linux-kernel - [PATCH] PCI: Enable ASPM state clearing regardless of policy

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]

Date:	Thu, 10 Mar 2011 11:54:16 -0700
From:	Alex Williamson <alex.williamson@...hat.com>
To:	linux-pci@...r.kernel.org, jbarnes@...tuousgeek.org
Cc:	linux-kernel@...r.kernel.org, alex.williamson@...hat.com,
	mjg@...hat.com
Subject: [PATCH] PCI: Enable ASPM state clearing regardless of policy

Commit 2f671e2d allowed us to clear ASPM state when the FADT
tells us it isn't supported, but we don't put this into effect
if the aspm_policy is set to POLICY_POWERSAVE.  Enable the
state to be cleared regardless of policy.

Signed-off-by: Alex Williamson <alex.williamson@...hat.com>
---

 drivers/pci/pcie/aspm.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 3188cd9..eb8ac5c 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -607,7 +607,7 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
 	 * the BIOS's expectation, we'll do so once pci_enable_device() is
 	 * called.
 	 */
-	if (aspm_policy != POLICY_POWERSAVE) {
+	if (aspm_policy != POLICY_POWERSAVE || aspm_clear_state) {
 		pcie_config_aspm_path(link);
 		pcie_set_clkpm(link, policy_to_clkpm_state(link));
 	}

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/