From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
alan@lxorguk.ukuu.org.uk, Jan Beulich <jbeulich@suse.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: [ 16/37] x86: hpet: Fix masking of MSI interrupts
Date: Fri, 14 Dec 2012 15:00:53 -0800 [thread overview]
Message-ID: <20121214222256.300455321@linuxfoundation.org> (raw)
In-Reply-To: <20121214222252.781413287@linuxfoundation.org>
3.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jan Beulich <JBeulich@suse.com>
commit 6acf5a8c931da9d26c8dd77d784daaf07fa2bff0 upstream.
HPET_TN_FSB is not a proper mask bit; it merely toggles between MSI and
legacy interrupt delivery. The proper mask bit is HPET_TN_ENABLE, so
use both bits when (un)masking the interrupt.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/5093E09002000078000A60E6@nat28.tlf.novell.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kernel/hpet.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -434,7 +434,7 @@ void hpet_msi_unmask(struct irq_data *da
/* unmask it */
cfg = hpet_readl(HPET_Tn_CFG(hdev->num));
- cfg |= HPET_TN_FSB;
+ cfg |= HPET_TN_ENABLE | HPET_TN_FSB;
hpet_writel(cfg, HPET_Tn_CFG(hdev->num));
}
@@ -445,7 +445,7 @@ void hpet_msi_mask(struct irq_data *data
/* mask it */
cfg = hpet_readl(HPET_Tn_CFG(hdev->num));
- cfg &= ~HPET_TN_FSB;
+ cfg &= ~(HPET_TN_ENABLE | HPET_TN_FSB);
hpet_writel(cfg, HPET_Tn_CFG(hdev->num));
}
next prev parent reply other threads:[~2012-12-14 23:03 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-14 23:00 [ 00/37] 3.6.11-stable review Greg Kroah-Hartman
2012-12-14 23:00 ` [ 01/37] tmpfs: fix shared mempolicy leak Greg Kroah-Hartman
2012-12-14 23:00 ` [ 02/37] Revert misapplied "mmc: sh-mmcif: avoid oops on spurious interrupts" Greg Kroah-Hartman
2012-12-14 23:00 ` [ 03/37] mmc: sh-mmcif: avoid oops on spurious interrupts (second try) Greg Kroah-Hartman
2012-12-14 23:00 ` [ 04/37] ARM: 7566/1: vfp: fix save and restore when running on pre-VFPv3 and CONFIG_VFPv3 set Greg Kroah-Hartman
2012-12-14 23:00 ` [ 05/37] ASoC: dmaengine: Correct Makefile when sound is built as module Greg Kroah-Hartman
2012-12-14 23:00 ` [ 06/37] Staging: ipack/bridges/tpci200: avoid kernel bug when uninstalling a device Greg Kroah-Hartman
2012-12-14 23:00 ` [ 07/37] Input: matrix-keymap - provide proper module license Greg Kroah-Hartman
2012-12-14 23:00 ` [ 08/37] i82975x_edac: Fix dimm label initialization Greg Kroah-Hartman
2012-12-14 23:00 ` [ 09/37] edac: Fix the dimm filling for csrows-based layouts Greg Kroah-Hartman
2012-12-14 23:00 ` [ 10/37] workqueue: convert BUG_ON()s in __queue_delayed_work() to WARN_ON_ONCE()s Greg Kroah-Hartman
2012-12-14 23:00 ` [ 11/37] drm/i915: do not ignore eDP bpc settings from vbt Greg Kroah-Hartman
2012-12-14 23:00 ` [ 12/37] drm/i915: do not default to 18 bpp for eDP if missing from VBT Greg Kroah-Hartman
2012-12-14 23:00 ` [ 13/37] mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls Greg Kroah-Hartman
2012-12-14 23:00 ` [ 14/37] x86,AMD: Power driver support for AMDs family 16h processors Greg Kroah-Hartman
2012-12-14 23:00 ` [ 15/37] floppy: destroy floppy workqueue before cleaning up the queue Greg Kroah-Hartman
2012-12-14 23:00 ` Greg Kroah-Hartman [this message]
2012-12-14 23:00 ` [ 17/37] USB: add new zte 3g-dongles pid to option.c Greg Kroah-Hartman
2012-12-14 23:00 ` [ 18/37] USB: option: blacklist network interface on Huawei E173 Greg Kroah-Hartman
2012-12-14 23:00 ` [ 19/37] USB: ftdi_sio: Add support for Newport AGILIS motor drivers Greg Kroah-Hartman
2012-12-14 23:00 ` [ 20/37] usb: ftdi_sio: fixup BeagleBone A5+ quirk Greg Kroah-Hartman
2012-12-14 23:00 ` [ 21/37] USB: cp210x: add Virtenio Preon32 device id Greg Kroah-Hartman
2012-12-14 23:00 ` [ 22/37] USB: mark uas driver as BROKEN Greg Kroah-Hartman
2012-12-14 23:01 ` [ 23/37] ACPI / battery: Correct battery capacity values on Thinkpads Greg Kroah-Hartman
2012-12-14 23:01 ` [ 24/37] ACPI / PM: Add Sony Vaio VPCEB1S1E to nonvs blacklist Greg Kroah-Hartman
2012-12-14 23:01 ` [ 25/37] ACPI / PNP: Do not crash due to stale pointer use during system resume Greg Kroah-Hartman
2012-12-14 23:01 ` [ 26/37] ACPI / video: ignore BIOS initial backlight value for HP Folio 13-2000 Greg Kroah-Hartman
2012-12-14 23:01 ` [ 27/37] ACPI / video: Add "Asus UL30VT" to ACPI video detect blacklist Greg Kroah-Hartman
2012-12-14 23:01 ` [ 28/37] USB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue Greg Kroah-Hartman
2012-12-14 23:01 ` [ 29/37] xhci: Extend Fresco Logic MSI quirk Greg Kroah-Hartman
2012-12-14 23:01 ` [ 30/37] ftrace: Clear bits properly in reset_iter_read() Greg Kroah-Hartman
2012-12-14 23:01 ` [ 31/37] ring-buffer: Fix NULL pointer if rb_set_head_page() fails Greg Kroah-Hartman
2012-12-14 23:01 ` [ 32/37] ring-buffer: Fix race between integrity check and readers Greg Kroah-Hartman
2012-12-14 23:01 ` [ 33/37] cdc-acm: implement TIOCSSERIAL to avoid blocking close(2) Greg Kroah-Hartman
2012-12-14 23:01 ` [ 34/37] perf test: fix a build error on builtin-test Greg Kroah-Hartman
2012-12-14 23:01 ` [ 35/37] USB: EHCI: bugfix: urb->hcpriv should not be NULL Greg Kroah-Hartman
2012-12-14 23:01 ` [ 36/37] rcu: Fix batch-limit size problem Greg Kroah-Hartman
2012-12-14 23:01 ` [ 37/37] PCI/PM: Fix deadlock when unbinding device if parent in D3cold Greg Kroah-Hartman
2012-12-15 14:24 ` [ 00/37] 3.6.11-stable review Shuah Khan
2012-12-15 20:47 ` Shuah Khan
2012-12-15 14:27 ` Satoru Takeuchi
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