- 25 9月, 2013 16 次提交
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由 Thierry Escande 提交于
This adds support for NFC-A technology at 106 kbits/s. The stack can detect tags of type 1 and 2. There is no support for collision detection. Tags can be read and written by using a user space application or a daemon like neard. The flow of polling operations for NFC-A detection is as follow: 1 - The digital stack sends the SENS_REQ command to the NFC device. 2 - The NFC device receives a SENS_RES response from a peer device and passes it to the digital stack. 3 - If the SENS_RES response identifies a type 1 tag, detection ends. NFC core is notified through nfc_targets_found(). 4 - Otherwise, the digital stack sets the cascade level of NFCID1 to CL1 and sends the SDD_REQ command. 5 - The digital stack selects SEL_CMD and SEL_PAR according to the cascade level and sends the SDD_REQ command. 4 - The digital stack receives a SDD_RES response for the cascade level passed in the SDD_REQ command. 5 - The digital stack analyses (part of) NFCID1 and verify BCC. 6 - The digital stack sends the SEL_REQ command with the NFCID1 received in the SDD_RES. 6 - The peer device replies with a SEL_RES response 7 - Detection ends if NFCID1 is complete. NFC core notified of new target by nfc_targets_found(). 8 - If NFCID1 is not complete, the cascade level is incremented (up to and including CL3) and the execution continues at step 5 to get the remaining bytes of NFCID1. Once target detection is done, type 1 and 2 tag commands must be handled by a user space application (i.e neard) through the NFC core. Responses for type 1 tag are returned directly to user space via NFC core. Responses of type 2 commands are handled differently. The digital stack doesn't analyse the type of commands sent through im_transceive() and must differentiate valid responses from error ones. The response process flow is as follow: 1 - If the response length is 16 bytes, it is a valid response of a READ command. the packet is returned to the NFC core through the callback passed to im_transceive(). Processing stops. 2 - If the response is 1 byte long and is a ACK byte (0x0A), it is a valid response of a WRITE command for example. First packet byte is set to 0 for no-error and passed back to the NFC core. Processing stops. 3 - Any other response is treated as an error and -EIO error code is returned to the NFC core through the response callback. Moreover, since the driver can't differentiate success response from a NACK response, the digital stack has to handle CRC calculation. Thus, this patch also adds support for CRC calculation. If the driver doesn't handle it, the digital stack will calculate CRC and will add it to sent frames. CRC will also be checked and removed from received frames. Pointers to the correct CRC calculation functions are stored in the digital stack device structure when a target is detected. This avoids the need to check the current target type for every call to im_transceive() and for every response received from a peer device. Signed-off-by: NThierry Escande <thierry.escande@linux.intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Thierry Escande 提交于
This implements the mechanism used to send commands to the driver in initiator mode through in_send_cmd(). Commands are serialized and sent to the driver by using a work item on the system workqueue. Responses are handled asynchronously by another work item. Once the digital stack receives the response through the command_complete callback, the next command is sent to the driver. This also implements the polling mechanism. It's handled by a work item cycling on all supported protocols. The start poll command for a given protocol is sent to the driver using the mechanism described above. The process continues until a peer is discovered or stop_poll is called. This patch implements the poll function for NFC-A that sends a SENS_REQ command and waits for the SENS_RES response. Signed-off-by: NThierry Escande <thierry.escande@linux.intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Thierry Escande 提交于
This is the initial commit of the NFC Digital Protocol stack implementation. It offers an interface for devices that don't have an embedded NFC Digital protocol stack. The driver instantiates the digital stack by calling nfc_digital_allocate_device(). Within the nfc_digital_ops structure, the driver specifies a set of function pointers for driver operations. These functions must be implemented by the driver and are: in_configure_hw: Hardware configuration for RF technology and communication framing in initiator mode. This is a synchronous function. in_send_cmd: Initiator mode data exchange using RF technology and framing previously set with in_configure_hw. The peer response is returned through callback cb. If an io error occurs or the peer didn't reply within the specified timeout (ms), the error code is passed back through