linux-kernel - Re: [PATCH] SCSI: buslogic: reduce stack usage

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Message-ID: <alpine.DEB.2.21.2602060029161.17548@angie.orcam.me.uk>
Date: Fri, 6 Feb 2026 00:39:23 +0000 (GMT)
From: "Maciej W. Rozycki" <macro@...am.me.uk>
To: Arnd Bergmann <arnd@...nel.org>
cc: Khalid Aziz <khalid@...ehiking.org>, 
    "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>, 
    "Martin K. Petersen" <martin.petersen@...cle.com>, 
    Arnd Bergmann <arnd@...db.de>, Al Viro <viro@...iv.linux.org.uk>, 
    Jens Axboe <axboe@...nel.dk>, Bart Van Assche <bvanassche@....org>, 
    Alexey Gladkov <legion@...nel.org>, linux-scsi@...r.kernel.org, 
    linux-kernel@...r.kernel.org
Subject: Re: [PATCH] SCSI: buslogic: reduce stack usage

On Tue, 3 Feb 2026, Arnd Bergmann wrote:

> Some randconfig builds run into excessive stack usage with gcc-14 or
> higher, which use __attribute__((cold)) where earlier versions did
> not do that:
> 
> drivers/scsi/BusLogic.c: In function 'blogic_init':
> drivers/scsi/BusLogic.c:2398:1: error: the frame size of 1680 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]

 Probably obviously correct, but still:

Tested-by: Maciej W. Rozycki <macro@...am.me.uk>

-- with GCC 15 and a BT-958 MultiMaster host adapter, and the rootfs as 
well as most other filesystems on devices downstream.  This is with 
slightly older 6.19.0-rc1 from the pci repo, which I've had handy from 
other verification and should not matter for the scope of this testing.

  Maciej