From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-x444.google.com ([2a00:1450:4864:20::444]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g38Pi-0000ri-3i for linux-mtd@lists.infradead.org; Thu, 20 Sep 2018 23:31:15 +0000 Received: by mail-wr1-x444.google.com with SMTP id v17-v6so11023573wrr.9 for ; Thu, 20 Sep 2018 16:31:02 -0700 (PDT) From: Nathan Chancellor To: Boris Brezillon , Miquel Raynal , Richard Weinberger Cc: David Woodhouse , Brian Norris , Marek Vasut , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Nick Desaulniers , Nathan Chancellor Subject: [PATCH] mtd: rawnand: Use proper enum for flctl_dma_fifo0_transfer Date: Thu, 20 Sep 2018 16:30:25 -0700 Message-Id: <20180920233024.28534-1-natechancellor@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Clang warns when one enumerated type is converted implicitly to another: drivers/mtd/nand/raw/sh_flctl.c:483:46: warning: implicit conversion from enumeration type 'enum dma_transfer_direction' to different enumeration type 'enum dma_data_direction' [-Wenum-conversion] flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_DEV_TO_MEM) > 0) ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ drivers/mtd/nand/raw/sh_flctl.c:542:46: warning: implicit conversion from enumeration type 'enum dma_transfer_direction' to different enumeration type 'enum dma_data_direction' [-Wenum-conversion] flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_MEM_TO_DEV) > 0) ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ 2 warnings generated. Use the proper enums from dma_data_direction to satisfy Clang. DMA_MEM_TO_DEV = DMA_TO_DEVICE = 1 DMA_DEV_TO_MEM = DMA_FROM_DEVICE = 2 Reported-by: Nick Desaulniers Signed-off-by: Nathan Chancellor --- drivers/mtd/nand/raw/sh_flctl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/raw/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c index c0c0798f268f..4d20d033de7b 100644 --- a/drivers/mtd/nand/raw/sh_flctl.c +++ b/drivers/mtd/nand/raw/sh_flctl.c @@ -480,7 +480,7 @@ static void read_fiforeg(struct sh_flctl *flctl, int rlen, int offset) /* initiate DMA transfer */ if (flctl->chan_fifo0_rx && rlen >= 32 && - flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_DEV_TO_MEM) > 0) + flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_FROM_DEVICE) > 0) goto convert; /* DMA success */ /* do polling transfer */ @@ -539,7 +539,7 @@ static void write_ec_fiforeg(struct sh_flctl *flctl, int rlen, /* initiate DMA transfer */ if (flctl->chan_fifo0_tx && rlen >= 32 && - flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_MEM_TO_DEV) > 0) + flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_TO_DEVICE) > 0) return; /* DMA success */ /* do polling transfer */ -- 2.19.0