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Date:   Wed, 27 May 2020 11:35:24 -0700 (PDT)
From:   David Miller <>
Subject: Re: [PATCH] bridge: multicast: work around clang bug

From: Arnd Bergmann <>
Date: Wed, 27 May 2020 15:51:13 +0200

> Clang-10 and clang-11 run into a corner case of the register
> allocator on 32-bit ARM, leading to excessive stack usage from
> register spilling:
> net/bridge/br_multicast.c:2422:6: error: stack frame size of 1472 bytes in function 'br_multicast_get_stats' [-Werror,-Wframe-larger-than=]
> Work around this by marking one of the internal functions as
> noinline_for_stack.
> Link:
> Signed-off-by: Arnd Bergmann <>


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