Re: [PATCH net-next] net: airoha: fix ARRAY_SIZE() division by zero on UP builds

[email protected] Wed, 05 Aug 2026 01:00:08 +0000

Newsgroups	gmane.linux.network,gmane.linux.ports.arm.kernel,gmane.linux.ports.arm.mediatek
Message-ID	<178589160888.3856351.13210051056800049801.git-patchwork-notify@kernel.org>

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <[email protected]>:

On Fri, 31 Jul 2026 17:47:38 +0200 you wrote:
> airoha_alloc_gdm_device() initializes the txq_lock[] array iterating
> over ARRAY_SIZE(dev->txq_lock). ARRAY_SIZE() expands to
> sizeof(dev->txq_lock) / sizeof((dev->txq_lock)[0]), but on UP builds
> (CONFIG_SMP unset, CONFIG_DEBUG_SPINLOCK unset) arch_spinlock_t is an
> empty struct, so sizeof(spinlock_t) is zero and the expression is a
> compile-time division by zero (undefined behavior), reported by clang
> as "division by zero is undefined [-Wdivision-by-zero]".
> 
> [...]

Here is the summary with links:
  - [net-next] net: airoha: fix ARRAY_SIZE() division by zero on UP builds
    https://git.kernel.org/netdev/net-next/c/c509971352a6

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html