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From: Arnd Bergmann <arnd@kernel.org>
To: Ohad Ben-Cohen <ohad@wizery.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shengjiu Wang <shengjiu.wang@nxp.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-remoteproc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] remoteproc: imx_dsp_rproc: mark PM functions as __maybe_unused
Date: Thu, 14 Oct 2021 09:52:24 +0200	[thread overview]
Message-ID: <20211014075239.3714694-1-arnd@kernel.org> (raw)

From: Arnd Bergmann <arnd@arndb.de>

When CONFIG_PM_SLEEP is disabled, we get a harmless warning:

drivers/remoteproc/imx_dsp_rproc.c:1145:12: error: 'imx_dsp_resume' defined but not used [-Werror=unused-function]
 1145 | static int imx_dsp_resume(struct device *dev)
      |            ^~~~~~~~~~~~~~
drivers/remoteproc/imx_dsp_rproc.c:1110:12: error: 'imx_dsp_suspend' defined but not used [-Werror=unused-function]
 1110 | static int imx_dsp_suspend(struct device *dev)
      |            ^~~~~~~~~~~~~~~

Mark these as __maybe_unused to get a clean build.

Fixes: ec0e5549f358 ("remoteproc: imx_dsp_rproc: Add remoteproc driver for DSP on i.MX")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/remoteproc/imx_dsp_rproc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c
index 63749cfcf22f..90fcb389e252 100644
--- a/drivers/remoteproc/imx_dsp_rproc.c
+++ b/drivers/remoteproc/imx_dsp_rproc.c
@@ -1107,7 +1107,7 @@ static void imx_dsp_load_firmware(const struct firmware *fw, void *context)
 	release_firmware(fw);
 }
 
-static int imx_dsp_suspend(struct device *dev)
+static __maybe_unused int imx_dsp_suspend(struct device *dev)
 {
 	struct rproc *rproc = dev_get_drvdata(dev);
 	struct imx_dsp_rproc *priv = rproc->priv;
@@ -1142,7 +1142,7 @@ static int imx_dsp_suspend(struct device *dev)
 	return pm_runtime_force_suspend(dev);
 }
 
-static int imx_dsp_resume(struct device *dev)
+static __maybe_unused int imx_dsp_resume(struct device *dev)
 {
 	struct rproc *rproc = dev_get_drvdata(dev);
 	int ret = 0;
-- 
2.29.2


             reply	other threads:[~2021-10-14  7:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-14  7:52 Arnd Bergmann [this message]
2021-10-14 16:10 ` [PATCH] remoteproc: imx_dsp_rproc: mark PM functions as __maybe_unused Mathieu Poirier

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