the resp pointer. This is an asynchronous function. tg_configure_hw: Hardware configuration for RF technology and communication framing in target mode. This is a synchronous function. tg_send_cmd: Target mode data exchange using RF technology and framing previously set with tg_configure_hw. The peer next command is returned through callback cb. If an io error occurs or the peer didn't reply within the specified timeout (ms), the error code is passed back through the resp pointer. This is an asynchronous function. tg_listen: Put the device in listen mode waiting for data from the peer device. This is an asynchronous function. tg_listen_mdaa: If supported, put the device in automatic listen mode with mode detection and automatic anti-collision. In this mode, the device automatically detects the RF technology and executes the anti-collision detection using the command responses specified in mdaa_params. The mdaa_params structure contains SENS_RES, NFCID1, and SEL_RES for 106A RF tech. NFCID2 and system code (sc) for 212F and 424F. The driver returns the NFC-DEP ATR_REQ command through cb. The digital stack deducts the RF tech by analyzing the SoD of the frame containing the ATR_REQ command. This is an asynchronous function. switch_rf: Turns device radio on or off. The stack does not call explicitly switch_rf to turn the radio on. A call to in|tg_configure_hw must turn the device radio on. abort_cmd: Discard the last sent command. Then the driver registers itself against the digital stack by using nfc_digital_register_device() which in turn registers the digital stack against the NFC core layer. The digital stack implements common NFC operations like dev_up(), dev_down(), start_poll(), stop_poll(), etc. This patch is only a skeleton and NFC operations are just stubs. Signed-off-by: NThierry Escande <thierry.escande@linux.intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Samuel Ortiz 提交于
If we start the polling loop from a listening cycle, we need to start the corresponding timer as well. This bug showed up after commit dfccd0f5 as it was impossible to start from a listening cycle before it. Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Samuel Ortiz 提交于
In order to improve active devices detection, we send an ATR_REQ between each passive detection cycle. Without this algorithm, Android 4.3 based devices running the Broadcom stack are hardly detected. Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Samuel Ortiz 提交于
As we can potentially get DEP up events without having sent a netlink command, we need to set the active target properly from dep_link_is_up. Spontaneous DEP up events can come from devices that detected an active p2p target. In that case there is no need to call the netlink DEP up command as the link is already up and running. Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Eric Lapuyade 提交于
NCI SPI layer should not manage the nci dev, this is the job of the nci chipset driver. This layer should be limited to frame/deframe nci packets, and optionnaly check integrity (crc) and manage the ack/nak protocol. The NCI SPI must not be mixed up with an NCI dev. spi_[dev|device] are therefore renamed to a simple spi for more clarity. The header and crc sizes are moved to nci.h so that drivers can use them to reserve space in outgoing skbs. nci_spi_send() is exported to be accessible by drivers. Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Eric Lapuyade 提交于
struct nfc_phy_ops is not an HCI structure only, it can also be used by NCI or direct NFC Core drivers. Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Eric Lapuyade 提交于
An hci dev is an hdev. An nci dev is an ndev. Calling an nci spi dev an ndev is misleading since it's not the same thing. The nci dev contained in the nci spi dev is also named inconsistently. Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Eric Lapuyade 提交于
Signed-off-by: NEric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Joe Perches 提交于
Use standardized styles to minimize coding defects. Always use nfc_<level> where feasible. Add \n to formats where appropriate. Typo "it it" correction. Add #define pr_fmt where appropriate. Remove function tracing logging messages. Remove OOM messages. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Joe Perches 提交于
Use a more standard kernel style macro logging name. Standardize the spacing of the "NFC: " prefix. Add \n to uses, remove from macro. Fix the defective uses that already had a \n. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Joe Perches 提交于
Use the generic kernel function instead of a home-grown one that does the same thing. Add \n to uses not at the macro. Don't add \n where the nfc_dev_dbg macro mistakenly had them already. Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Arron Wang 提交于
