUNNING && rproc->state != RPROC_ATTACHED) goto unlock_mutex;

if (rproc_vq_interrupt(rproc, mb->vq_id) == IRQ_NONE)