Re: [PATCH v2] gpu: host1x: Fix compiler errors by converting to dma_addr_t

From: Thierry Reding
Date: Fri May 18 2018 - 04:25:51 EST


On Wed, May 16, 2018 at 12:22:04PM +0200, Emil Goode wrote:
> The compiler is complaining with the following errors:
>
> drivers/gpu/host1x/cdma.c:94:48: error:
> passing argument 3 of âdma_alloc_wcâ from incompatible pointer type
> [-Werror=incompatible-pointer-types]
>
> drivers/gpu/host1x/cdma.c:113:48: error:
> passing argument 3 of âdma_alloc_wcâ from incompatible pointer type
> [-Werror=incompatible-pointer-types]
>
> The expected pointer type of the third argument to dma_alloc_wc() is
> dma_addr_t but phys_addr_t is passed.
>
> Change the phys member of struct push_buffer to be dma_addr_t so that we
> pass the correct type to dma_alloc_wc().
> Also check pb->mapped for non-NULL in the destroy function as that is the
> right way of checking if dma_alloc_wc() was successful.
>
> Signed-off-by: Emil Goode <emil.fsw@xxxxxxxx>
> ---
> v2: - Change the phys member type instead of adding casts.
> - Check pb->mapped in the destroy function as 0 is a valid value
> for dma_addr_t.
>
> drivers/gpu/host1x/cdma.c | 2 +-
> drivers/gpu/host1x/cdma.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)

Applied, thanks.

Thierry

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