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2013-09-13bfin_mac: remove deprecated IRQF_DISABLEDMichael Opdenacker1-2/+2
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/adi/bfin_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> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-13xen-netback: count number required slots for an skb more carefullyDavid Vrabel1-30/+64
When a VM is providing an iSCSI target and the LUN is used by the backend domain, the generated skbs for direct I/O writes to the disk have large, multi-page skb->data but no frags. With some lengths and starting offsets, xen_netbk_count_skb_slots() would be one short because the simple calculation of DIV_ROUND_UP(skb_headlen(), PAGE_SIZE) was not accounting for the decisions made by start_new_rx_buffer() which does not guarantee responses are fully packed. For example, a skb with length < 2 pages but which spans 3 pages would be counted as requiring 2 slots but would actually use 3 slots. skb->data: | 1111|222222222222|3333 | Fully packed, this would need 2 slots: |111122222222|22223333 | But because the 2nd page wholy fits into a slot it is not split across slots and goes into a slot of its own: |1111 |222222222222|3333 | Miscounting the number of slots means netback may push more responses than the number of available requests. This will cause the frontend to get very confused and report "Too many frags/slots". The frontend never recovers and will eventually BUG. Fix this by counting the number of required slots more carefully. In xen_netbk_count_skb_slots(), more closely follow the algorithm used by xen_netbk_gop_skb() by introducing xen_netbk_count_frag_slots() which is the dry-run equivalent of netbk_gop_frag_copy(). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-13tg3: Expand led off fix to include 5720Nithin Sujir1-0/+1
Commit 989038e217e94161862a959e82f9a1ecf8dda152 ("tg3: Don't turn off led on 5719 serdes port 0") added code to skip turning led off on port 0 of the 5719 since it powered down other ports. This workaround needs to be enabled on the 5720 as well. Cc: stable@vger.kernel.org Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-13tuntap: correctly handle error in tun_set_iff()Jason Wang1-3/+8
Commit c8d68e6be1c3b242f1c598595830890b65cea64a (tuntap: multiqueue support) only call free_netdev() on error in tun_set_iff(). This causes several issues: - memory of tun security were leaked - use after free since the flow gc timer was not deleted and the tfile were not detached This patch solves the above issues. Reported-by: Wannes Rombouts <wannes.rombouts@epitech.eu> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-13xen-netback: fix possible format string flawKees Cook1-1/+1
This makes sure a format string cannot accidentally leak into the kthread_run() call. Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-13igb: Read flow control for i350 from correct EEPROM sectionFujinaka, Todd1-1/+9
Flow control is defined in the four EEPROM sections but the driver only reads from section 0. Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-13igb: Add additional get_phy_id call for i354 devicesCarolyn Wyborny1-0/+4
This patch fixes a problem where some ports can fail to initialize on a cold boot. This patch adds an additional call to read the PHY id for i354 devices in order workaround the hardware problem. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12Merge tag 'master-2013-09-09' of ↵David S. Miller7-16/+60
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: ==================== This is a pull request for a few early fixes for the 3.12 stream. Alexey Khoroshilov corrects a use-after-free issue on rtl8187 found by the Linux Driver Verification project. Arend van Spriel provides a brcmfmac patch to fix a build issue reported by Randy Dunlap. Hauke Mehrtens offers a bcma fix to properly account for the storage width of error code values before checking them. Solomon Peachy brings a pair of cw1200 fixes to avoid hangs in that driver with SPI devices. One avoids transfers in interrupt context, the other fixes a locking issue. Stanislaw Gruszka changes the initialization of the rt2800 driver to avoid a freeze, addressing a bug in the Red Hat bugzilla. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12r8169: enforce RX_MULTI_EN for the 8168f.françois romieu1-0/+1
Same narrative as eb2dc35d99028b698cdedba4f5522bc43e576bd2 ("r8169: RxConfig hack for the 8168evl.") regarding AMD IOMMU errors. RTL_GIGA_MAC_VER_36 - 8168f as well - has not been reported to behave the same. Tested-by: David R <david@unsolicited.net> Tested-by: Frédéric Leroy <fredo@starox.org> Cc: Hayes Wang <hayeswang@realtek.com> Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12net: qmi_wwan: add new Qualcomm devicesBjørn Mork1-1/+129