To enable the UICC secure element, we first enable the UICC gate list in order for the SE to be able to use all RF technologies. For the embedded SE, we just turn the eSE default mode to ON. Signed-off-by: NArron Wang <arron.wang@intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Arron Wang 提交于
This will be needed by all NFC driver implementing the SE ops. Signed-off-by: NArron Wang <arron.wang@intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Arron Wang 提交于
For the SWP secure element, we send the proprietary SELF_TEST_SWP command and check the response. For the WI secure element, we simply try to switch to the default embedded SE mode. If that works, it means we have an embedded SE. Signed-off-by: NArron Wang <arron.wang@intel.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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- 20 9月, 2013 9 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 Linus Torvalds 提交于
Pull networking fixes from David Miller: 1) If the local_df boolean is set on an SKB we have to allocate a unique ID even if IP_DF is set in the ipv4 headers, from Ansis Atteka. 2) Some fixups for the new chipset support that went into the sfc driver, from Ben Hutchings. 3) Because SCTP bypasses a good chunk of, and actually duplicates, the logic of the ipv6 output path, some IPSEC things don't get done properly. Integrate SCTP better into the ipv6 output path so that these problems are fixed and such issues don't get missed in the future either. From Daniel Borkmann. 4) Fix skge regressions added by the DMA mapping error return checking added in v3.10, from Mikulas Patocka. 5) Kill some more IRQF_DISABLED references, from Michael Opdenacker. 6) Fix races and deadlocks in the bridging code, from Hong Zhiguo. 7) Fix error handling in tun_set_iff(), in particular don't leak resources. From Jason Wang. 8) Prevent format-string injection into xen-netback driver, from Kees Cook. 9) Fix regression added to netpoll ARP packet handling, in particular check for the right ETH_P_ARP protocol code. From Sonic Zhang. 10) Try to deal with AMD IOMMU errors when using r8169 chips, from Francois Romieu. 11) Cure freezes due to recent changes in the rt2x00 wireless driver, from Stanislaw Gruszka. 12) Don't do SPI transfers (which can sleep) in interrupt context in cw1200 driver, from Solomon Peachy. 13) Fix LEDs handling bug in 5720 tg3 chips already handled for 5719. From Nithin Sujir. 14) Make xen_netbk_count_skb_slots() count the actual number of slots that will be used, taking into consideration packing and other issues that the transmit path will run into. From David Vrabel. 15) Use the correct maximum age when calculating the bridge message_age_timer, from Chris Healy. 16) Get rid of memory leaks in mcs7780 IRDA driver, from Alexey Khoroshilov. 17) Netfilter conntrack extensions were converted to RCU but are not always freed properly using kfree_rcu(). Fix from Michal Kubecek. 18) VF reset recovery not being done correctly in qlcnic driver, from Manish Chopra. 19) Fix inverted test in ATM nicstar driver, from Andy Shevchenko. 20) Missing workqueue destroy in cxgb4 error handling, from Wei Yang. 21) Internal switch not initialized properly in bgmac driver, from Rafał Miłecki. 22) Netlink messages report wrong local and remote addresses in IPv6 tunneling, from Ding Zhi. 23) ICMP redirects should not generate socket errors in DCCP and SCTP. We're still working out how this should be handled for RAW and UDP sockets. From Daniel Borkmann and Duan Jiong. 24) We've had several bugs wherein the network namespace's loopback device gets accessed after it is free'd, NULL it out so that we can catch these problems more readily. From Eric W Biederman. 25) Fix regression in TCP RTO calculations, from Neal Cardwell. 26) Fix too early free of xen-netback network device when VIFs still exist. From Paul Durrant. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits) netconsole: fix a deadlock with rtnl and netconsole's mutex netpoll: fix NULL pointer dereference in netpoll_cleanup skge: fix broken driver ip: generate unique IP identificator if local fragmentation is allowed ip: use ip_hdr() in __ip_make_skb() to retrieve IP header xen-netback: Don't destroy the netdev until the vif is shut down net:dccp: do not report ICMP redirects to user space cnic: Fix crash in cnic_bnx2x_service_kcq() bnx2x, cnic, bnx2i, bnx2fc: Fix bnx2i and bnx2fc regressions. vxlan: Avoid creating fdb entry with NULL destination tcp: fix RTO calculated from cached RTT drivers: net: phy: cicada.c: clears warning Use #include <linux/io.h> instead of <asm/io.h> net loopback: Set loopback_dev to NULL when freed batman-adv: set the TAG flag for the vid passed to BLA netfilter: nfnetlink_queue: use network skb for sequence adjustment net: sctp: rfc4443: do not report ICMP redirects to user space net: usb: cdc_ether: use usb.h macros whenever possible net: usb: cdc_ether: fix checkpatch errors and warnings net: usb: cdc_ether: Use wwan interface for Telit modules ip6_tunnels: raddr and laddr are inverted in nl msg ...
