linux-kernel - Re: [syzbot] [mm?] WARNING in __folio_rmap_sanity

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Message-ID: <676fb0b6.050a0220.226966.00aa.GAE@google.com>
Date: Sat, 28 Dec 2024 00:03:02 -0800
From: syzbot <syzbot+c0673e1f1f054fac28c2@...kaller.appspotmail.com>
To: hdanton@...a.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [mm?] WARNING in __folio_rmap_sanity_checks (2)

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

./include/linux/rmap.h:220:16: error: initializing 'struct page *' with an expression of type 'typeof (page)' (aka 'const struct page *') discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
./include/linux/rmap.h:223:5: error: assigning to 'struct page *' from 'const struct page *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]


Tested on:

commit:         8155b4ef Add linux-next specific files for 20241220
git tree:       linux-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=9c90bb7161a56c88
dashboard link: https://syzkaller.appspot.com/bug?extid=c0673e1f1f054fac28c2
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1558050f980000