Patch "dmaengine: shdma: increase size of 'dev_id'" has been added to the 5.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    dmaengine: shdma: increase size of 'dev_id'

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     dmaengine-shdma-increase-size-of-dev_id.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4a6f927adbab2a6654568e5621fe79d6ca7ca297
Author: Vinod Koul <vkoul@xxxxxxxxxx>
Date:   Fri Jan 19 18:10:44 2024 +0530

    dmaengine: shdma: increase size of 'dev_id'
    
    [ Upstream commit 404290240827c3bb5c4e195174a8854eef2f89ac ]
    
    We seem to have hit warnings of 'output may be truncated' which is fixed
    by increasing the size of 'dev_id'
    
    drivers/dma/sh/shdmac.c: In function ‘sh_dmae_probe’:
    drivers/dma/sh/shdmac.c:541:34: error: ‘%d’ directive output may be truncated writing between 1 and 10 bytes into a region of size 9 [-Werror=format-truncation=]
      541 |                          "sh-dmae%d.%d", pdev->id, id);
          |                                  ^~
    In function ‘sh_dmae_chan_probe’,
        inlined from ‘sh_dmae_probe’ at drivers/dma/sh/shdmac.c:845:9:
    drivers/dma/sh/shdmac.c:541:26: note: directive argument in the range [0, 2147483647]
      541 |                          "sh-dmae%d.%d", pdev->id, id);
          |                          ^~~~~~~~~~~~~~
    drivers/dma/sh/shdmac.c:541:26: note: directive argument in the range [0, 19]
    drivers/dma/sh/shdmac.c:540:17: note: ‘snprintf’ output between 11 and 21 bytes into a destination of size 16
      540 |                 snprintf(sh_chan->dev_id, sizeof(sh_chan->dev_id),
          |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      541 |                          "sh-dmae%d.%d", pdev->id, id);
          |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    
    Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/dma/sh/shdma.h b/drivers/dma/sh/shdma.h
index 9c121a4b33ad8..f97d80343aea4 100644
--- a/drivers/dma/sh/shdma.h
+++ b/drivers/dma/sh/shdma.h
@@ -25,7 +25,7 @@ struct sh_dmae_chan {
 	const struct sh_dmae_slave_config *config; /* Slave DMA configuration */
 	int xmit_shift;			/* log_2(bytes_per_xfer) */
 	void __iomem *base;
-	char dev_id[16];		/* unique name per DMAC of channel */
+	char dev_id[32];		/* unique name per DMAC of channel */
 	int pm_error;
 	dma_addr_t slave_addr;
 };