summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2013-09-16Bluetooth: Fix security level for peripheral roleAndre Guedes
While playing the peripheral role, the host gets a LE Long Term Key Request Event from the controller when a connection is established with a bonded device. The host then informs the LTK which should be used for the connection. Once the link is encrypted, the host gets an Encryption Change Event. Therefore we should set conn->pending_sec_level instead of conn-> sec_level in hci_le_ltk_request_evt. This way, conn->sec_level is properly updated in hci_encrypt_change_evt. Moreover, since we have a LTK associated to the device, we have at least BT_SECURITY_MEDIUM security level. Cc: Stable <stable@vger.kernel.org> Signed-off-by: Andre Guedes <andre.guedes@openbossa.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Add a new PID/VID 0cf3/e005 for AR3012.Peng Chen
usb device info: T: Bus=06 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 15 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0cf3 ProdID=e005 Rev= 0.02 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms Cc: Stable <stable@vger.kernel.org> Signed-off-by: Peng Chen <pengchen@qca.qualcomm.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Only schedule raw queue when user channel is activeMarcel Holtmann
When the user channel is set and an user application has full control over the device, do not bother trying to schedule any queues except the raw queue. This is an optimization since with user channel, only the raw queue is in use. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Use GFP_KERNEL when cloning SKB in a workqueueMarcel Holtmann
There is no need to use GFP_ATOMIC with skb_clone() when the code is executed in a workqueue. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Disable upper layer connections when user channel is activeMarcel Holtmann
When the device has the user channel flag set, it means it is driven by an user application. In that case do not allow any connections from L2CAP or SCO sockets. This is the same situation as when the device has the raw flag set and it will then return EHOSTUNREACH. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Johan Hedberg <johan.hedberg@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Add support creating virtual AMP controllersMarcel Holtmann
So far the only option to create a virtual AMP controller was by setting a module parameter for the hci_vhci driver. This patch adds the functionality to define inline to create either a BR/EDR or an AMP controller. In addition the client will be informed which HCI controller index it got assigned. That is especially useful for automated end-to-end testing. To keep backwards compatibility with existing userspace, the command for creating a controller type needs to be send right after opening the device node. If the command is not send, it defaults back to automatically creating a BR/EDR controller. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Use devname:vhci module alias for virtual HCI driverMarcel Holtmann
To allow creating /dev/vhci device node, add the proper module alias for this driver. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Introduce new HCI socket channel for user operationMarcel Holtmann
This patch introcuces a new HCI socket channel that allows user applications to take control over a specific HCI device. The application gains exclusive access to this device and forces the kernel to stay away and not manage it. In case of the management interface it will actually hide the device. Such operation is useful for security testing tools that need to operate underneath the Bluetooth stack and need full control over a device. The advantage here is that the kernel still provides the service of hardware abstraction and HCI level access. The use of Bluetooth drivers for hardware access also means that sniffing tools like btmon or hcidump are still working and the whole set of transaction can be traced with existing tools. With the new channel it is possible to send HCI commands, ACL and SCO data packets and receive HCI events, ACL and SCO packets from the device. The format follows the well established H:4 protocol. The new HCI user channel can only be established when a device has been through its setup routine and is currently powered down. This is enforced to not cause any problems with current operations. In addition only one user channel per HCI device is allowed. It is exclusive access for one user application. Access to this channel is limited to process with CAP_NET_RAW capability. Using this new facility does not require any external library or special ioctl or socket filters. Just create the socket and bind it. After that the file descriptor is ready to speak H:4 protocol. struct sockaddr_hci addr; int fd; fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); memset(&addr, 0, sizeof(addr)); addr.hci_family = AF_BLUETOOTH; addr.hci_dev = 0; addr.hci_channel = HCI_CHANNEL_USER; bind(fd, (struct sockaddr *) &addr, sizeof(addr)); The example shows on how to create a user channel for hci0 device. Error handling has been left out of the example. However with the limitations mentioned above it is advised to handle errors. Binding of the user cahnnel socket can fail for various reasons. Specifically if the device is currently activated by BlueZ or if the access permissions are not present. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Introduce user channel flag for HCI devicesMarcel Holtmann
This patch introduces a new user channel flag that allows to give full control of a HCI device to a user application. The kernel will stay away from the device and does not allow any further modifications of the device states. The existing raw flag is not used since it has a bit of unclear meaning due to its legacy. Using a new flag makes the code clearer. A device with the user channel flag set can still be enumerate using the legacy API, but it does not longer enumerate using the new management interface used by BlueZ 5 and beyond. This is intentional to not confuse users of modern systems. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Restrict ioctls to HCI raw channel socketsMarcel Holtmann
The various legacy ioctls used with HCI sockets are limited to raw channel only. They are not used on the other channels and also have no meaning there. So return an error if tried to use them. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Fix error handling for HCI socket optionsMarcel Holtmann
