Re: [PATCH] bridge: multicast: work around clang bug

[David Miller]

From: Arnd Bergmann <arnd@xxxxxxxx>
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: https://bugs.llvm.org/show_bug.cgi?id=45802#c9
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Applied.