Re: [PATCH v3] mmc: sunxi: remove output of virtual base address

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On 23 July 2018 at 17:34, Andre Przywara <andre.przywara@xxxxxxx> wrote:
> Recent Linux versions refuse to print actual virtual kernel addresses,
> to not give a hint about the location of the kernel in a randomized virtual
> address space. This affects the output of the sunxi MMC controller
> driver, which now produces the rather uninformative line:
>
> [    1.482660] sunxi-mmc 1c0f000.mmc: base:0x(____ptrval____) irq:8
>
> Since the virtual base address is not really interesting in the first
> place, let's just drop this value. The same applies to Linux' notion of
> the interrupt number, which is independent from the GIC SPI number.
> We have the physical address as part of the DT node name, which is way
> more useful for debugging purposes.
> To keep a success message in the driver, we make this purpose explicit
> with the word "initialized", plus print some information that is not too
> obvious and that we learned while probing the device:
> the maximum request size and whether it uses the new timing mode.
> So the output turns into:
> [    1.750626] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB, uses new timings mode
> [    1.786699] sunxi-mmc 1c11000.mmc: initialized, max. request size: 2048 KB
>
> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>

Thanks, applied for next!

Kind regards
Uffe

> ---
>  drivers/mmc/host/sunxi-mmc.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
> index 8e7f3e35ee3d..c18cf035ac00 100644
> --- a/drivers/mmc/host/sunxi-mmc.c
> +++ b/drivers/mmc/host/sunxi-mmc.c
> @@ -1407,7 +1407,10 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
>         if (ret)
>                 goto error_free_dma;
>
> -       dev_info(&pdev->dev, "base:0x%p irq:%u\n", host->reg_base, host->irq);
> +       dev_info(&pdev->dev, "initialized, max. request size: %u KB%s\n",
> +                mmc->max_req_size >> 10,
> +                host->use_new_timings ? ", uses new timings mode" : "");
> +
>         return 0;
>
>  error_free_dma:
> --
> 2.14.4
>
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