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Subject: Re: [PATCH net-next] net: ethernet: rmnet: Restructure if checks to avoid
 uninitialized warning
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <162276000605.13062.14467575723320615318.git-patchwork-notify@kernel.org>
Date:   Thu, 03 Jun 2021 22:40:06 +0000
References: <20210603173410.310362-1-nathan@kernel.org>
In-Reply-To: <20210603173410.310362-1-nathan@kernel.org>
To:     Nathan Chancellor <nathan@kernel.org>
Cc:     subashab@codeaurora.org, stranche@codeaurora.org,
        davem@davemloft.net, kuba@kernel.org, ndesaulniers@google.com,
        sharathv@codeaurora.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Precedence: bulk

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Thu,  3 Jun 2021 10:34:10 -0700 you wrote:
> Clang warns that proto in rmnet_map_v5_checksum_uplink_packet() might be
> used uninitialized:
> 
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:283:14: warning:
> variable 'proto' is used uninitialized whenever 'if' condition is false
> [-Wsometimes-uninitialized]
>                 } else if (skb->protocol == htons(ETH_P_IPV6)) {
>                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:295:36: note:
> uninitialized use occurs here
>                 check = rmnet_map_get_csum_field(proto, trans);
>                                                  ^~~~~
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:283:10: note:
> remove the 'if' if its condition is always true
>                 } else if (skb->protocol == htons(ETH_P_IPV6)) {
>                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:270:11: note:
> initialize the variable 'proto' to silence this warning
>                 u8 proto;
>                         ^
>                          = '\0'
> 1 warning generated.
> 
> [...]

Here is the summary with links:
  - [net-next] net: ethernet: rmnet: Restructure if checks to avoid uninitialized warning
    https://git.kernel.org/netdev/net-next/c/118de6106735

You are awesome, thank you!
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