linux-kernel - [PATCH v2 3/3] remoteproc: wkup_m3: Set deny_sysfs

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Message-ID: <20201121030156.22857-4-s-anna@ti.com>
Date:   Fri, 20 Nov 2020 21:01:56 -0600
From:   Suman Anna <s-anna@...com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     Arnaud Pouliquen <arnaud.pouliquen@...com>,
        Loic Pallardy <loic.pallardy@...com>,
        Grzegorz Jaszczyk <grzegorz.jaszczyk@...aro.org>,
        Tony Lindgren <tony@...mide.com>,
        <linux-remoteproc@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Suman Anna <s-anna@...com>
Subject: [PATCH v2 3/3] remoteproc: wkup_m3: Set deny_sysfs_ops flag

The Wakeup M3 remote processor is controlled by the wkup_m3_ipc
client driver, so set the newly introduced 'deny_sysfs_ops' flag
to not allow any overriding of the remoteproc firmware or state
from userspace.

Signed-off-by: Suman Anna <s-anna@...com>
---
v2: rebased version, no code changes, patch title adjusted slightly
v1: https://patchwork.kernel.org/project/linux-remoteproc/patch/20180915003725.17549-6-s-anna@ti.com/

 drivers/remoteproc/wkup_m3_rproc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c
index b9349d684258..d92d7f32ba8d 100644
--- a/drivers/remoteproc/wkup_m3_rproc.c
+++ b/drivers/remoteproc/wkup_m3_rproc.c
@@ -160,6 +160,7 @@ static int wkup_m3_rproc_probe(struct platform_device *pdev)
 	}
 
 	rproc->auto_boot = false;
+	rproc->deny_sysfs_ops = true;
 
 	wkupm3 = rproc->priv;
 	wkupm3->rproc = rproc;
-- 
2.28.0