Message-ID: <8ed35f3f-b0a2-dd93-e78c-33233bc6497a@nbd.name>
Date:   Thu, 25 Nov 2021 19:44:26 +0100
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Subject: Re: [PATCH] mt76: eeprom: tolerate corrected bit-flips
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To:     Daniel Golle <daniel@makrotopia.org>,
        linux-mediatek@lists.infradead.org, linux-wireless@vger.kernel.org
Cc:     Ryder Lee <ryder.lee@mediatek.com>,
        Lorenzo Bianconi <lorenzo@kernel.org>,
        Hauke Mehrtens <hauke@hauke-m.de>
References: <YZ/XvfwzqUyjmBCm@makrotopia.org>
From:   Felix Fietkau <nbd@nbd.name>
In-Reply-To: <YZ/XvfwzqUyjmBCm@makrotopia.org>
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On 2021-11-25 19:36, Daniel Golle wrote:
> mtd_read() returns -EUCLEAN in case of corrected bit-flips.
> As data was read, don't error out in this case.
> 
> Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
> Signed-off-by: Daniel Golle <daniel@makrotopia.org>
> ---
>   drivers/net/wireless/mediatek/mt76/eeprom.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c
> index 2d58aa31db934..0eb98f7ff7ec0 100644
> --- a/drivers/net/wireless/mediatek/mt76/eeprom.c
> +++ b/drivers/net/wireless/mediatek/mt76/eeprom.c
> @@ -65,7 +65,7 @@ int mt76_get_of_eeprom(struct mt76_dev *dev, void *eep, int offset, int len)
>   	offset = be32_to_cpup(list);
>   	ret = mtd_read(mtd, offset, len, &retlen, eep);
>   	put_mtd_device(mtd);
> -	if (ret) {
> +	if (ret && !mtd_is_bitflip(err)) {
I don't think this will even compile (err vs ret)

- Felix