| Message ID | 147747400010364@kroah.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
--- a/drivers/acpi/nfit.c +++ b/drivers/acpi/nfit.c @@ -1806,6 +1806,9 @@ static void acpi_nfit_notify(struct acpi dev_dbg(dev, "%s: event: %d\n", __func__, event); + if (event != NFIT_NOTIFY_UPDATE) + return; + device_lock(dev); if (!dev->driver) { /* dev->driver may be null if we're being removed */ --- a/drivers/acpi/nfit.h +++ b/drivers/acpi/nfit.h @@ -45,6 +45,10 @@ enum { ND_BLK_DCR_LATCH = 2, }; +enum nfit_root_notifiers { + NFIT_NOTIFY_UPDATE = 0x80, +}; + struct nfit_spa { struct acpi_nfit_system_address *spa; struct list_head list;
This is a note to let you know that I've just added the patch titled acpi, nfit: check for the correct event code in notifications to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: acpi-nfit-check-for-the-correct-event-code-in-notifications.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@vger.kernel.org> know about it. From c09f12186d6b03b798832d95289af76495990192 Mon Sep 17 00:00:00 2001 From: Vishal Verma <vishal.l.verma@intel.com> Date: Fri, 19 Aug 2016 14:40:58 -0600 Subject: acpi, nfit: check for the correct event code in notifications From: Vishal Verma <vishal.l.verma@intel.com> commit c09f12186d6b03b798832d95289af76495990192 upstream. Commit 209851649dc4 "acpi: nfit: Add support for hot-add" added support for _FIT notifications, but it neglected to verify the notification event code matches the one in the ACPI spec for "NFIT Update". Currently there is only one code in the spec, but once additional codes are added, older kernels (without this fix) will misbehave by assuming all event notifications are for an NFIT Update. Fixes: 209851649dc4 ("acpi: nfit: Add support for hot-add") Cc: <stable@vger.kernel.org> Cc: <linux-acpi@vger.kernel.org> Cc: Dan Williams <dan.j.williams@intel.com> Reported-by: Linda Knippers <linda.knippers@hpe.com> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/acpi/nfit.c | 3 +++ drivers/acpi/nfit.h | 4 ++++ 2 files changed, 7 insertions(+) Patches currently in stable-queue which might be from vishal.l.verma@intel.com are queue-4.4/acpi-nfit-check-for-the-correct-event-code-in-notifications.patch -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html