Re: [PATCH] dmaengine: ppc4xx: fix format specifiers for size_t arguments

[Frank Li]

On Thu, Sep 10, 2026 at 02:14:40PM -0700, Rosen Penev wrote:

dmaengine: ppc4xx: change to %zu format specifiers for size_t arguments.

Frank
> Several dev_err, dev_dbg, pr_debug, and printk calls use %d or %u
> format specifiers for size_t arguments (len, pool_size).  Fix them
> to use %zu to avoid warnings on 64-bit builds.
>
> Fixes: 12458ea06efd7 ("ppc440spe-adma: adds updated ppc440spe adma driver")
> Assisted-by: opencode:big-pickle
> Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
> ---
>  drivers/dma/ppc4xx/adma.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
> index 279a431ccae3..bcc54d584e2b 100644
> --- a/drivers/dma/ppc4xx/adma.c
> +++ b/drivers/dma/ppc4xx/adma.c
> @@ -799,7 +799,7 @@ static int ppc440spe_chan_xor_slot_count(size_t len, int src_cnt,
>  	if (likely(len <= PPC440SPE_ADMA_XOR_MAX_BYTE_COUNT))
>  		return slot_cnt;
>
> -	printk(KERN_ERR "%s: len %d > max %d !!\n",
> +	printk(KERN_ERR "%s: len %zu > max %d !!\n",
>  		__func__, len, PPC440SPE_ADMA_XOR_MAX_BYTE_COUNT);
>  	BUG();
>  	return slot_cnt;
> @@ -1989,7 +1989,7 @@ static struct dma_async_tx_descriptor *ppc440spe_adma_prep_dma_memcpy(
>  	spin_lock_bh(&ppc440spe_chan->lock);
>
>  	dev_dbg(ppc440spe_chan->device->common.dev,
> -		"ppc440spe adma%d: %s len: %u int_en %d\n",
> +		"ppc440spe adma%d: %s len: %zu int_en %d\n",
>  		ppc440spe_chan->device->id, __func__, len,
>  		flags & DMA_PREP_INTERRUPT ? 1 : 0);
>  	slot_cnt = slots_per_op = 1;
> @@ -2030,7 +2030,7 @@ static struct dma_async_tx_descriptor *ppc440spe_adma_prep_dma_xor(
>  	BUG_ON(len > PPC440SPE_ADMA_XOR_MAX_BYTE_COUNT);
>
>  	dev_dbg(ppc440spe_chan->device->common.dev,
> -		"ppc440spe adma%d: %s src_cnt: %d len: %u int_en: %d\n",
> +		"ppc440spe adma%d: %s src_cnt: %d len: %zu int_en: %d\n",
>  		ppc440spe_chan->device->id, __func__, src_cnt, len,
>  		flags & DMA_PREP_INTERRUPT ? 1 : 0);
>
> @@ -2279,7 +2279,7 @@ static struct ppc440spe_adma_desc_slot *ppc440spe_dma01_prep_pq(
>  	unsigned long op = 0;
>  	unsigned char mult = 1;
>
> -	pr_debug("%s: dst_cnt %d, src_cnt %d, len %d\n",
> +	pr_debug("%s: dst_cnt %d, src_cnt %d, len %zu\n",
>  		 __func__, dst_cnt, src_cnt, len);
>  	/*  select operations WXOR/RXOR depending on the
>  	 * source addresses of operators and the number
> @@ -2553,7 +2553,7 @@ static struct dma_async_tx_descriptor *ppc440spe_adma_prep_dma_pq(
>  	BUG_ON(!dst_cnt);
>
>  	dev_dbg(ppc440spe_chan->device->common.dev,
> -		"ppc440spe adma%d: %s src_cnt: %d len: %u int_en: %d\n",
> +		"ppc440spe adma%d: %s src_cnt: %d len: %zu int_en: %d\n",
>  		ppc440spe_chan->device->id, __func__, src_cnt, len,
>  		flags & DMA_PREP_INTERRUPT ? 1 : 0);
>
> @@ -4077,7 +4077,7 @@ static int ppc440spe_adma_probe(struct platform_device *ofdev)
>  					adev->pool_size, &adev->dma_desc_pool,
>  					GFP_KERNEL);
>  	if (adev->dma_desc_pool_virt == NULL) {
> -		dev_err(&ofdev->dev, "failed to allocate %d bytes of coherent "
> +		dev_err(&ofdev->dev, "failed to allocate %zu bytes of coherent "
>  			"memory for hardware descriptors\n",
>  			adev->pool_size);
>  		initcode = PPC_ADMA_INIT_COHERENT;
> --
> 2.55.0
>