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From: Neil Armstrong <narmstrong@baylibre.com>
To: ulf.hansson@linaro.org
Cc: linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
	lebed.dmitry@gmail.com, Neil Armstrong <narmstrong@baylibre.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>
Subject: [PATCH] mmc: meson-gx: remove useless warning about scatterlist size alignment in block mode
Date: Wed, 14 Apr 2021 12:00:10 +0200	[thread overview]
Message-ID: <20210414100010.3877669-1-narmstrong@baylibre.com> (raw)

Since commit e085b51c74cc ("mmc: meson-gx: check for scatterlist size alignment in block mode"),
support for SDIO SD_IO_RW_EXTENDED transferts are properly filtered but some driver
like brcmfmac still gives a block sg buffer size not aligned with SDIO block,
triggerring a warning even if the transfer works in degraded mode.

This should be ultimately fixed in brcmfmac, but since it's only a performance issue
the warning should be removed.

Fixes: e085b51c74cc ("mmc: meson-gx: check for scatterlist size alignment in block mode")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 drivers/mmc/host/meson-gx-mmc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index eb6c02bc4a02..6bc151045843 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -246,11 +246,8 @@ static void meson_mmc_get_transfer_mode(struct mmc_host *mmc,
 		 * size, otherwise chain mode could not be used.
 		 */
 		for_each_sg(data->sg, sg, data->sg_len, i) {
-			if (sg->length % data->blksz) {
-				WARN_ONCE(1, "unaligned sg len %u blksize %u\n",
-					  sg->length, data->blksz);
+			if (sg->length % data->blksz)
 				return;
-			}
 		}
 	}
 
-- 
2.25.1


             reply	other threads:[~2021-04-14 10:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-14 10:00 Neil Armstrong [this message]
2021-04-15  9:07 ` [PATCH] mmc: meson-gx: remove useless warning about scatterlist size alignment in block mode Ulf Hansson
2021-04-16  9:33   ` Neil Armstrong

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