DMA: shdma: Fix warnings due to declared but unused symbols
Several functions and variables are use on SH_CPU4 or ARM only. Guard
their declaration with conditional compilation directives to avoid
warnings.
Cc: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: dmaengine@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
index 0d765c0..2150987 100644
--- a/drivers/dma/sh/shdmac.c
+++ b/drivers/dma/sh/shdmac.c
@@ -443,6 +443,7 @@
return ret;
}
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARM)
static irqreturn_t sh_dmae_err(int irq, void *data)
{
struct sh_dmae_device *shdev = data;
@@ -453,6 +454,7 @@
sh_dmae_reset(shdev);
return IRQ_HANDLED;
}
+#endif
static bool sh_dmae_desc_completed(struct shdma_chan *schan,
struct shdma_desc *sdesc)
@@ -685,9 +687,12 @@
static int sh_dmae_probe(struct platform_device *pdev)
{
const struct sh_dmae_pdata *pdata;
- unsigned long irqflags = 0,
- chan_flag[SH_DMAE_MAX_CHANNELS] = {};
- int errirq, chan_irq[SH_DMAE_MAX_CHANNELS];
+ unsigned long chan_flag[SH_DMAE_MAX_CHANNELS] = {};
+ int chan_irq[SH_DMAE_MAX_CHANNELS];
+#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARM)
+ unsigned long irqflags = 0;
+ int errirq;
+#endif
int err, i, irq_cnt = 0, irqres = 0, irq_cap = 0;
struct sh_dmae_device *shdev;
struct dma_device *dma_dev;