linux-kernel - Re: [PATCH V8 01/23] mmc: core: Cleanup printing of speed mode at card insertion

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Date:   Wed, 21 Jun 2023 15:44:14 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Victor Shih <victorshihgli@...il.com>
Cc:     adrian.hunter@...el.com, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org, benchuanggli@...il.com,
        HL.Liu@...esyslogic.com.tw, Greg.tu@...esyslogic.com.tw,
        takahiro.akashi@...aro.org, dlunev@...omium.org,
        Victor Shih <victor.shih@...esyslogic.com.tw>
Subject: Re: [PATCH V8 01/23] mmc: core: Cleanup printing of speed mode at
 card insertion

On Wed, 21 Jun 2023 at 12:02, Victor Shih <victorshihgli@...il.com> wrote:
>
> From: Victor Shih <victor.shih@...esyslogic.com.tw>

Please do not claim authorship of patches that haven't been authored
by you. Of course, there is a balance, if you need to make bigger
modifications, then you deserve to claim the authorship, but that
isn't the case here I think.

This applies to a couple of more patches in the series, I will not
comment on them in this regard, but leave that to you to look over at
the next submission.

>
> The current print of the bus speed mode in mmc_add_card() has grown over
> the years and is now difficult to parse. Let's clean up the code and also
> take the opportunity to properly announce "DDR" for eMMCs as
> "high speed DDR", which is according to the eMMC spec.
>
> Updates in V8:
>  - Modify commit message.
>
> Updates in V7:
>  - Remove unnecessary parentheses.
>
> Updates in V6:
>  - Adjust the position of matching brackets.

I appreciate the version history per patch. However, this doesn't
belong in the commit message.

Instead you have to manually edit each formatted patch to add this,
exactly where see below.

>
> Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
> Signed-off-by: Victor Shih <victor.shih@...esyslogic.com.tw>
> ---

After this line you can add comments and version history for the
patch. In this way, it will not be a part of the commit message when
applying.

Complete the section by adding three new dashes and a newline - this
keeps the patch format correct.

---

>  drivers/mmc/core/bus.c | 36 ++++++++++++++++++++----------------
>  1 file changed, 20 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
> index 2c3074a605fc..cf32cf135781 100644
> --- a/drivers/mmc/core/bus.c
> +++ b/drivers/mmc/core/bus.c
> @@ -299,6 +299,7 @@ int mmc_add_card(struct mmc_card *card)
>  {
>         int ret;
>         const char *type;
> +       const char *speed_mode = "";
>         const char *uhs_bus_speed_mode = "";
>         static const char *const uhs_speeds[] = {
>                 [UHS_SDR12_BUS_SPEED] = "SDR12 ",
> @@ -337,27 +338,30 @@ int mmc_add_card(struct mmc_card *card)
>                 break;
>         }
>
> +       if (mmc_card_hs(card))
> +               speed_mode = "high speed ";
> +       else if (mmc_card_uhs(card))
> +               speed_mode = "ultra high speed ";
> +       else if (mmc_card_ddr52(card))
> +               speed_mode = "high speed DDR ";
> +       else if (mmc_card_hs200(card))
> +               speed_mode = "HS200 ";
> +       else if (mmc_card_hs400es(card))
> +               speed_mode = "HS400 Enhanced strobe ";
> +       else if (mmc_card_hs400(card))
> +               speed_mode = "HS400 ";
> +
>         if (mmc_card_uhs(card) &&
>                 (card->sd_bus_speed < ARRAY_SIZE(uhs_speeds)))
>                 uhs_bus_speed_mode = uhs_speeds[card->sd_bus_speed];
>
> -       if (mmc_host_is_spi(card->host)) {
> -               pr_info("%s: new %s%s%s card on SPI\n",
> -                       mmc_hostname(card->host),
> -                       mmc_card_hs(card) ? "high speed " : "",
> -                       mmc_card_ddr52(card) ? "DDR " : "",
> -                       type);
> -       } else {
> -               pr_info("%s: new %s%s%s%s%s%s card at address %04x\n",
> -                       mmc_hostname(card->host),
> -                       mmc_card_uhs(card) ? "ultra high speed " :
> -                       (mmc_card_hs(card) ? "high speed " : ""),
> -                       mmc_card_hs400(card) ? "HS400 " :
> -                       (mmc_card_hs200(card) ? "HS200 " : ""),
> -                       mmc_card_hs400es(card) ? "Enhanced strobe " : "",
> -                       mmc_card_ddr52(card) ? "DDR " : "",
> +       if (mmc_host_is_spi(card->host))
> +               pr_info("%s: new %s%s card on SPI\n",
> +                       mmc_hostname(card->host), speed_mode, type);
> +       else
> +               pr_info("%s: new %s%s%s card at address %04x\n",
> +                       mmc_hostname(card->host), speed_mode,
>                         uhs_bus_speed_mode, type, card->rca);
> -       }
>
>         mmc_add_card_debugfs(card);
>         card->dev.of_node = mmc_of_find_child_device(card->host, 0);
> --
> 2.25.1
>