From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF7F5C4708D for ; Mon, 5 Dec 2022 01:15:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231236AbiLEBPv (ORCPT ); Sun, 4 Dec 2022 20:15:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230448AbiLEBPs (ORCPT ); Sun, 4 Dec 2022 20:15:48 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 363E99FDE; Sun, 4 Dec 2022 17:15:46 -0800 (PST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4NQQbL1dL5z4xN8; Mon, 5 Dec 2022 12:15:41 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1670202944; bh=va+ER1GinBW/ZbxfHD/We3OdldRGmNelHCbNhtA+I08=; h=Date:From:To:Cc:Subject:From; b=LUiOAsmxErriObZ4GNeT4CErqp+Xlt6RFwjfddFzTwvL3jPnkDLHQJ6Fdd7wUXto3 iOPIhzSXzyQko5Ec6CH9xdq6WGmTOQTZlZn/RDWUqo7d1pqvFJGme1OBjNLT1innkY 8Th63qUjUT12CVTvt3nX0qD6RmLDceM69/0eb4YnXVBZ56lv02Max6IjQxuRf2x0uX bFSsmsunqM5NhrzY8x6WIK1UyBNXlfvVDZeRW3un4JzJPrfLUmnGkJuBQ9NmBNEzxy TJ/fUip4tC0hRFiLkzXEF/wWHoM2s3EhT5XFy+daZjqByZgxsaSnqmj9Y8g8lTZhXZ b9r76AcovcZWA== Date: Mon, 5 Dec 2022 12:15:40 +1100 From: Stephen Rothwell To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra Cc: Linus Torvalds , Dave Hansen , "Kirill A. Shutemov" , Linux Kernel Mailing List , Linux Next Mailing List Subject: linux-next: build failure after merge of the tip tree Message-ID: <20221205121540.25a993c2@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/ta_TCegbeHFhMSoB1X7m4ax"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/ta_TCegbeHFhMSoB1X7m4ax Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the tip tree, today's linux-next build (x86_64 allmodconfig) failed like this: In file included from include/linux/uaccess.h:11, from include/linux/sched/task.h:11, from include/linux/sched/signal.h:9, from include/linux/rcuwait.h:6, from include/linux/percpu-rwsem.h:7, from include/linux/fs.h:33, from include/linux/huge_mm.h:8, from include/linux/mm.h:726, from drivers/media/common/videobuf2/frame_vector.c:5: drivers/media/common/videobuf2/frame_vector.c: In function 'get_vaddr_frame= s': drivers/media/common/videobuf2/frame_vector.c:46:31: error: 'mm' undeclared= (first use in this function); did you mean 'tm'? 46 | start =3D untagged_addr(mm, start); | ^~ arch/x86/include/asm/uaccess.h:38:28: note: in definition of macro 'untagge= d_addr' 38 | __addr &=3D (mm)->context.untag_mask | sign; = \ | ^~ drivers/media/common/videobuf2/frame_vector.c:46:31: note: each undeclared = identifier is reported only once for each function it appears in 46 | start =3D untagged_addr(mm, start); | ^~ arch/x86/include/asm/uaccess.h:38:28: note: in definition of macro 'untagge= d_addr' 38 | __addr &=3D (mm)->context.untag_mask | sign; = \ | ^~ Caused by commit 062c9b2996e9 ("mm: Pass down mm_struct to untagged_addr()") interacting with commit 6647e76ab623 ("v4l2: don't fall back to follow_pfn() if pin_user_pages_fa= st() fails") from Linus' tree. I have applied the following merge fix patch for today. From: Stephen Rothwell Date: Mon, 5 Dec 2022 11:55:52 +1100 Subject: [PATCH] fix up for "mm: Pass down mm_struct to untagged_addr()" interacting with "v4l2: don't fall back to follow_pfn() if pin_user_pages_f= ast() fails" Signed-off-by: Stephen Rothwell --- drivers/media/common/videobuf2/frame_vector.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/common/videobuf2/frame_vector.c b/drivers/media/= common/videobuf2/frame_vector.c index 18124929b18d..13455a76a37e 100644 --- a/drivers/media/common/videobuf2/frame_vector.c +++ b/drivers/media/common/videobuf2/frame_vector.c @@ -43,7 +43,7 @@ int get_vaddr_frames(unsigned long start, unsigned int nr= _frames, if (WARN_ON_ONCE(nr_frames > vec->nr_allocated)) nr_frames =3D vec->nr_allocated; =20 - start =3D untagged_addr(mm, start); + start =3D untagged_addr(current->mm, start); =20 ret =3D pin_user_pages_fast(start, nr_frames, FOLL_FORCE | FOLL_WRITE | FOLL_LONGTERM, --=20 2.35.1 --=20 Cheers, Stephen Rothwell --Sig_/ta_TCegbeHFhMSoB1X7m4ax Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmONRjwACgkQAVBC80lX 0GyglQf/XuQWW31A/19o3r+K3CnPRal4dtU0hcX4mqfxfQUdwUFZtUOqhkAXUK5C ElbQ2RReZCtTZbYVK/Q4TMSN1IfPYQZ1S01qG8mbr5SwtMsRGst5jyIL5+DxIb4C K9MOqXug2hz10VyYCkLRWj9GBBGqGyyK4sweo42i8Cfuv1YfJ8OcyqdRhDnwVyK0 lYfGHtmLMYP9xWbMwkDLBqwp99P/vtaGTF4Jvx+ilPkLtOiDVhCMA6F9nAH+7HS0 13oWdWzdjRj6q/o0zxGlwzVEuZzwtFnaMd/9ZOJh+30WnZ/2rIIrpc8mz1x7jshR kHB0MwWajKVrZLvqMod33Z6oWygEiw== =7UPh -----END PGP SIGNATURE----- --Sig_/ta_TCegbeHFhMSoB1X7m4ax--