From: Miquel Raynal miquel.raynal@bootlin.com
[ Upstream commit 7811f2e7fd6a30d96eaa1fccf57b07694a8cad27 ]
When built without OF support, of_match_node() expands to NULL, which produces the following output:
drivers/dma/dw/rzn1-dmamux.c:105:34: warning: unused variable 'rzn1_dmac_match' [-Wunused-const-variable]
static const struct of_device_id rzn1_dmac_match[] = {
One way to silence the warning is to enclose the structure definition with an #ifdef CONFIG_OF/#endif block.
Fixes: 134d9c52fca2 ("dmaengine: dw: dmamux: Introduce RZN1 DMA router support") Reported-by: kernel test robot lkp@intel.com Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Link: https://lore.kernel.org/r/20220609141455.300879-2-miquel.raynal@bootlin.com Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/dma/dw/rzn1-dmamux.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/dma/dw/rzn1-dmamux.c b/drivers/dma/dw/rzn1-dmamux.c index 0ce4fb58185e..f9912c3dd4d7 100644 --- a/drivers/dma/dw/rzn1-dmamux.c +++ b/drivers/dma/dw/rzn1-dmamux.c @@ -102,10 +102,12 @@ static void *rzn1_dmamux_route_allocate(struct of_phandle_args *dma_spec, return ERR_PTR(ret); }
+#ifdef CONFIG_OF static const struct of_device_id rzn1_dmac_match[] = { { .compatible = "renesas,rzn1-dma" }, {} }; +#endif
static int rzn1_dmamux_probe(struct platform_device *pdev) {