linux-kernel - Re: [PATCH 1/4] rtw88: Add packed attribute to the eFuse structs

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Message-ID: <deb574a080e603e9dd5eee36c1a3fe7c88588d59.camel@realtek.com>
Date:   Thu, 29 Dec 2022 23:47:25 +0000
From:   Ping-Ke Shih <pkshih@...ltek.com>
To:     "martin.blumenstingl@...glemail.com" 
        <martin.blumenstingl@...glemail.com>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
CC:     "kvalo@...nel.org" <kvalo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "tony0620emma@...il.com" <tony0620emma@...il.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] rtw88: Add packed attribute to the eFuse structs

On Thu, 2022-12-29 at 13:48 +0100, Martin Blumenstingl wrote:
> The eFuse definitions in the rtw88 are using structs to describe the
> eFuse contents. Add the packed attribute to all structs used for the
> eFuse description so the compiler doesn't add gaps or re-order
> attributes.
> 
> Also split the res2 eFuse field (which for some reason has parts of it's
> data in two separate u8 fields) to avoid the following warning, now that
> their surrounding struct has the packed attribute:
>   note: offset of packed bit-field 'res2' has changed in GCC 4.4
> 
> Fixes: e3037485c68e ("rtw88: new Realtek 802.11ac driver")
> Fixes: ab0a031ecf29 ("rtw88: 8723d: Add read_efuse to recognize efuse info from map")
> Fixes: 769a29ce2af4 ("rtw88: 8821c: add basic functions")
> Fixes: 87caeef032fc ("wifi: rtw88: Add rtw8723du chipset support")
> Fixes: aff5ffd718de ("wifi: rtw88: Add rtw8821cu chipset support")
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

Reviewed-by: Ping-Ke Shih <pkshih@...ltek.com>

Thanks for your work!