linux-kernel - Re: [PATCH] RDMA/core: reduce stack using in nldev_stat_get

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Message-Id: <175084808302.620355.8744295923140537631.b4-ty@kernel.org>
Date: Wed, 25 Jun 2025 06:41:23 -0400
From: Leon Romanovsky <leon@...nel.org>
To: Jason Gunthorpe <jgg@...pe.ca>, Arnd Bergmann <arnd@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>, Chiara Meiohas <cmeiohas@...dia.com>, 
 Mark Zhang <markzhang@...dia.com>, Michael Guralnik <michaelgur@...dia.com>, 
 linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] RDMA/core: reduce stack using in nldev_stat_get_doit()


On Fri, 20 Jun 2025 13:33:26 +0200, Arnd Bergmann wrote:
> In the s390 defconfig, gcc-10 and earlier end up inlining three functions
> into nldev_stat_get_doit(), and each of them uses some 600 bytes of stack.
> 
> The result is a function with an overly large stack frame and a warning:
> 
> drivers/infiniband/core/nldev.c:2466:1: error: the frame size of 1720 bytes is larger than 1280 bytes [-Werror=frame-larger-than=]
> 
> [...]

Applied, thanks!

[1/1] RDMA/core: reduce stack using in nldev_stat_get_doit()
      https://git.kernel.org/rdma/rdma/c/43163f4c30f94d

Best regards,
-- 
Leon Romanovsky <leon@...nel.org>