dmaengine: shdma: increase size of 'dev_id'

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@kernel.org>

diff --git a/drivers/dma/sh/shdma.h b/drivers/dma/sh/shdma.h
index 9c121a4b33ad829c77ae88c094fc80d942b9d709..f97d80343aea42fd399e93da3492e07a8fa86b35 100644 (file)
--- 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;
 };