Re: [PATCH 1/2] net: ethernet: 3c515: Fix cast from pointer to integer of different size
From: David Miller
Date: Mon Jan 06 2020 - 16:32:06 EST
From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Date: Sat, 4 Jan 2020 15:33:05 +0100
> Pointer passed as integer should be cast to unsigned long to
> avoid warning (compile testing on alpha architecture):
> drivers/net/ethernet/3com/3c515.c: In function ʽcorkscrew_start_xmitʼ:
> drivers/net/ethernet/3com/3c515.c:1066:8: warning:
> cast from pointer to integer of different size [-Wpointer-to-int-cast]
> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
> Only compile tested
Sorry, I'm not applying these two.
It is clear that these drivers only work properly on 32-bit architectures
where virtual address equals the DMA address.
Making this warning goes away creates a false sense that they are in
fact 64-bit clean and capable, they are not.