On Wed, Feb 20, 2019 at 1:29 AM Yann Sionneau wrote:
>
> I'm not sure dma_alloc_coherent() should return zeroed out memory.
>
> I'm pretty sure it does not.
>
> mips arch seems to memset it to 0, but not all arch do that.
>
It is definitely the semantics in latest kernel code, see e.g. here:
I'm not sure dma_alloc_coherent() should return zeroed out memory.
I'm pretty sure it does not.
mips arch seems to memset it to 0, but not all arch do that.
On 2/20/19 8:29 AM, Andrey Smirnov wrote:
Memory returned by dma_alloc_coherent() should already be zeroed
out, so there's no need to do
Memory returned by dma_alloc_coherent() should already be zeroed
out, so there's no need to do this explicitly.
Signed-off-by: Andrey Smirnov
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drivers/usb/host/xhci-hcd.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/usb/host/xhci-hcd.c b/drivers/usb/host/xhci-hcd.c
index
