Re: [PATCH] habanalabs: use %pad for printing a dma_addr_t

From: Oded Gabbay
Date: Tue Jul 09 2019 - 02:08:13 EST


On Mon, Jul 8, 2019 at 3:39 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:
>
> dma_addr_t might be different sizes depending on the configuration,
> so we cannot print it as %llx:
>
> drivers/misc/habanalabs/goya/goya.c: In function 'goya_sw_init':
> drivers/misc/habanalabs/goya/goya.c:698:21: error: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'dma_addr_t' {aka 'unsigned int'} [-Werror=format=]
>
> Use the special %pad format string. This requires passing the
> argument by reference.
>
> Fixes: 2a51558c8c7f ("habanalabs: remove DMA mask hack for Goya")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> drivers/misc/habanalabs/goya/goya.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
> index 75294ec65257..60e509f64051 100644
> --- a/drivers/misc/habanalabs/goya/goya.c
> +++ b/drivers/misc/habanalabs/goya/goya.c
> @@ -695,8 +695,8 @@ static int goya_sw_init(struct hl_device *hdev)
> goto free_dma_pool;
> }
>
> - dev_dbg(hdev->dev, "cpu accessible memory at bus address 0x%llx\n",
> - hdev->cpu_accessible_dma_address);
> + dev_dbg(hdev->dev, "cpu accessible memory at bus address %pad\n",
> + &hdev->cpu_accessible_dma_address);
>
> hdev->cpu_accessible_dma_pool = gen_pool_create(ilog2(32), -1);
> if (!hdev->cpu_accessible_dma_pool) {
> --
> 2.20.0
>

This patch is:
Reviewed-by: Oded Gabbay <oded.gabbay@xxxxxxxxx>

Thanks! applied to -next