linux-kernel - [PATCH] PCI/bwctrl: Remove unused pcie_bwctrl_lbms

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-next>] [day] [month] [year] [list]

Message-ID: <3840f086-91cf-4fec-8004-b272a21d86cf@paulmck-laptop>
Date: Wed, 7 May 2025 15:04:57 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: ilpo.jarvinen@...ux.intel.com
Cc: bhelgaas@...gle.com, linux-pci@...r.kernel.org, kernel-team@...a.com,
	linux-kernel@...r.kernel.org, sfr@...b.auug.org.au,
	linux-next@...r.kernel.org
Subject: [PATCH] PCI/bwctrl: Remove unused pcie_bwctrl_lbms_rwsem

PCI/bwctrl: Remove unused pcie_bwctrl_lbms_rwsem

Builds with CONFIG_PREEMPT_RT=y get the following build error:

drivers/pci/pcie/bwctrl.c:56:22: error: ‘pcie_bwctrl_lbms_rwsem’ defined but not used [-Werror=unused-variable]

Therefore, remove this unused variable.  Perhaps this should be folded
into the commit shown below.

Fixes: 0238f352a63a ("PCI/bwctrl: Replace lbms_count with PCI_LINK_LBMS_SEEN flag")
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
Cc: "Ilpo Järvinen" <ilpo.jarvinen@...ux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: <linux-pci@...r.kernel.org>

diff --git a/drivers/pci/pcie/bwctrl.c b/drivers/pci/pcie/bwctrl.c
index fdafa20e4587d..841ab8725aff7 100644
--- a/drivers/pci/pcie/bwctrl.c
+++ b/drivers/pci/pcie/bwctrl.c
@@ -53,7 +53,6 @@ struct pcie_bwctrl_data {
  * (using just one rwsem triggers "possible recursive locking detected"
  * warning).
  */
-static DECLARE_RWSEM(pcie_bwctrl_lbms_rwsem);
 static DECLARE_RWSEM(pcie_bwctrl_setspeed_rwsem);
 
 static bool pcie_valid_speed(enum pci_bus_speed speed)