Adding the device list from the Windows driver description files included with a new Qualcomm MDM9615 based device, "Alcatel-sbell ASB TL131 TDD LTE", from China Mobile. This device is tested and verified to work. The others are assumed to work based on using the same Windows driver. Many of these devices support multiple QMI/wwan ports, requiring multiple interface matching entries. All devices are composite, providing a mix of one or more serial, storage or Android Debug Brigde functions in addition to the wwan function. This device list included an update of one previously known device, which was incorrectly assumed to have a Gobi 2K layout. This is corrected. Reported-by: 王康 <scateu@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12Merge branch 'master' of ↵David S. Miller29-0/+30315
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates This series implements the new i40e driver for Intel's upcoming Intel(R) Ethernet Controller XL710 Family of devices. V7: many changes from a few comments: use linux errno types change I40E_SUCCESS to 0, standardize returns change s32 return values to int use void return values where possible prefer use of int over i40e_status V6: rename Kbuild to Makefile rename i40e_mem[set|cpy] to regular memset/memcpy V5: remove sysfs support from this set, will rearchitect changes from community comments V4: addresses remaining community comments, mostly trivial edits. major sparse based cleanup of possible endian issues removal of most of __func__ references sizeof(*var) instead of sizeof(struct ...) change 'NULL ==' tests to !NULL implement xps use kernel bitshift macros (upper_32_bits, etc) V3: many more individual comments addressed, thanks reviewers! Many other changes due to internal review and development. V2: each patch has individual comments, in general, feedback from the list was applied and addressed. Many changes due to internal review and coding as well. V1: initial send Let me start by saying thanks and we appreciate any time spent by those of you who review and comment on this new driver, and we will attempt to address and respond to all issues brought to our attention. I tried to break the patches up to ease review, but the series should apply and still be bisectable, as the last patch adds the driver to the kernel compile with CONFIG_I40E. This driver is for a brand new bit of silicon that has a different design than other Intel Ethernet silicon, and therefore needed a new driver. The hardware has quite a bit of capability and this driver is only meant to provide basic functionality at first. Future patches will continue to add functionality and bug fixes. This initial release is very early in the product cycle with the intent of getting initial support into the kernel before users have the hardware available to purchase. A software development manual is not ready yet but will be available when the hardware ships. The driver development model and interaction with community submitted patches *will not be any different* than what we are currently doing today. We plan to continue established processes. An associated i40evf driver has been posted for review. List of tools we ran in preparation: way more sparse clean make W=1, W=2 clean checkpatch (almost) clean total: 1 errors, 4 warnings, 30461 lines checked NOTE: Ignored message types: LONG_LINE - issues have been addressed and the remainders are noise. codespell clean smatch (almost) clean with a couple minor warnings coccicheck clean namespacecheck clean allmodconfig clean ppc64 build clean (untested) This driver is a team effort, thank you to Joseph Gasparakis, Shannon Nelson, Anjali Singhai-Jain, Mitch Williams, Neerav Parikh, Vasu Dev, Kavindya Deegala, Yi Zou, and PJ Waskiewicz. TODO (known issues) BQL implementation finish rtnl_stat64 locking (we have a patch but debugging it) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12net: tilegx driver: avoid compiler warningChris Metcalf1-3/+3
The "id" variable was being incremented in common code, but only initialized and used in IPv4 code. We move the increment to the IPv4 code too, and then legitimately use the uninitialized_var() macro to avoid the gcc 4.6 warning that 'id' may be used uninitialized. Note that gcc 4.7 does not warn. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12irda: vlsi_ir: Remove casting the return value which is a void pointerJingoo Han1-1/+1
Casting the return value which is a void pointer is redundant. The conversion from void pointer to any other pointer type is guaranteed by the C programming language. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12irda: donauboe: Remove casting the return value which is a void pointerJingoo Han1-3/+3
