linux-kernel - Re: [PATCH] net: qed: reduce stack usage for TLV processing

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Message-Id: 
 <175068540626.3152722.11490388428832541622.git-patchwork-notify@kernel.org>
Date: Mon, 23 Jun 2025 13:30:06 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Arnd Bergmann <arnd@...nel.org>
Cc: manishc@...vell.com, andrew+netdev@...n.ch, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, nathan@...nel.org,
 arnd@...db.de, nick.desaulniers+lkml@...il.com, morbo@...gle.com,
 justinstitt@...gle.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 llvm@...ts.linux.dev
Subject: Re: [PATCH] net: qed: reduce stack usage for TLV processing

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Fri, 20 Jun 2025 15:09:53 +0200 you wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> clang gets a bit confused by the code in the qed_mfw_process_tlv_req and
> ends up spilling registers to the stack hundreds of times. When sanitizers
> are enabled, this can end up blowing the stack warning limit:
> 
> drivers/net/ethernet/qlogic/qed/qed_mng_tlv.c:1244:5: error: stack frame size (1824) exceeds limit (1280) in 'qed_mfw_process_tlv_req' [-Werror,-Wframe-larger-than]
> 
> [...]

Here is the summary with links:
  - net: qed: reduce stack usage for TLV processing
    https://git.kernel.org/netdev/net/c/95b6759a8183

You are awesome, thank you!
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