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From:   Kalle Valo <kvalo@codeaurora.org>
To:     Marcus Folkesson <marcus.folkesson@gmail.com>
Cc:     Ajay Singh <ajay.kathat@microchip.com>,
        Claudiu Beznea <claudiu.beznea@microchip.com>,
        "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] wilc1000: write value to WILC_INTR2_ENABLE register
References: <20210224163706.519658-1-marcus.folkesson@gmail.com>
Date:   Wed, 24 Feb 2021 18:43:59 +0200
In-Reply-To: <20210224163706.519658-1-marcus.folkesson@gmail.com> (Marcus
        Folkesson's message of "Wed, 24 Feb 2021 17:37:06 +0100")
Message-ID: <87pn0pfmb4.fsf@codeaurora.org>
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Marcus Folkesson <marcus.folkesson@gmail.com> writes:

> Write the value instead of reading it twice.
>
> Fixes: 5e63a598441a ("staging: wilc1000: added 'wilc_' prefix for function in wilc_sdio.c file")
>
> Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
> ---
>  drivers/net/wireless/microchip/wilc1000/sdio.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/microchip/wilc1000/sdio.c b/drivers/net/wireless/microchip/wilc1000/sdio.c
> index 351ff909ab1c..e14b9fc2c67a 100644
> --- a/drivers/net/wireless/microchip/wilc1000/sdio.c
> +++ b/drivers/net/wireless/microchip/wilc1000/sdio.c
> @@ -947,7 +947,7 @@ static int wilc_sdio_sync_ext(struct wilc *wilc, int nint)
>  			for (i = 0; (i < 3) && (nint > 0); i++, nint--)
>  				reg |= BIT(i);
>  
> -			ret = wilc_sdio_read_reg(wilc, WILC_INTR2_ENABLE, &reg);
> +			ret = wilc_sdio_write_reg(wilc, WILC_INTR2_ENABLE, reg);

To me it looks like the bug existed before commit 5e63a598441a:

-			ret = sdio_read_reg(wilc, WILC_INTR2_ENABLE, &reg);
+			ret = wilc_sdio_read_reg(wilc, WILC_INTR2_ENABLE, &reg);

https://git.kernel.org/linus/5e63a598441a

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