Casting the return value which is a void pointer is redundant. The conversion from void pointer to any other pointer type is guaranteed by the C programming language. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12bcm63xx_enet: remove deprecated IRQF_DISABLEDMichael Opdenacker1-4/+4
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/broadcom/bcm63xx_enet.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> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12net: korina: remove deprecated IRQF_DISABLEDMichael Opdenacker1-4/+4
This patch proposes to remove the IRQF_DISABLED flag from drivers/net/ethernet/korina.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> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-12macvlan: Move skb_clone check closer to callHerbert Xu1-4/+6
Currently macvlan calls skb_clone in macvlan_broadcast but checks for a NULL return in macvlan_broadcast_one instead. This is needlessly confusing and may lead to bugs introduced later. This patch moves the error check to where the skb_clone call is. The only other caller of macvlan_broadcast_one never passes in a NULL value so it doesn't need the check either. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Thanks, Reviewed-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-11qlcnic: Fix warning reported by kbuild test robot.Jitendra Kalsaria1-1/+1
drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c: In function 'qlcnic_handle_fw_message': drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c:922:4: warning: overflow in implicit constant conversion [-Woverflow] Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-11bonding: fix bond_arp_rcv setting and arp validate desync statenikolay@redhat.com3-5/+19
We make bond_arp_rcv global so it can be used in bond_sysfs if the bond interface is up and arp_interval is being changed to a positive value and cleared otherwise as per Jay's suggestion. This also fixes a problem where bond_arp_rcv was set even though arp_validate was disabled while the bond was up by unsetting recv_probe in bond_store_arp_validate and respectively setting it if enabled. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com> Acked-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-11bonding: fix store_arp_validate race with mode changenikolay@redhat.com1-4/+10
We need to protect store_arp_validate via rtnl because it can race with mode changing and we can end up having arp_validate set in a mode different from active-backup. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Acked-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-11bnx2x: avoid atomic allocations during initializationMichal Schmidt1-15/+23
During initialization bnx2x allocates significant amounts of memory (for rx data, rx SGEs, TPA pool) using atomic allocations. I received a report where bnx2x failed to allocate SGEs and it had to fall back to TPA-less operation. Let's use GFP_KERNEL allocations during initialization, which runs in process context. Add gfp_t parameters to functions that are used both in initialization and in the receive path. Use an unlikely branch in bnx2x_frag_alloc() to avoid atomic allocation by netdev_alloc_frag(). The branch is taken several thousands of times during initialization, but then never more. Note that fp->rx_frag_size is never greater than PAGE_SIZE, so __get_free_page() can be used here. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-11sfc: Reinitialise and re-validate datapath caps after MC rebootBen Hutchings2-0/+13
After an MC reboot, the datapath may be running a different firmware variant and have different capabilities. It is critical that we know the current capabilities so that we can pass valid flags to MC_CMD_INIT_EVQ. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-09-11sfc: Clean up validation of datapath capabilitiesBen Hutchings1-19/+22
Rename efx_ef10_init_capabilities() to the more specific efx_ef10_init_datapath_caps(). Stop accepting short responses to MC_CMD_GET_CAPABILITIES; we don't need to support pre-production firmware. Move the check for RX prefix support from efx_ef10_probe() into efx_ef10_init_datapath_caps() and use consistent error messages for missing TSO support and missing RX prefix support. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-09-11sfc: Reset derived rx_bad_bytes statistic when EF10 MC is rebootedBen Hutchings1-0/+5
If the MC reboots then the stats it reports to us will have been reset. We need to reset ours to get efx_update_diff_stat() working properly. (This is a re-run of commit 876be083b669 'sfc: Reset driver's MAC stats after MC reboot seen'.) Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-09-11sfc: Disable PTP on EF10 until we're ready to handle inline RX timestampsBen Hutchings1-2/+0