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由 Nikolay Aleksandrov 提交于
This bug was introduced by commit 7a163bfb ("netconsole: avoid a crash with multiple sysfs writers"). In store_enabled() we have the following sequence: acquire nt->mutex then rtnl, but in the netconsole netdev notifier we have rtnl then nt->mutex effectively leading to a deadlock. The NULL pointer dereference that the above commit tries to fix is actually due to another bug in netpoll_cleanup(). This is fixed by dropping the mutex from the netdev notifier as it's already protected by rtnl. Signed-off-by: NNikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nikolay Aleksandrov 提交于
I've been hitting a NULL ptr deref while using netconsole because the np->dev check and the pointer manipulation in netpoll_cleanup are done without rtnl and the following sequence happens when having a netconsole over a vlan and we remove the vlan while disabling the netconsole: CPU 1 CPU2 removes vlan and calls the notifier enters store_enabled(), calls netdev_cleanup which checks np->dev and then waits for rtnl executes the netconsole netdev release notifier making np->dev == NULL and releases rtnl continues to dereference a member of np->dev which at this point is == NULL Signed-off-by: NNikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mikulas Patocka 提交于
The patch 136d8f37 broke the skge driver. Note this part of the patch: + if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) { + dev_kfree_skb(nskb); + goto resubmit; + } + pci_unmap_single(skge->hw->pdev, dma_unmap_addr(e, mapaddr), dma_unmap_len(e, maplen), PCI_DMA_FROMDEVICE); skb = e->skb; prefetch(skb->data); - skge_rx_setup(skge, e, nskb, skge->rx_buf_size); The function skge_rx_setup modifies e->skb to point to the new skb. Thus, after this change, the new buffer, not the old, is returned to the networking stack. This bug is present in kernels 3.11, 3.11.1 and 3.12-rc1. The patch should be queued for 3.11-stable. Signed-off-by: NMikulas Patocka <mpatocka@redhat.com> Reported-by: NMikulas Patocka <mpatocka@redhat.com> Reported-by: NVasiliy Glazov <vascom2@gmail.com> Tested-by: NMikulas Patocka <mpatocka@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ansis Atteka 提交于
If local fragmentation is allowed, then ip_select_ident() and ip_select_ident_more() need to generate unique IDs to ensure correct defragmentation on the peer. For example, if IPsec (tunnel mode) has to encrypt large skbs that have local_df bit set, then all IP fragments that belonged to different ESP datagrams would have used the same identificator. If one of these IP fragments would get lost or reordered, then peer could possibly stitch together wrong IP fragments that did not belong to the same datagram. This would lead to a packet loss or data corruption. Signed-off-by: NAnsis Atteka <aatteka@nicira.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ansis Atteka 提交于
skb->data already points to IP header, but for the sake of consistency we can also use ip_hdr() to retrieve it. Signed-off-by: NAnsis Atteka <aatteka@nicira.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Paul Durrant 提交于
Without this patch, if a frontend cycles through states Closing and Closed (which Windows frontends need to do) then the netdev will be destroyed and requires re-invocation of hotplug scripts to restore state before the frontend can move to Connected. Thus when udev is not in use the backend gets stuck in InitWait. With this patch, the netdev is left alone whilst the backend is still online and is only de-registered and freed just prior to destroying the vif (which is also nicely symmetrical with the netdev allocation and registration being done during probe) so no re-invocation of hotplug scripts is required. Signed-off-by: NPaul Durrant <paul.durrant@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Acked-by: NWei Liu <wei.liu2@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.linux-mips.org/pub/scm/ralf/upstream-linus由 Linus Torvalds 提交于
Pull MIPS updates from Ralf Baechle: - Minor updates and fixes to the Octeon ethernet driver in staging - A fix to VGA_MAP_MEM() for 64 bit platforms - Fix a workaround for 74K/1074K processors - The symlink arch/mips/boot/dts/include/dt-bindings was pointing to a a file with a name ending in \n. I think this may have been caused by a git bug with with patches sent by email - A build fix for VGA console on BCM1480-based systems - Fix PCI device access via "/sys/bus/pci/.../resource0" or similar work for Alchemy platforms - Fix potential data leak on MIPS R5 cores. This doesn't add proper support for any R5 features, just ensures a kernel without such support will be secure to run - Adding a macros for the CP0 Config5 register