linux-kernel - [PATCH v3 1/6] genirq/msi: Add cleanup guard define for msi_lock_descs()/msi_unlock

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20241015-ep-msi-v3-1-cedc89a16c1a@nxp.com>
Date: Tue, 15 Oct 2024 18:07:14 -0400
From: Frank Li <Frank.Li@....com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Krzysztof Wilczyński <kw@...ux.com>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, Arnd Bergmann <arnd@...db.de>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org, 
 imx@...ts.linux.dev, Niklas Cassel <cassel@...nel.org>, dlemoal@...nel.org, 
 maz@...nel.org, tglx@...utronix.de, jdmason@...zu.us, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH v3 1/6] genirq/msi: Add cleanup guard define for
 msi_lock_descs()/msi_unlock_descs()

Add a cleanup DEFINE_GUARD macro for msi_lock_descs() and
msi_unlock_descs() to simplify lock and unlock operations in error path.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 include/linux/msi.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/msi.h b/include/linux/msi.h
index b10093c4d00ea..0b6cb7f303887 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -228,6 +228,8 @@ int msi_setup_device_data(struct device *dev);
 void msi_lock_descs(struct device *dev);
 void msi_unlock_descs(struct device *dev);
 
+DEFINE_GUARD(msi_descs, struct device *, msi_lock_descs(_T), msi_unlock_descs(_T))
+
 struct msi_desc *msi_domain_first_desc(struct device *dev, unsigned int domid,
 				       enum msi_desc_filter filter);
 

-- 
2.34.1