Unlike Siena where timestamping is provided by a peripheral, EF10 delivers RX timestamps in the packet prefix. However the driver doesn't yet support this. We are also creating a PHC device for each EF10 function, even though the clock is really shared between all of them. Disable hardware PTP/timestamping support until it's complete. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-09-11i40e: include i40e in kernel properJesse Brandeburg3-0/+63
This patch adds the changes for Kconfig, i40e.txt, MAINTAINERS, Kbuild and new i40e/Makefile to build i40e with the kernel. New driver build option is CONFIG_I40E Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-11i40e: debugfs interfaceJesse Brandeburg1-0/+2076
This driver includes a debugfs interface for developers to get more hardware information in real-time. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-11i40e: init code and hardware supportJesse Brandeburg16-0/+13813
This patch implements the hardware specific init and management. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-11i40e: implement virtual device interfaceJesse Brandeburg3-0/+2823
While not part of this patch series, an i40evf driver is on its way, and uses these files to communicate to the PF driver. This patch contains the header and implementation files for the PF to VF interface. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-11i40e: driver core headersJesse Brandeburg3-0/+899
This patch contains the main driver header files, containing structures and data types specific to the linux driver. i40e_osdep.h contains some code that helps us adapt our OS agnostic code to Linux. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-11i40e: driver ethtool coreJesse Brandeburg1-0/+1449
This patch contains the ethtool interface and implementation. The goal in this patch series is minimal functionality while not including much in the way of "set support." Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-11i40e: transmit, receive, and NAPIJesse Brandeburg1-0/+1817
This patch contains the transmit, receive, and NAPI routines, as well as ancillary routines. This file is code that is (will be) used by both the VF and PF drivers. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-11i40e: main driver coreJesse Brandeburg1-0/+7375
This is the driver for the Intel(R) Ethernet Controller XL710 Family. This driver is targeted at basic ethernet functionality only, and will be improved upon further as time goes on. This patch contains the driver entry points but does not include transmit and receive (see the next patch in the series) routines. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Shannon Nelson <shannon.nelson@intel.com> CC: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> CC: e1000-devel@lists.sourceforge.net Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-10bnx2x: Fix configuration of doorbell blockAriel Elior2-3/+1
As part of VF RSS feature doorbell block was configured not to use dpm, but a small part of configuration was left out, preventing the driver from sending tx messages to the device. This patch adds the missing configuration. Reported-by: Eric Dumazet <eric.dumazet@gmil.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Tested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-09rt2800: change initialization sequence to fix system freezeStanislaw Gruszka1-5/+6
My commit commit c630ccf1a127578421a928489d51e99c05037054 Author: Stanislaw Gruszka <stf_xl@wp.pl> Date: Sat Mar 16 19:19:46 2013 +0100 rt2800: rearrange bbp/rfcsr initialization make Maxim machine freeze when try to start wireless device. Initialization order and sending MCU_BOOT_SIGNAL request, changed in above commit, is important. Doing things incorrectly make PCIe bus problems, which can froze the machine. This patch change initialization sequence like vendor driver do: function NICInitializeAsic() from 2011_1007_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO (PCI devices) and DPO_RT5572_LinuxSTA_2.6.1.3_20121022 (according Mediatek, latest driver for RT8070/RT3070/RT3370/RT3572/RT5370/RT5372/RT5572 USB devices). It fixes freezes on Maxim system. Resolve: https://bugzilla.redhat.com/show_bug.cgi?id=1000679 Reported-and-tested-by: Maxim Polyakov <polyakov@dexmalabs.com> Bisected-by: Igor Gnatenko <i.gnatenko.brain@gmail.com> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09rtl8187: fix use after free on failure path in rtl8187_init_urbs()Alexey Khoroshilov1-5/+10
In case of __dev_alloc_skb() failure rtl8187_init_urbs() calls usb_free_urb(entry) where 'entry' can points to urb allocated at the previous iteration. That means refcnt will be decremented incorrectly and the urb can be used after memory deallocation. The patch fixes the issue and implements error handling of init_urbs in rtl8187_start(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09brcmfmac: fix bus interface selection in KconfigArend van Spriel1-2/+2