to be used by the R5 fix - Make get_cycles() actually return something useful where possible This also requires a preparatory patch for performance sake - Fix a warning about the use of smp_processor_id() in preemptible code. Again this includes a preparatory patch adding the infrastructure to be used by the actual patch - Finally remove pointless one-line comment * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Fix invalid symbolic link file MIPS: PCI: pci-bcm1480: Include missing vt.h header MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs. MIPS: Add MIPS R5 config5 register. MIPS: PCI: Use pci_resource_to_user to map pci memory space properly MIPS: 74K/1074K: Correct erratum workaround. MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks MIPS: Remove useless comment about kprobe from arch/mips/Makefile MIPS: Fix VGA_MAP_MEM macro. MIPS: Reimplement get_cycles(). MIPS: Optimize current_cpu_type() for better code. MIPS: Fix accessing to per-cpu data when flushing the cache MIPS: Provide nice way to access boot CPU's data. staging: octeon-ethernet: rgmii: enable interrupts that we can handle staging: octeon-ethernet: remove skb alloc failure warnings staging: octeon-ethernet: make dropped packets to consume NAPI budget
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client由 Linus Torvalds 提交于
Pull ceph fixes from Sage Weil: "These fix several bugs with RBD from 3.11 that didn't get tested in time for the merge window: some error handling, a use-after-free, and a sequencing issue when unmapping and image races with a notify operation. There is also a patch fixing a problem with the new ceph + fscache code that just went in" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: fscache: check consistency does not decrement refcount rbd: fix error handling from rbd_snap_name() rbd: ignore unmapped snapshots that no longer exist rbd: fix use-after free of rbd_dev->disk rbd: make rbd_obj_notify_ack() synchronous rbd: complete notifies before cleaning up osd_client and rbd_dev libceph: add function to ensure notifies are complete
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- 19 9月, 2013 15 次提交
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由 Madhavan Srinivasan 提交于
Commit 3b29aa5b [MIPS: add <dt-bindings/> symlink] created a symlink file in include/dt-bindings. Even though commit diff is fine, the symlink is invalid and ls -lb shows a newline character at the end of the filename: lrwxrwxrwx 1 maddy maddy 35 Sep 19 18:11 dt-bindings -> ../../../../../include/dt-bindings\n Signed-off-by: NMadhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: steven.hill@imgtec.com Cc: mmarek@suse.cz Cc: swarren@nvidia.com Cc: linux-mips@linux-mips.org Cc: linux-kbuild@vger.kernel.org Cc: james.hogan@imgtec.com Patchwork: https://patchwork.linux-mips.org/patch/5859/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Markos Chandras 提交于
It's needed for the MAX_NR_CONSOLES macro. Fixes the following build problem on a randconfig: arch/mips/pci/pci-bcm1480.c: In function 'bcm1480_pcibios_init': arch/mips/pci/pci-bcm1480.c:261:36: error: 'MAX_NR_CONSOLES' undeclared (first use in this function) arch/mips/pci/pci-bcm1480.c:261:36: note: each undeclared identifier is reported only once for each function it appears in make[1]: *** [arch/mips/pci/pci-bcm1480.o] Error 1 Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5858/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Currently the kernel will always use the FR=0 register model for O32. If an O32 application did enable FR=1 mode, some data from another application might be leaked in the extra registers becoming visible. Iow, this patch is meant to make the kernel MIPS R5 tolerant but leaves proper MIPS R5 support to a future patchset. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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git://people.freedesktop.org/~airlied/linux由 Linus Torvalds 提交于
Pull drm radeon/nouveau/core fixes from Dave Airlie: "Mostly radeon fixes, with some nouveau bios parser, ttm fix and a fix for AST driver" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (42 commits) drm/fb-helper: don't sleep for screen unblank when an oops is in progress drm, ttm Fix uninitialized warning drm/ttm: fix the tt_populated check in ttm_tt_destroy() drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM drm/nouveau/kms: enable for non-vga pci classes drm/nouveau/bios/init: stub opcode 0xaa 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() drm/udl: rip out set_need_resched drm/ast: fix the ast open key function drm/radeon/dpm: add bapm callback for kb/kv drm/radeon/dpm: add bapm callback for trinity drm/radeon/dpm: add infrastructure to properly handle bapm ...
