From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 83F1540242B; Fri, 31 Jul 2026 14:49:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785509383; cv=none; b=n53NN17BKspPOZZgz9vOwGusNeHJbR0yb81URFk9BD3j0GIVDNTN9I1fXbot1Hj946KbQLBBi+C3DQOxG0mvLX6ZtW9LiXivhqByeEg/MhvkQyD2tRZo4K7eloKZklLI46DUWK8zyNu/n3o/Pldac+/iZ2DBSM2/ahyPBMnezPs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785509383; c=relaxed/simple; bh=JNMnH6IHZ1+BzkWo5cxCAMRy4qzh1BqUlJDzLZ/SnEg=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=kTqCKPmpxWtDlE/TNlXojWV6+Cikm3iRErjnyaNcz+0gSBWNYM+ro8Uc5G0DT7J02oEvCkZRD+IduWVy0HljOx72OHUhktMZltEtp1qAaaldd8chpVNiGgEWj+gIUs9CFR7iWsQOW1Td60AGinmJLj4mV/OlQUpkWD4iqJVvVoE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=N7virkJz; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="N7virkJz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 577221F000E9; Fri, 31 Jul 2026 14:49:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785509382; bh=InbkeZAjxWvu3ho1SpjIxrdr4cqmGolT6YTKoHhzXzo=; h=Date:From:To:Cc:Subject; b=N7virkJzfrAJ149OHoRyOs4GAs8OH4z0SALTQChY/VaNSljAfR5tN7uPiidWDPG5C HChqWrQIOy56Iui1rlMNeRLG+00zQrKzMVNNx4OCZG2vkvexZ3Q3ZkUOlebeDuwM8/ /nWtTCb2VvBUxtsg+jRmLlMcZccRJn7vQi8zCum0FHLmt955htftvsOnyXt3ePU+r+ fzmx1bPLef6JkJpZFVEHbdRUMs9DO1ONPBLhLatvAYZs5Ni8R3ecJda+7kMxCMvZif sLZuFS4YtsDab/RolvuzwVajS4yM8sPCCHy/bmjY2C6Bm35KJnKvsZl9Z+/VlxBHJL lISXrOXKaXttA== Date: Fri, 31 Jul 2026 15:49:38 +0100 From: Mark Brown To: "Paul E. McKenney" Cc: Linux Kernel Mailing List , Linux Next Mailing List Subject: linux-next: build failure after merge of the paulmck tree Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="MxKYV32C4D1bdBJb" Content-Disposition: inline --MxKYV32C4D1bdBJb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi all, After merging the paulmck tree, today's linux-next build (arm64 allnoconfig) failed like this: In file included from /tmp/next/build/arch/arm64/include/asm/rwonce.h:81, from /tmp/next/build/include/linux/compiler.h:369, from /tmp/next/build/include/linux/proc_fs.h:8, from /tmp/next/build/kernel/time/timer_list.c:8: /tmp/next/build/kernel/time/timer_list.c: In function 'print_base': /tmp/next/build/include/asm-generic/rwonce.h:44:71: error: lvalue required as unary '&' operand 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) | ^ /tmp/next/build/include/asm-generic/rwonce.h:50:9: note: in expansion of macro '__READ_ONCE' 50 | __READ_ONCE(x); \ | ^~~~~~~~~~~ /tmp/next/build/kernel/time/timer_list.c:102:52: note: in expansion of macro 'READ_ONCE' 102 | SEQ_printf(m, " .resolution: %u nsecs\n", READ_ONCE(hrtimer_resolution)); | ^~~~~~~~~ make[5]: *** [/tmp/next/build/scripts/Makefile.build:290: kernel/time/timer_list.o] Error 1 make[5]: *** Waiting for unfinished jobs.... In file included from /tmp/next/build/arch/arm64/include/asm/rwonce.h:81, from /tmp/next/build/include/linux/compiler.h:369, from /tmp/next/build/include/linux/build_bug.h:5, from /tmp/next/build/include/linux/bits.h:30, from /tmp/next/build/include/linux/bitops.h:6, from /tmp/next/build/arch/arm64/include/asm/cache.h:40, from /tmp/next/build/include/vdso/cache.h:5, from /tmp/next/build/include/linux/cache.h:6, from /tmp/next/build/include/linux/time.h:5, from /tmp/next/build/kernel/time/alarmtimer.c:15: /tmp/next/build/kernel/time/alarmtimer.c: In function 'alarm_clock_getres': /tmp/next/build/include/asm-generic/rwonce.h:44:71: error: lvalue required as unary '&' operand 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) | ^ /tmp/next/build/include/asm-generic/rwonce.h:50:9: note: in expansion of macro '__READ_ONCE' 50 | __READ_ONCE(x); \ | ^~~~~~~~~~~ /tmp/next/build/kernel/time/alarmtimer.c:606:23: note: in expansion of macro 'READ_ONCE' 606 | tp->tv_nsec = READ_ONCE(hrtimer_resolution); | ^~~~~~~~~ make[5]: *** [/tmp/next/build/scripts/Makefile.build:290: kernel/time/alarmtimer.o] Error 1 In file included from /tmp/next/build/arch/arm64/include/asm/rwonce.h:81, from /tmp/next/build/include/linux/compiler.h:369, from /tmp/next/build/include/linux/dev_printk.h:14, from /tmp/next/build/include/linux/device.h:15, from /tmp/next/build/include/linux/node.h:18, from /tmp/next/build/include/linux/cpu.h:17, from /tmp/next/build/kernel/time/hrtimer.c:25: /tmp/next/build/kernel/time/hrtimer.c: In function 'hrtimer_forward': /tmp/next/build/include/asm-generic/rwonce.h:44:71: error: lvalue required as unary '&' operand 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) | ^ /tmp/next/build/include/asm-generic/rwonce.h:50:9: note: in expansion of macro '__READ_ONCE' 50 | __READ_ONCE(x); \ | ^~~~~~~~~~~ /tmp/next/build/kernel/time/hrtimer.c:1100:15: note: in expansion of macro 'READ_ONCE' 1100 | res = READ_ONCE(hrtimer_resolution); | ^~~~~~~~~ make[5]: *** [/tmp/next/build/scripts/Makefile.build:290: kernel/time/hrtimer.o] Error 1 In file included from /tmp/next/build/arch/arm64/include/asm/rwonce.h:81, from /tmp/next/build/include/linux/compiler.h:369, from /tmp/next/build/include/linux/build_bug.h:5, from /tmp/next/build/include/linux/bits.h:30, from /tmp/next/build/include/linux/bitops.h:6, from /tmp/next/build/arch/arm64/include/asm/cache.h:40, from /tmp/next/build/include/vdso/cache.h:5, from /tmp/next/build/include/linux/cache.h:6, from /tmp/next/build/include/linux/time.h:5, from /tmp/next/build/include/linux/compat.h:10, from /tmp/next/build/kernel/time/posix-timers.c:12: /tmp/next/build/kernel/time/posix-timers.c: In function 'posix_get_hrtimer_res': /tmp/next/build/include/asm-generic/rwonce.h:44:71: error: lvalue required as unary '&' operand 44 | #define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x)) | ^ /tmp/next/build/include/asm-generic/rwonce.h:50:9: note: in expansion of macro '__READ_ONCE' 50 | __READ_ONCE(x); \ | ^~~~~~~~~~~ /tmp/next/build/kernel/time/posix-timers.c:275:23: note: in expansion of macro 'READ_ONCE' 275 | tp->tv_nsec = READ_ONCE(hrtimer_resolution); | ^~~~~~~~~ Caused by commit 84f2a4fba1353 (hrtimer: Apply {READ,WRITE}_ONCE() to hrtimer_resolution accesses) I used the tree from next-20260730 instead. --MxKYV32C4D1bdBJb Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmpstgIACgkQJNaLcl1U h9BaXAf7BxAt+FD8f5yAxcTVfVmq3mmD3uVOEoy8BeqaKwm9gUtDOW6kLOWEuPhM 3bNgJrBhByI4jW+Q99NBoPZ403ffBIyEIQ/f0pdcv9Z2mw0vF4IEyFNhJkwBJVFL o/+b76bB4p45/GIxeibfFBZM/likGu2xblpw6pE4be/ly02I9TyZUGi47IA/6OPe 0in9hFKZkbwM/2k96k9DbMaAIHAjaIZyvfDp4MdDZtlGmeQAVb2+RcjT5hJhI6tm cagujRgUVJoVaBGDCacCQyewqJLnAqr7VwG2W8PGgl0mSMCYdeIWcI018kTL2tTe tQkD/tU1h7xJdVV3cw78cbO8AdZJEw== =1gat -----END PGP SIGNATURE----- --MxKYV32C4D1bdBJb--