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 468A54F4035; Thu, 17 Sep 2026 17:03:14 +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=1789664595; cv=none; b=NV/Ugle/0WednGBWa3E55VwMT22KTuRpDrxfL39zbLLBuz6kPylkf1V/YNLCveN0rPZQ9lSPFFZfhb0CVphllZDeKg1M2CZCpDab6lLU+Pao5xAPpJwhRQfmQuq2fHqRb3CadpPwvRNWRo1c5X+31yZ+XYEFoi8AGofP3t36Pvg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789664595; c=relaxed/simple; bh=xlX9HJzsFiIFW5yRNJCM7NyTRmUOA/9FZ+POTKLx/qo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Wmwn+cAeuCPgnufAJ7wx+VGTHChrWQ03eejHLivC/UKVNACG3wBFhtC0EKzZy4vASQu7gjqvhdx9s67f4L66yXkL3ozp6y9STV9ZYVpKO1MivBzoIABhGEe72+UoXl7FEVil6wuuDhpNKr2vXhzoY0AXI8gQCHbui8R/HV1MB+E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=CpA+AhE8; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="CpA+AhE8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9572A1F000FF; Thu, 17 Sep 2026 17:03:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789664594; bh=E5+9hNc3SI930eD+xHjMklAZe6nixy4dFsEfj1qGurk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=CpA+AhE8F3tceYJ0Fdo0f9/dCMV11YMI+6nE1G9hTFhgX+xSa4T84rtbLrlnzurv5 GGdp15g9Nm7cK3dVNrq20Bw3OypR99kBxZE4z2X2e4m9nkC299AfjvMpAvmzZ4qVmu Myyw2vS319AXsgpx9moexUZ/dhOjFHDwSo/JmbVQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Arnd Bergmann , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 6.18 0423/1250] scsi: bfa: Reduce kernel stack usage in bfa_fcs_lport_fdmi_build_portattr_block() Date: Thu, 17 Sep 2026 16:03:38 +0100 Message-ID: <20260917151603.482688012@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151551.901433442@linuxfoundation.org> References: <20260917151551.901433442@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Arnd Bergmann [ Upstream commit 57a6ed0b41677ccc5e28cc0976e495c1dfa33747 ] bfa_fcs_fdmi_get_portattr() gets inlined into multiple places and has two fairly large variables on the stack, to the point of causing a warning in some randconfig builds: drivers/scsi/bfa/bfa_fcs_lport.c:2198:1: error: stack frame size (1560) exceeds limit (1280) in 'bfa_fcs_lport_fdmi_build_portattr_block' [-Werror,-Wframe-larger-than] 2198 | bfa_fcs_lport_fdmi_build_portattr_block(struct bfa_fcs_lport_fdmi_s *fdmi, | ^ drivers/scsi/bfa/bfa_fcs_lport.c:1856:1: error: stack frame size (1600) exceeds limit (1280) in 'bfa_fcs_lport_fdmi_build_rhba_pyld' [-Werror,-Wframe-larger-than] 1856 | bfa_fcs_lport_fdmi_build_rhba_pyld(struct bfa_fcs_lport_fdmi_s *fdmi, u8 *pyld) | ^ Mark the inner function as noinline_for_stack to keep it separate from the other variables and prevent multiple copies of the same variable to get inlined here. Signed-off-by: Arnd Bergmann Link: https://patch.msgid.link/20260611125601.3385418-1-arnd@kernel.org Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/bfa/bfa_fcs_lport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c index 9a85f417018f9..cabe408214b3f 100644 --- a/drivers/scsi/bfa/bfa_fcs_lport.c +++ b/drivers/scsi/bfa/bfa_fcs_lport.c @@ -2627,7 +2627,7 @@ bfa_fcs_fdmi_get_hbaattr(struct bfa_fcs_lport_fdmi_s *fdmi, } -static void +static noinline_for_stack void bfa_fcs_fdmi_get_portattr(struct bfa_fcs_lport_fdmi_s *fdmi, struct bfa_fcs_fdmi_port_attr_s *port_attr) { -- 2.53.0