Re: [PATCH] RDMA: Add ib_virt_dma_to_page()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Mar 30, 2023 at 4:26 PM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote:

> Make it clearer what is going on by adding a function to go back from the
> "virtual" dma_addr to a struct page. This is used in the
> ib_uses_virt_dma() style drivers (siw, rxe, hfi, qib).
>
> Call it instead of a naked virt_to_page() when working with dma_addr
> values encoded by the various ib_map functions.
>
> This also fixes the vir_to_page() casting problem Linus Walleij has been
> chasing.
>
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Excellent, thanks Jason!
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij




[Index of Archives]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]     [Yosemite Photos]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux