LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Nick Desaulniers <ndesaulniers@google.com>
To: Nathan Chancellor <nathan@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Phillip Potter <phil@philpotter.co.uk>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
	clang-built-linux@googlegroups.com
Subject: Re: [PATCH 3/4] staging: r8188eu: Remove self assignment in get_rx_power_val_by_reg()
Date: Wed, 4 Aug 2021 11:37:55 -0700	[thread overview]
Message-ID: <CAKwvOdkehOWitL+o4s2jWiPk0eTmcjrntiw2rLbpiGynTqSfRw@mail.gmail.com> (raw)
In-Reply-To: <20210803223609.1627280-4-nathan@kernel.org>

On Tue, Aug 3, 2021 at 3:36 PM Nathan Chancellor <nathan@kernel.org> wrote:
>
> Clang warns:
>
> drivers/staging/r8188eu/hal/rtl8188e_rf6052.c:344:13: warning:
> explicitly assigning value of variable of type 'u32' (aka 'unsigned
> int') to itself [-Wself-assign]
>                         writeVal = writeVal;
>                         ~~~~~~~~ ^ ~~~~~~~~
> 1 warning generated.
>
> Remove this branch as it is useless.
>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>
> ---
>  drivers/staging/r8188eu/hal/rtl8188e_rf6052.c | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/drivers/staging/r8188eu/hal/rtl8188e_rf6052.c b/drivers/staging/r8188eu/hal/rtl8188e_rf6052.c
> index 335b120ce603..77889dc05858 100644
> --- a/drivers/staging/r8188eu/hal/rtl8188e_rf6052.c
> +++ b/drivers/staging/r8188eu/hal/rtl8188e_rf6052.c
> @@ -340,8 +340,6 @@ static void get_rx_power_val_by_reg(struct adapter *Adapter, u8 Channel,
>                 /*  This mechanism is only applied when Driver-Highpower-Mechanism is OFF. */
>                 if (pdmpriv->DynamicTxHighPowerLvl == TxHighPwrLevel_BT1)
>                         writeVal = writeVal - 0x06060606;
> -               else if (pdmpriv->DynamicTxHighPowerLvl == TxHighPwrLevel_BT2)
> -                       writeVal = writeVal;

Hopefully the author didn't mean to subtract another magic constant
like they did above. This also eliminates the last use of
TxHighPwrLevel_BT2, but it's probably ok to keep the define in
drivers/staging/r8188eu/include/odm.h.

Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

>                 *(pOutWriteVal+rf) = writeVal;
>         }
>  }
> --
> 2.33.0.rc0


-- 
Thanks,
~Nick Desaulniers

  reply	other threads:[~2021-08-04 18:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 22:36 [PATCH 0/4] staging: r8188eu: Fix clang warnings Nathan Chancellor
2021-08-03 22:36 ` [PATCH 1/4] staging: r8188eu: Remove _rtw_spinlock_free() Nathan Chancellor
2021-08-03 22:36 ` [PATCH 2/4] staging: r8188eu: Remove unnecessary parentheses Nathan Chancellor
2021-08-04 17:46   ` Nick Desaulniers
2021-08-04 18:46     ` Nathan Chancellor
2021-08-03 22:36 ` [PATCH 3/4] staging: r8188eu: Remove self assignment in get_rx_power_val_by_reg() Nathan Chancellor
2021-08-04 18:37   ` Nick Desaulniers [this message]
2021-08-04 18:49     ` Nathan Chancellor
2021-08-03 22:36 ` [PATCH 4/4] staging: r8188eu: Remove pointless NULL check in rtw_check_join_candidate() Nathan Chancellor
2021-08-05 11:11 ` [PATCH 0/4] staging: r8188eu: Fix clang warnings Greg Kroah-Hartman
2021-08-05 18:58 ` [PATCH v2 0/3] " Nathan Chancellor
2021-08-05 18:58   ` [PATCH v2 1/3] staging: r8188eu: Remove unnecessary parentheses Nathan Chancellor
2021-08-05 18:58   ` [PATCH v2 2/3] staging: r8188eu: Remove self assignment in get_rx_power_val_by_reg() Nathan Chancellor
2021-08-05 18:58   ` [PATCH v2 3/3] staging: r8188eu: Remove pointless NULL check in rtw_check_join_candidate() Nathan Chancellor
2021-08-05 19:51     ` Nick Desaulniers

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAKwvOdkehOWitL+o4s2jWiPk0eTmcjrntiw2rLbpiGynTqSfRw@mail.gmail.com \
    --to=ndesaulniers@google.com \
    --cc=Larry.Finger@lwfinger.net \
    --cc=clang-built-linux@googlegroups.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-staging@lists.linux.dev \
    --cc=nathan@kernel.org \
    --cc=phil@philpotter.co.uk \
    --subject='Re: [PATCH 3/4] staging: r8188eu: Remove self assignment in get_rx_power_val_by_reg()' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).