From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) (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 4076D1DB375; Wed, 22 Oct 2025 00:46:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=150.107.74.76 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761094015; cv=none; b=dMvYH3S76b0Qf5g4E5FuS2TBjXL25DmkDlpszmHfhz22bGvaJJFbO2eBixOxkEsL/3EkT97mu8iSRfR++oLc9gdtLcz/VERQAG4LFDRuEYwOgCrS56wHxsCjaEzd9BtCk9sfawud/hbEVQjzUyJZlweufP6jK7nUBMNdRhH2qYA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761094015; c=relaxed/simple; bh=9zedbGfbaoM5u4ZdfcyFq3k9aBVZMXoA2Mu2j1nOf64=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=j56Hswyfe7EUDKDgiQhKR/VAGA/EyBwZjlPGIlKkIZbkyH8AsqRg7YvDpmbve6CMzYR8ZPukJSOcqfCM8MLy+Uicr4mudI0YZvdcERjBH76TR/iy3Utjv15W6teqeDJiGeOteCi1VZj77nANLuMPAV/4LiHgrA6S1JXt0OvvDEk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canb.auug.org.au; spf=pass smtp.mailfrom=canb.auug.org.au; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b=Lo5c9baB; arc=none smtp.client-ip=150.107.74.76 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=canb.auug.org.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=canb.auug.org.au Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="Lo5c9baB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=202503; t=1761094008; bh=oLTfYh7UNOirViaAmqiLX2FqwS+c10rWJSMQtVrCjqY=; h=Date:From:To:Cc:Subject:From; b=Lo5c9baBl8tYEoT4Zy9Jpclp7rt3WhOC9yUm8jXnTauYIUHD1qEH1CjV7LL5IpX5d p4Aru4tMgLyMjWVuvuJhzbLgveSDMDhyXsoqFN9tXuVEofZIkD6gsBVZGnVR6PgXGy ISi1IZUeHg1rd6yoGtctaP2o5obvqBgDtbDo4aMSMTg6LmTJ162VZGkueyz54gMvjE Wf6lYe0CIU4xlYmrvD3EIkuHRs4iEQ3yrUadQHopH1Scl1fSr19GwsOkhZFrgJfLUv P5LP3nbKW9NDROKP19ixXKVlDw8O4Yo8vq7Te9CO7nvtxXt1GVjEiI5i+iu1/CliaI y2cziIQmurHlQ== 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 x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mail.ozlabs.org (Postfix) with ESMTPSA id 4crr8P5yZMz4wCK; Wed, 22 Oct 2025 11:46:45 +1100 (AEDT) Date: Wed, 22 Oct 2025 11:46:44 +1100 From: Stephen Rothwell To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra Cc: Boqun Feng , Daniel Almeida , Linux Kernel Mailing List , Linux Next Mailing List Subject: linux-next: build failure after merge of the tip tree Message-ID: <20251022114644.4437c2d9@canb.auug.org.au> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/J40QB5wj/ZWAu7Xduaj2lu5"; protocol="application/pgp-signature"; micalg=pgp-sha256 --Sig_/J40QB5wj/ZWAu7Xduaj2lu5 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: error[E0594]: cannot assign to data in dereference of `lock::Guard<'_, T, M= utexBackend>` --> rust/kernel/debugfs/traits.rs:64:9 | 64 | *self.lock() =3D val; | ^^^^^^^^^^^^ cannot assign | =3D help: trait `DerefMut` is required to modify through a dereference, = but it is not implemented for `lock::Guard<'_, T, MutexBackend>` error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0594`. Caused by commit da123f0ee40f ("rust: lock: guard: Add T: Unpin bound to DerefMut") I have used the tip tree from next-20251021 for today. --=20 Cheers, Stephen Rothwell --Sig_/J40QB5wj/ZWAu7Xduaj2lu5 Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmj4KXQACgkQAVBC80lX 0GwJ8Af+Nfn7uI+nQ/YbG9Qx1tduynS+qLzBSTX6ZTjNo734Lp747Iw2lQy0AdGx quEV5XCQxaCAmxBjeHHGnz2bZoKiFDC3IzzAL4KA4Oz7zpK8fNekypuU6pg7OqJQ scMTPD4Y3pObgtL9W41IpawQtfnpLPY2pzN6UhTsQ4IogXAkpmP8ES0HozDQX+/X hBNqAod6q/RvXjF2OES2uHivpwE5tg1aGFPUFl1zRflYJvrkznYeLfSv7o4MXKw1 hbN4TALFvRo7dLiHzKVtzC9nd6rnyUq2MGDRgYqo20QTDepC82Ut0pktrqA0+ZvF tAaJM/lgVf3CAy54xngOv1QvFbIn5A== =nRh+ -----END PGP SIGNATURE----- --Sig_/J40QB5wj/ZWAu7Xduaj2lu5--