The kernel configuration for the driver could result in compilation issues as reported by Randy Dunlap. His results are show below: "on x86_64: when CONFIG_MMC=m CONFIG_BRCMUTIL=y CONFIG_BRCMFMAC=y CONFIG_BRCMFMAC_SDIO=y This bool kconfig symbol: config BRCMFMAC_SDIO bool "SDIO bus interface support for FullMAC driver" depends on MMC allows BRCMFMAC_SDIO to be y even when MMC=m. Is there a reasonable solution to this? This causes many build errors: drivers/built-in.o: In function `brcmf_sdio_assert_info': dhd_sdio.c:(.text+0x39609b): undefined reference to `sdio_claim_host' dhd_sdio.c:(.text+0x3960d9): undefined reference to `sdio_release_host' drivers/built-in.o: In function `brcmf_sdio_readframes': dhd_sdio.c:(.text+0x396a62): undefined reference to `sdio_claim_host' dhd_sdio.c:(.text+0x396a9b): undefined reference to `sdio_release_host' ..." This patch adds the appropriate logic in Kconfig to resolve these issues. The solution was provided by Hauke Mehrtens. Reported-by: Randy Dunlap <rdunlap@infradead.org> Cc: Hauke Mehrtens <hauke@hauke-m.de> Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09cw1200: Prevent a lock-related hang in the cw1200_spi driverSolomon Peachy1-0/+9
The cw1200_spi driver tries to mirror the cw1200_sdio driver's lock API, which relies on sdio_claim_host/sdio_release_host to serialize hardware operations across multiple threads. Unfortunately the implementation was flawed, as it lacked a way to wake up the lock requestor when there was contention, often resulting in a hang. This problem was uncovered while trying to fix the spi-transfers-in-interrupt-context BUG() corrected in the previous patch. Many thanks to Dave Sizeburns for his assistance in fixing this. Signed-off-by: Solomon Peachy <pizza@shaftnet.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09cw1200: Don't perform SPI transfers in interrupt contextSolomon Peachy4-4/+33
When we get an interrupt from the hardware, the first thing the driver does is tell the device to mask off the interrupt line. Unfortunately this involves a SPI transaction in interrupt context. Some (most?) SPI controllers perform the transfer asynchronously and try to sleep. This is bad, and triggers a BUG(). So, work around this by using adding a hwbus hook for the cw1200 driver core to call. The cw1200_spi driver translates this into irq_disable()/irq_enable() calls instead, which can safely be called in interrupt context. Apparently the platforms I used to develop the cw1200_spi driver used synchronous spi_sync() implementations, which is why this didn't surface until now. Many thanks to Dave Sizeburns for the inital bug report and his services as a tester. Signed-off-by: Solomon Peachy <pizza@shaftnet.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds3-16/+5
Pull networking fixes from David Miller: "A quick set of fixes, some to deal with fallout from yesterday's net-next merge. 1) Fix compilation of bnx2x driver with CONFIG_BNX2X_SRIOV disabled, from Dmitry Kravkov. 2) Fix a bnx2x regression caused by one of Dave Jones's mistaken braces changes, from Eilon Greenstein. 3) Add some protective filtering in the netlink tap code, from Daniel Borkmann. 4) Fix TCP congestion window growth regression after timeouts, from Yuchung Cheng. 5) Correctly adjust TCP's rcv_ssthresh for out of order packets, from Eric Dumazet" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: tcp: properly increase rcv_ssthresh for ofo packets net: add documentation for BQL helpers mlx5: remove unused MLX5_DEBUG param in Kconfig bnx2x: Restore a call to config_init bnx2x: fix broken compilation with CONFIG_BNX2X_SRIOV is not set tcp: fix no cwnd growth after timeout net: netlink: filter particular protocols from analyzers
2013-09-06mlx5: remove unused MLX5_DEBUG param in KconfigMichael Opdenacker1-10/+0
This patch proposes to remove the MLX5_DEBUG kernel configuration parameter defined in drivers/net/ethernet/mellanox/mlx5/core/Kconfig, but used nowhere in the makefiles and source code. This could also be fixed by using this parameter, but this may be a leftover from driver development... Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-06bnx2x: Restore a call to config_initEilon Greenstein1-6/+3
Commit c0a77ec74f295013d7ba3204dd3ed25fccf83cb4 'bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize' identified indentation problem, but resolved it by adding braces instead of fixing the indentation. The braces now prevents a config_init call in some cases, though it should be called regardless of that condition. This patch removes the braces and fix the confusing indentation that caused this mess. Signed-off-by: Eilon Greenstein <eilong@broadcom.com> CC: Dave Jones <davej@redhat.com> Tested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-06bnx2x: fix broken compilation with CONFIG_BNX2X_SRIOV is not setDmitry Kravkov1-0/+2
