linux-kernel - [PATCH] remoteproc/mtk_scp: surround DT device IDs with CONFIG

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Message-Id: <20201102074007.299222-1-acourbot@chromium.org>
Date:   Mon,  2 Nov 2020 16:40:07 +0900
From:   Alexandre Courbot <acourbot@...omium.org>
To:     Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     linux-remoteproc@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Alexandre Courbot <acourbot@...omium.org>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH] remoteproc/mtk_scp: surround DT device IDs with CONFIG_OF

Now that this driver can be compiled with COMPILE_TEST, we have no
guarantee that CONFIG_OF will also be defined. When that happens, a
warning about mtk_scp_of_match being defined but unused will be reported
so make sure this variable is only defined if of_match_ptr() actually
uses it.

Fixes: cbd2dca74926c0e4610c40923cc786b732c9e8ef remoteproc: scp: add COMPILE_TEST dependency
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Alexandre Courbot <acourbot@...omium.org>
---
 drivers/remoteproc/mtk_scp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 577cbd5d421e..f74f22d4d1ff 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -772,12 +772,14 @@ static const struct mtk_scp_of_data mt8192_of_data = {
 	.host_to_scp_int_bit = MT8192_HOST_IPC_INT_BIT,
 };
 
+#if defined(CONFIG_OF)
 static const struct of_device_id mtk_scp_of_match[] = {
 	{ .compatible = "mediatek,mt8183-scp", .data = &mt8183_of_data },
 	{ .compatible = "mediatek,mt8192-scp", .data = &mt8192_of_data },
 	{},
 };
 MODULE_DEVICE_TABLE(of, mtk_scp_of_match);
+#endif
 
 static struct platform_driver mtk_scp_driver = {
 	.probe = scp_probe,
-- 
2.29.1.341.ge80a0c044ae-goog