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由 Daniel Vetter 提交于
Otherwise the system will burn even brighter and worse, leave the user wondering what's going on exactly. Since we already have a panic handler which will (try) to restore the entire fbdev console mode, we can just bail out. Inspired by a patch from Konstantin Khlebnikov. The callchain leading to this, cut&pasted from Konstantin's original patch: callstack: panic() bust_spinlocks(1) unblank_screen() vc->vc_sw->con_blank() fbcon_blank() fb_blank() info->fbops->fb_blank() drm_fb_helper_blank() drm_fb_helper_dpms() drm_modeset_lock_all() mutex_lock(&dev->mode_config.mutex) Note that the entire locking in the fb helper around panic/sysrq and kdbg is ... non-existant. So we have a decent change of blowing up everything. But since reworking this ties in with funny concepts like the fbdev notifier chain or the impressive things which happen around console_lock while oopsing, I'll leave that as an exercise for braver souls than me. Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Cc: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Dave Airlie <airlied@gmail.com> Reviewed-by: NRob Clark <robdclark@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Prarit Bhargava 提交于
Fix uninitialized warning. drivers/gpu/drm/ttm/ttm_object.c: In function ‘ttm_base_object_lookup’: drivers/gpu/drm/ttm/ttm_object.c:213:10: error: ‘base’ may be used uninitialized in this function [-Werror=maybe-uninitialized] kref_put(&base->refcount, ttm_release_base); ^ drivers/gpu/drm/ttm/ttm_object.c:221:26: note: ‘base’ was declared here struct ttm_base_object *base; Signed-off-by: NPrarit Bhargava <prarit@redhat.com> Reviewed-by: NRob Clark <robdclark@gmail.com> Reviewed-by: NDavid Herrmann <dh.herrmann@gmail.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Ben Skeggs 提交于
After a vmalloc failure in ttm_dma_tt_alloc_page_directory(), ttm_dma_tt_init() will call ttm_tt_destroy() to cleanup, and end up inside the driver's unpopulate() hook when populate() has never yet been called. On nouveau, the first issue to be hit because of this is that dma_address[] may be a NULL pointer. After working around this, ttm_pool_unpopulate() may potentially hit the same issue with the pages[] array. It seems to make more sense to avoid calling unpopulate on already unpopulated TTMs than to add checks to all the implementations. Signed-off-by: NBen Skeggs <bskeggs@redhat.com> Reviewed-by: NThomas Hellstrom <thellstrom@vmware.com> Cc: stable@vger.kernel.org Cc: Jerome Glisse <jglisse@redhat.com> Signed-off-by: NDave Airlie <airlied@redhat.com>
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由 Dave Airlie 提交于
Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes A couple of bios parser fixes (one for ancient chips, another for new ones - important in Optimus configs). Another to make sure KMS is enabled on certain Optimus configs, and a TTM failure path fix. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM drm/nouveau/kms: enable for non-vga pci classes drm/nouveau/bios/init: stub opcode 0xaa
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs由 Linus Torvalds 提交于
Pull vfs fixes from Al Viro: "atomic_open-related fixes (Miklos' series, with EEXIST-related parts replaced with fix in fs/namei.c:atomic_open() instead of messing with the instances) + race fix in autofs + leak on failure exit in 9p" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: 9p: don't forget to destroy inode cache if fscache registration fails atomic_open: take care of EEXIST in no-open case with O_CREAT|O_EXCL in fs/namei.c vfs: don't set FILE_CREATED before calling ->atomic_open() nfs: set FILE_CREATED gfs2: set FILE_CREATED cifs: fix filp leak in cifs_atomic_open() vfs: improve i_op->atomic_open() documentation autofs4: close the races around autofs4_notify_daemon()
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由 Wolfgang Grandegger 提交于
[ralf@linux-mips.org: This only matters to Alchemy platforms. On other platforms fixup_bigphys_addr is just an identidy mapping.] Signed-off-by: NWolfgang Grandegger <wg@denx.de> Cc: tiejun.chen <tiejun.chen@windriver.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/1868/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Maciej W. Rozycki 提交于
Make sure 74K revision numbers are not applied to the 1074K. Also catch invalid usage. Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5857/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Maciej W. Rozycki 提交于
Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout. The change does not touch places that use shifted or partial masks. Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5838/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux由 Linus Torvalds 提交于
Pull pstore/compression fixes from Tony Luck: "Three pstore fixes related to compression: 1) Better adjustment of size of compression buffer (was too big for EFIVARS backend resulting in compression failure 2) Use zlib_inflateInit2 instead of zlib_inflateInit 3) Don't print messages about compression failure. They will waste space that may better be used to log console output leading to the crash" * tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore: Remove the messages related to compression failure pstore: Use zlib_inflateInit2 instead of zlib_inflateInit pstore: Adjust buffer size for compression for smaller registered buffers
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由 Wu Zhangjin 提交于
The commit c1bf207d (kernel.org) rsp. 58e9ad32a48dce37ffeea912f55bd1c94b85ad7f (lmo) [MIPS: kprobe: Add support] introduced a useless comment. Signed-off-by: NWu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: David Daney <ddaney@caviumnetworks.com> Patchwork: https://patchwork.linux-mips.org/patch/1765/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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