Since commit 60cad4e67bd6ff400e7ea61fe762b3042b12ae9d "bnx2x: VF RSS support - VF side" fails to compile w/o CONFIG_BNX2X_SRIOV option. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Ariel Elior <ariele@broadcom.com> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-06Merge branch 'for-linus' of ↵Linus Torvalds10-12/+12
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree from Jiri Kosina: "The usual trivial updates all over the tree -- mostly typo fixes and documentation updates" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits) doc: Documentation/cputopology.txt fix typo treewide: Convert retrun typos to return Fix comment typo for init_cma_reserved_pageblock Documentation/trace: Correcting and extending tracepoint documentation mm/hotplug: fix a typo in Documentation/memory-hotplug.txt power: Documentation: Update s2ram link doc: fix a typo in Documentation/00-INDEX Documentation/printk-formats.txt: No casts needed for u64/s64 doc: Fix typo "is is" in Documentations treewide: Fix printks with 0x%# zram: doc fixes Documentation/kmemcheck: update kmemcheck documentation doc: documentation/hwspinlock.txt fix typo PM / Hibernate: add section for resume options doc: filesystems : Fix typo in Documentations/filesystems scsi/megaraid fixed several typos in comments ppc: init_32: Fix error typo "CONFIG_START_KERNEL" treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks page_isolation: Fix a comment typo in test_pages_isolated() doc: fix a typo about irq affinity ...
2013-09-06net: stmmac: fix bad merge conflict resolutionOlof Johansson1-0/+1
Merge commit 06c54055bebf did a bad conflict resolution accidentally leaving out a closing brace. Add it back. This breaks a handful of defconfigs on ARM, so it'd be good to see it applied pretty quickly. Signed-off-by: Olof Johansson <olof@lixom.net> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds527-18414/+42770
Pull networking changes from David Miller: "Noteworthy changes this time around: 1) Multicast rejoin support for team driver, from Jiri Pirko. 2) Centralize and simplify TCP RTT measurement handling in order to reduce the impact of bad RTO seeding from SYN/ACKs. Also, when both timestamps and local RTT measurements are available prefer the later because there are broken middleware devices which scramble the timestamp. From Yuchung Cheng. 3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel memory consumed to queue up unsend user data. From Eric Dumazet. 4) Add a "physical port ID" abstraction for network devices, from Jiri Pirko. 5) Add a "suppress" operation to influence fib_rules lookups, from Stefan Tomanek. 6) Add a networking development FAQ, from Paul Gortmaker. 7) Extend the information provided by tcp_probe and add ipv6 support, from Daniel Borkmann. 8) Use RCU locking more extensively in openvswitch data paths, from Pravin B Shelar. 9) Add SCTP support to openvswitch, from Joe Stringer. 10) Add EF10 chip support to SFC driver, from Ben Hutchings. 11) Add new SYNPROXY netfilter target, from Patrick McHardy. 12) Compute a rate approximation for sending in TCP sockets, and use this to more intelligently coalesce TSO frames. Furthermore, add a new packet scheduler which takes advantage of this estimate when available. From Eric Dumazet. 13) Allow AF_PACKET fanouts with random selection, from Daniel Borkmann. 14) Add ipv6 support to vxlan driver, from Cong Wang" Resolved conflicts as per discussion. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits) openvswitch: Fix alignment of struct sw_flow_key. netfilter: Fix build errors with xt_socket.c tcp: Add missing braces to do_tcp_setsockopt caif: Add missing braces to multiline if in cfctrl_linkup_request bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize vxlan: Fix kernel panic on device delete. net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls net: mvneta: properly disable HW PHY polling and ensure adjust_link() works icplus: Use netif_running to determine device state ethernet/arc/arc_emac: Fix huge delays in large file copies tuntap: orphan frags before trying to set tx timestamp tuntap: purge socket error queue on detach qlcnic: use standard NAPI weights ipv6:introduce function to find route for redirect bnx2x: VF RSS support - VF side bnx2x: VF RSS support - PF side vxlan: Notify drivers for listening UDP port changes net: usbnet: update addr_assign_type if appropriate driver/net: enic: update enic maintainers and driver driver/net: enic: Exposing symbols for Cisco's low latency driver ...
