On 4/11/22 09:33, gregkh@linuxfoundation.org wrote:

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

thanks,

greg k-h

Hi Greg,

The patch doesn't apply because the following one is not there: 127e6e98ca9b mmc: mmci_sdmmc: Replace sg_dma_xxx macros

Maybe it should have been a fix patch too.

Ulf, what is your opinion on that?

Best regards, Yann

------------------ original commit in Linus's tree ------------------

From 0d319dd5a27183b75d984e3dc495248e59f99334 Mon Sep 17 00:00:00 2001 From: Yann Gautier yann.gautier@foss.st.com Date: Thu, 17 Mar 2022 12:19:43 +0100 Subject: [PATCH] mmc: mmci: stm32: correctly check all elements of sg list

Use sg and not data->sg when checking sg list elements. Else only the first element alignment is checked. The last element should be checked the same way, for_each_sg already set sg to sg_next(sg).

Fixes: 46b723dd867d ("mmc: mmci: add stm32 sdmmc variant") Cc: stable@vger.kernel.org Signed-off-by: Yann Gautier yann.gautier@foss.st.com Link: https://lore.kernel.org/r/20220317111944.116148-2-yann.gautier@foss.st.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org

diff --git a/drivers/mmc/host/mmci_stm32_sdmmc.c b/drivers/mmc/host/mmci_stm32_sdmmc.c index 9c13f2c31365..4566d7fc9055 100644 --- a/drivers/mmc/host/mmci_stm32_sdmmc.c +++ b/drivers/mmc/host/mmci_stm32_sdmmc.c @@ -62,8 +62,8 @@ static int sdmmc_idma_validate_data(struct mmci_host *host, * excepted the last element which has no constraint on idmasize */ for_each_sg(data->sg, sg, data->sg_len - 1, i) {

• if (!IS_ALIGNED(data->sg->offset, sizeof(u32)) ||
  

•     !IS_ALIGNED(data->sg->length, SDMMC_IDMA_BURST)) {
  

• if (!IS_ALIGNED(sg->offset, sizeof(u32)) ||
  

•     !IS_ALIGNED(sg->length, SDMMC_IDMA_BURST)) {
  dev_err(mmc_dev(host->mmc),
  	"unaligned scatterlist: ofst:%x length:%d\n",
  	data->sg->offset, data->sg->length);
  

@@ -71,7 +71,7 @@ static int sdmmc_idma_validate_data(struct mmci_host *host, } }

• if (!IS_ALIGNED(data->sg->offset, sizeof(u32))) {

• if (!IS_ALIGNED(sg->offset, sizeof(u32))) { dev_err(mmc_dev(host->mmc), "unaligned last scatterlist: ofst:%x length:%d\n", data->sg->offset, data->sg->length);