Hi Finn,
On Thu, May 3, 2018 at 6:24 AM, Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx> wrote:
Set the device's coherent_dma_mask to avoid a WARNING splat.
Please see commit 205e1b7f51e4 ("dma-mapping: warn when there is
no coherent_dma_mask").
Cc: linux-m68k@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx>
Thanks for your patch!
--- a/drivers/net/ethernet/natsemi/macsonic.c
+++ b/drivers/net/ethernet/natsemi/macsonic.c
@@ -523,6 +523,10 @@ static int mac_sonic_platform_probe(struct platform_device *pdev)
struct sonic_local *lp;
int err;
+ err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (err)
+ return err;
+
dev = alloc_etherdev(sizeof(struct sonic_local));
if (!dev)
return -ENOMEM;
Shouldn't this be handled in the platform code that instantiates the device,
i.e. in arch/m68k/mac/config.c:mac_platform_init()?
Cfr. commit f61e64310b75733d ("m68k: set dma and coherent masks for platform
FEC ethernets").
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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