2013-09-06sfc: Minimal support for 40G link speedBen Hutchings2-1/+3
Accept and handle 40G link events. Accept ethtool link settings of speed == 40000 && duplex, and set the appropriate MCDI PHY capability. This does not include reporting of 40G media types, as those have not yet been assigned numbers in the MCDI protocol. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-09-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller22-205/+336
Conflicts: drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c net/bridge/br_multicast.c net/ipv6/sit.c The conflicts were minor: 1) sit.c changes overlap with change to ip_tunnel_xmit() signature. 2) br_multicast.c had an overlap between computing max_delay using msecs_to_jiffies and turning MLDV2_MRC() into an inline function with a name using lowercase instead of uppercase letters. 3) stmmac had two overlapping changes, one which conditionally allocated and hooked up a dma_cfg based upon the presence of the pbl OF property, and another one handling store-and-forward DMA made. The latter of which should not go into the new of_find_property() basic block. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05bnx2x: Add missing braces in bnx2x:bnx2x_link_initializeDave Jones1-1/+2
The indentation here implies that the intent was for this to be a multiline if. Introduced a few years ago in commit ec146a6f019923819f5ca381980248b6d154ca1a ("bnx2x: Modify XGXS functions") Signed-off-by: Dave Jones <davej@fedoraproject.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-05vxlan: Fix kernel panic on device delete.Pravin B Shelar1-1/+2
On vxlan device create if socket create fails vxlan device is not added to hash table. Therefore we need to check if device is in hashtable before we delete it from hlist. Following patch avoid the crash. net-next already has this fix. ---8<--- BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan] PGD 42b2d9067 PUD 42e04c067 PMD 0 Oops: 0002 [#1] SMP Modules linked in: vxlan(-) Hardware name: Dell Inc. PowerEdge R620/0KCKR5, BIOS 1.4.8 10/25/2012 task: ffff88042ecf8760 ti: ffff88042f106000 task.ti: ffff88042f106000 RIP: 0010:[<ffffffffa05f9ca7>] [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan] RSP: 0018:ffff88042f107e28 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88082af08000 RCX: ffff88083fd80000 RDX: 0000000000000000 RSI: ffff88042f107e58 RDI: ffff88042e12f810 RBP: ffff88042f107e48 R08: ffffffff8166eca0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88082af087c0 R13: ffff88042e12f000 R14: ffff88042f107e58 R15: ffff88042f107e58 FS: 00007f4ed2de7700(0000) GS:ffff88043fc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000042e076000 CR4: 00000000000407e0 Stack: ffff88082af08000 ffffffff81654848 ffffffffa05fb4e0 ffffffff81654780 ffff88042f107e98 ffffffff813b9c7a ffff88042f107e58 ffff88042f107e58 ffff88042f107e88 ffffffffa05fb4e0 ffffffffa05fb780 ffff88042f107f18 Call Trace: [<ffffffff813b9c7a>] __rtnl_link_unregister+0xca/0xd0 [<ffffffff813bb0e9>] rtnl_link_unregister+0x19/0x30 [<ffffffffa05faa4c>] vxlan_cleanup_module+0x10/0x2f [vxlan] [<ffffffff81099fef>] SyS_delete_module+0x1cf/0x2c0 [<ffffffff8146c069>] ? do_page_fault+0x9/0x10 [<ffffffff8146f012>] system_call_fastpath+0x16/0x1b Code: 4d 85 ed 0f 84 95 00 00 00 4c 8d a7 c0 07 00 00 49 8d bd 10 08 00 00 e8 28 e8 e6 e0 48 8b 83 c0 07 00 00 49 8b 54 24 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 49 b8 00 02 20 00 00 00 ad de 4d 89 RIP [<ffffffffa05f9ca7>] vxlan_dellink+0x77/0xf0 [vxlan] RSP <ffff88042f107e28> CR2: 0000000000000000 Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>