[PATCH v5 15/19] remoteproc: Properly deal with a kernel panic when attached
From: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: 2021-02-11 23:53:02
Also in:
linux-arm-kernel, linux-remoteproc, lkml
Subsystem:
remote processor (remoteproc) subsystem, the rest · Maintainers:
Bjorn Andersson, Mathieu Poirier, Linus Torvalds
The panic handler operation of registered remote processors should also be called when remote processors have been attached to. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Arnaud Pouliquen <redacted> --- drivers/remoteproc/remoteproc_core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 62f708662052..0dd9f02f52b6 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c@@ -2693,7 +2693,11 @@ static int rproc_panic_handler(struct notifier_block *nb, unsigned long event, rcu_read_lock(); list_for_each_entry_rcu(rproc, &rproc_list, node) { - if (!rproc->ops->panic || rproc->state != RPROC_RUNNING) + if (!rproc->ops->panic) + continue; + + if (rproc->state != RPROC_RUNNING && + rproc->state != RPROC_ATTACHED) continue; d = rproc->ops->panic(rproc);
--
2.25.1