From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 08E9013B58A; Sun, 1 Mar 2026 01:30:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772328628; cv=none; b=U1he23emb+Uuk4exVRqcKjYaxkTL+7szGPsmdke+JMoJVza6LrmYSLcUkNencUwS+udrwaBSvaspws1nLvE7o99WEZW4IMC6z0Lznt2SalDArVtQvHGCHBE+mSvIFfFE+90gp8gdiL2p8JGCUdeE42el28BsRNT6RtUanYngemY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772328628; c=relaxed/simple; bh=4uCD1gBCacpXKOjSEkV0tlz5BgkCNu5v6kJsKstjeVs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XP1JQfieArXKqZ/zjLchYOX7Y3psNeWDLTZLidarXWKAEl0MutFw5gF1Jb1ymQsQkvheSwW4RVc1RjDGYYlcRN2O/Ouyu1UYMjwL39i5gZQOEF5JiIBWaDQr0V9RsaQibinmgABXuz/g3pG+kuc3VjbMmyVS0EvdvQi4/eDS9g4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WoMdTolM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WoMdTolM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 57025C19421; Sun, 1 Mar 2026 01:30:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772328627; bh=4uCD1gBCacpXKOjSEkV0tlz5BgkCNu5v6kJsKstjeVs=; h=From:To:Cc:Subject:Date:From; b=WoMdTolMmxHwobkYpSB+y32MSPNXKcSQKNTqLH54WjYyubORXYlM1jkDkPKpVEQQy OQ/l3rkW2bD7qtbHNH/iKHQ5c/IEojv80/A9Qd5QFbfeZY0ro9XEXCq0UiNGADrZMJ u8F0h2+Xm0Jy03VjtwFZn8LD7zSUX3y6fDzEYFHA8PH+lyivTNwemw62iEaXaavuro ws9qX7kPrEG/lbad2OQWDaeBvXs7w0h/UCQpufajWy8jyaidDzXXvItNFcjx85MJuf wWlxbaQ590wtpKlcm1khEdwePT3zMWM6Qt25ZjqQC8LHfDLyY7TG+4+UHOSK3Flkl4 gYzD8VQ86BvbQ== From: Sasha Levin To: stable@vger.kernel.org, cascardo@igalia.com Cc: Xu Yilun , Xu Yilun , linux-fpga@vger.kernel.org Subject: FAILED: Patch "fpga: dfl: use subsys_initcall to allow built-in drivers to be added" failed to apply to 6.6-stable tree Date: Sat, 28 Feb 2026 20:30:25 -0500 Message-ID: <20260301013026.1688600-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-fpga@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 267f53140c9d0bf270bbe0148082e9b8e5011273 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Mon, 15 Dec 2025 16:05:50 -0300 Subject: [PATCH] fpga: dfl: use subsys_initcall to allow built-in drivers to be added The dfl code adds a bus. If it is built-in and there is a built-in driver as well, the dfl module_init may be called after the driver module_init, leading to a failure to register the driver as the bus has not been added yet. Use subsys_initcall, which guarantees it will be called before the drivers init code. Without the fix, we see failures like this: [ 0.479475] Driver 'intel-m10-bmc' was unable to register with bus_type 'dfl' because the bus was not initialized. Cc: stable@vger.kernel.org Fixes: 9ba3a0aa09fe ("fpga: dfl: create a dfl bus type to support DFL devices") Signed-off-by: Thadeu Lima de Souza Cascardo Link: https://lore.kernel.org/r/20251215-dfl_subsys-v1-1-21807bad6b10@igalia.com Reviewed-by: Xu Yilun Signed-off-by: Xu Yilun --- drivers/fpga/dfl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index 7022657243c0a..449c3a082e232 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -2018,7 +2018,7 @@ static void __exit dfl_fpga_exit(void) bus_unregister(&dfl_bus_type); } -module_init(dfl_fpga_init); +subsys_initcall(dfl_fpga_init); module_exit(dfl_fpga_exit); MODULE_DESCRIPTION("FPGA Device Feature List (DFL) Support"); -- 2.51.0