The HCI sockets for monitor and control do not support any HCI specific socket options and if tried, an error will be returned. However the error used is EINVAL and that is not really descriptive. To make it clear that these sockets are not handling HCI socket options, return EBADFD instead. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Report error for HCI reset ioctl when device is downMarcel Holtmann
Even if this is legacy API, there is no reason to not report a proper error when trying to reset a HCI device that is down. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Fix handling of getsockname() for HCI socketsMarcel Holtmann
The hci_dev check is not protected and so move it into the socket lock. In addition return the HCI channel identifier instead of always 0 channel. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Fix handling of getpeername() for HCI socketsMarcel Holtmann
The HCI sockets do not have a peer associated with it and so make sure that getpeername() returns EOPNOTSUPP since this operation is actually not supported on HCI sockets. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16Bluetooth: Refactor raw socket filter into more readable codeMarcel Holtmann
The handling of the raw socket filter is rather obscure code and it gets in the way of future extensions. Instead of inline filtering in the raw socket packet routine, refactor it into its own function. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2013-09-16ath10k: remove wmi event worker threadMichal Kazior
It's not really necessary to have this processed in a worker. There are no sleepable calls (and actually shouldn't be). Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-16ath10k: remove wmi pending count limitMichal Kazior
It is no longer used nor necessary since WMI commands can block. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-16ath10k: improve beacon submission latencyMichal Kazior
The patch prevents beacon misses in some case of heavy load on a system. If a beacon can't be transmitted directly from an SWBA event it will be left in arvif->beacon and transmission will be retried once TX credits become available. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-16ath10k: simplify HTC command submittingMichal Kazior
The patch removes HTC endpoint tx workers in favour of direct command submission. This makes a lot more sense for data path. mac80211 queues are effectively stopped/woken up in a more timely fashion preventing build up of frames. It's possible to push more traffic than the device/system is able to handle and have no hiccups or performance degradation with UDP traffic. WMI commands will now report errors properly and possibly block as they actively can wait for tx credits to become available. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-16ath10k: make WMI commands block by designMichal Kazior
This will be necessary for further changes in command submission scheme. Once HTC is cleaned up WMI commands will finally block. This requires for SWBA to be processed in a non-atomic context for now. Once other necessary changes are in this will be reverted. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-16ath10k: add HTC TX credits replenishing notificationMichal Kazior
This will allow higher layers to anticipate and act upon TX credits renewal. This will be important for some future rework of WMI command submission. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-16ath10k: simplify HTC credits calculationMichal Kazior
Credit calculation was overly complex unnecessarily. Now skb dequeing is more unified. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-16pstore: Remove the messages related to compression failureAruna Balakrishnaiah
Remove the messages indicating compression failure as it will add to the space during panic path. Reported-by: Seiji Aguchi <seiji.aguchi@hds.com> Tested-by: Seiji Aguchi <seiji.aguchi@hds.com> Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2013-09-16pstore: Use zlib_inflateInit2 instead of zlib_inflateInitAruna Balakrishnaiah
Since zlib_deflateInit2() is used for specifying window bit during compression, zlib_inflateInit2() is appropriate for decompression. Reported-by: Seiji Aguchi <seiji.aguchi@hds.com> Tested-by: Seiji Aguchi <seiji.aguchi@hds.com> Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2013-09-16pstore: Adjust buffer size for compression for smaller registered buffersAruna Balakrishnaiah
When backends (ex: efivars) have smaller registered buffers, the big_oops_buf is too big for them as number of repeated occurences in the text captured will be less. What happens is that pstore takes too big a bite from the dmesg log and then finds it cannot compress it enough to meet the backend block size. Patch takes care of adjusting the buffer size based on the registered buffer size. cmpr values have been arrived after doing experiments with plain text for buffers of size 1k - 4k (Smaller the buffer size repeated occurence will be less) and with sample crash log for buffers ranging from 4k - 10k. Reported-by: Seiji Aguchi <seiji.aguchi@hds.com> Tested-by: Seiji Aguchi <seiji.aguchi@hds.com> Signed-off-by: Aruna Balakrishnaiah <aruna@linux.vnet.ibm.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2013-09-16sched: Fix comment for sched_info_departMichael S. Tsirkin
sched_info_depart seems to be only called from sched_info_switch(), so only on involuntary task switch. Fix the comment to match. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Link: http://lkml.kernel.org/r/20130916083036.GA1113@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-09-15cxgb4: remove workqueue when driver registration failsWei Yang
When driver registration fails, we need to clean up the resources allocated before. cxgb4 missed to destroy the workqueue allocated at the very beginning. This patch destroies the workqueue when registration fails. Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15isdn: hfcpci_softirq: get func return to suppress compiler warningAntonio Alecrim Jr
Signed-off-by: Antonio Alecrim Jr <antonio.alecrim@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15bonding: Make alb learning packet interval configurableNeil Horman
