Re: [PATCH 17/17] mmc: pass queue_limits to blk_mq_alloc_disk

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On Tue, Feb 20, 2024 at 11:01 PM Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> On Thu, Feb 15, 2024 at 9:16 AM Christoph Hellwig <hch@xxxxxx> wrote:
> > Pass the queue limit set at initialization time directly to
> > blk_mq_alloc_disk instead of updating it right after the allocation.
> >
> > This requires refactoring the code a bit so that what was mmc_setup_queue
> > before also allocates the gendisk now and actually sets all limits.
> >
> > Signed-off-by: Christoph Hellwig <hch@xxxxxx>
>
> Thanks for your patch, which is now commit 616f876617927732 ("mmc: pass
> queue_limits to blk_mq_alloc_disk") in block/for-next.
>
> I have bisected the following failure on White-Hawk (also seen on
> other R-Car Gen3/4 systems) to this commit:
>
>     renesas_sdhi_internal_dmac ee140000.mmc: mmc0 base at
> 0x00000000ee140000, max clock rate 200 MHz
>     mmc0: new HS400 MMC card at address 0001
>     ------------[ cut here ]------------
>     WARNING: CPU: 1 PID: 20 at block/blk-settings.c:202
> blk_validate_limits+0x12c/0x1e0

Actual capacity should be:

mmc0: new HS400 MMC card at address 0001
mmcblk0: mmc0:0001 G1M15L 29.6 GiB
mmcblk0boot0: mmc0:0001 G1M15L 31.5 MiB
mmcblk0boot1: mmc0:0001 G1M15L 31.5 MiB
mmcblk0rpmb: mmc0:0001 G1M15L 4.00 MiB, chardev (245:0)

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds





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