linux-kernel - Re: [PATCH] ch_ktls: fix build warning for ipv4-only config

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Date:   Sat, 05 Dec 2020 21:00:07 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     ayush.sawal@...lsio.com, vinay.yadav@...lsio.com,
        rohitm@...lsio.com, davem@...emloft.net, kuba@...nel.org,
        arnd@...db.de, natechancellor@...il.com, ndesaulniers@...gle.com,
        yuehaibing@...wei.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, clang-built-linux@...glegroups.com
Subject: Re: [PATCH] ch_ktls: fix build warning for ipv4-only config

Hello:

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

On Thu,  3 Dec 2020 23:26:16 +0100 you wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> When CONFIG_IPV6 is disabled, clang complains that a variable
> is uninitialized for non-IPv4 data:
> 
> drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c:1046:6: error: variable 'cntrl1' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
>         if (tx_info->ip_family == AF_INET) {
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c:1059:2: note: uninitialized use occurs here
>         cntrl1 |= T6_TXPKT_ETHHDR_LEN_V(maclen - ETH_HLEN) |
>         ^~~~~~
> 
> [...]

Here is the summary with links:
  - ch_ktls: fix build warning for ipv4-only config
    https://git.kernel.org/netdev/net/c/a54ba3465d86

You are awesome, thank you!
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