running bonding in ALB mode requires that learning packets be sent periodically, so that the switch knows where to send responding traffic. However, depending on switch configuration, there may not be any need to send traffic at the default rate of 3 packets per second, which represents little more than wasted data. Allow the ALB learning packet interval to be made configurable via sysfs Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Acked-by: Veaceslav Falico <vfalico@redhat.com> CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15atm: nicstar: fix regression made by previous patchAndy Shevchenko
The commit 8390f814 "atm: nicstar: re-use native mac_pton() helper" did a usefull thing. However, mac_pton() returns 1 in the case of the successfully parsed input. This patch fixes a typo. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15vxlan: Fix sparse warningsJoseph Gasparakis
This patch fixes sparse warnings when incorrectly handling the port number and using int instead of unsigned int iterating through &vn->sock_list[]. Keeping the port as __be16 also makes things clearer wrt endianess. Also, it was pointed out that vxlan_get_rx_port() had unnecessary checks which got removed. Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15qlcnic: Fix VF reset recoveryManish Chopra
o At the time of firmware hang "adapter->need_fw_reset" variable gets set but after re-initialization of firmware OR at the time of VF re-initialization that variable was not getting cleared which was leading to failure in VF reset recovery.Fix it by clearing this variable before re-initializing VF Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15bridge: fix NULL pointer deref of br_port_get_rcuHong Zhiguo
The NULL deref happens when br_handle_frame is called between these 2 lines of del_nbp: dev->priv_flags &= ~IFF_BRIDGE_PORT; /* --> br_handle_frame is called at this time */ netdev_rx_handler_unregister(dev); In br_handle_frame the return of br_port_get_rcu(dev) is dereferenced without check but br_port_get_rcu(dev) returns NULL if: !(dev->priv_flags & IFF_BRIDGE_PORT) Eric Dumazet pointed out the testing of IFF_BRIDGE_PORT is not necessary here since we're in rcu_read_lock and we have synchronize_net() in netdev_rx_handler_unregister. So remove the testing of IFF_BRIDGE_PORT and by the previous patch, make sure br_port_get_rcu is called in bridging code. Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15bridge: use br_port_get_rtnl within rtnl lockHong Zhiguo
current br_port_get_rcu is problematic in bridging path (NULL deref). Change these calls in netlink path first. Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: ps3_gelic: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/toshiba/ps3_gelic_net.c It's a NOOP since 2.6.35 and I will remove it one day ;) Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: smsc: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from code in drivers/net/ethernet/smsc/ It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: pasemi: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/pasemi/pasemi_mac.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: natsemi: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from code in drivers/net/ethernet/natsemi/ It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: ks8851-ml: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/micrel/ks8851_mll.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: pxa168_eth: remove deprecated IRQF_DISABLEDMichael Opdenacker
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: lantiq_etop: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/lantiq_etop.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: hp100: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/hp/hp100.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15net: fec: remove deprecated IRQF_DISABLEDMichael Opdenacker
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/freescale/fec_main.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-16Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes A few more radeon fixes. A fix for UVD on AGP cards, a fix for non-full screen scaling on laptop panels with DP bridge chips, and a bunch of dpm fixes. * 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: avoid UVD corruptions on AGP cards drm/radeon: fix panel scaling with eDP and LVDS bridges drm/radeon/dpm: rework auto performance level enable drm/radeon: Fix hmdi typo drm/radeon/dpm/rs780: fix force_performance state for same sclks drm/radeon/dpm/rs780: don't enable sclk scaling if not required drm/radeon/dpm/rs780: add some sanity checking to sclk scaling drm/radeon/dpm/rs780: use drm_mode_vrefresh()
2013-09-15drm/radeon: avoid UVD corruptions on AGP cardsChristian König
Putting everything into VRAM seems to help. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2013-09-15drm/radeon: fix panel scaling with eDP and LVDS bridgesAlex Deucher
We were using the wrong set_properly callback so we always ended up with Full scaling even if something else (Center or Full aspect) was selected. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2013-09-15drm/radeon/dpm: rework auto performance level enableAlex Deucher
Calling force_performance_level() from set_power_state() doesn't work on some asics because the current power state pointer has not been properly updated at that point. Move the calls to force_performance_level() out of the asic specific set_power_state() functions and into the main power state sequence. Fixes dpm resume on SI. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-15drm/radeon: Fix hmdi typoDamien Lespiau
I keep making that one, so checked if I was the only one. Apparently not. Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-15drm/radeon/dpm/rs780: fix force_performance state for same sclksAlex Deucher
If the low and high sclks within a power state are the same, there no need to enable sclk scaling. Enabling sclk scaling can cause display stability issues on some boards. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15drm/radeon/dpm/rs780: don't enable sclk scaling if not requiredAlex Deucher
If the low and high sclks are the same, there is no need to enable sclk scaling. This causes display stability issues on certain boards. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60857 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Christian König <christian.koenig@amd.com>