linux/drivers, branch v3.15

Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2014-06-07T22:01:39Z

Pull SCSI target fixes from Nicholas Bellinger: "Here are the remaining fixes for v3.15. This series includes: - iser-target fix for ImmediateData exception reference count bug (Sagi + nab) - iscsi-target fix for MC/S login + potential iser-target MRDSL buffer overrun (Santosh + Roland) - iser-target fix for v3.15-rc multi network portal shutdown regression (nab) - target fix for allowing READ_CAPCITY during ALUA Standby access state (Chris + nab) - target fix for NULL pointer dereference of alua_access_state for un-configured devices (Chris + nab)" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: Fix alua_access_state attribute OOPs for un-configured devices target: Allow READ_CAPACITY opcode in ALUA Standby access state iser-target: Fix multi network portal shutdown regression iscsi-target: Fix wrong buffer / buffer overrun in iscsi_change_param_value() iser-target: Add missing target_put_sess_cmd for ImmedateData failure

target: Fix alua_access_state attribute OOPs for un-configured devices

2014-06-06T08:22:41Z

This patch fixes a OOPs where an attempt to write to the per-device alua_access_state configfs attribute at: /sys/kernel/config/target/core/$HBA/$DEV/alua/$TG_PT_GP/alua_access_state results in an NULL pointer dereference when the backend device has not yet been configured. This patch adds an explicit check for DF_CONFIGURED, and fails with -ENODEV to avoid this case. Reported-by: Chris Boot Reported-by: Philip Gaw Cc: Chris Boot Cc: Philip Gaw Cc: stable@vger.kernel.org # 3.8+ Signed-off-by: Nicholas Bellinger

target: Allow READ_CAPACITY opcode in ALUA Standby access state

2014-06-06T08:21:12Z

This patch allows READ_CAPACITY + SAI_READ_CAPACITY_16 opcode processing to occur while the associated ALUA group is in Standby access state. This is required to avoid host side LUN probe failures during the initial scan if an ALUA group has already implicitly changed into Standby access state. This addresses a bug reported by Chris + Philip using dm-multipath + ESX hosts configured with ALUA multipath. Reported-by: Chris Boot Reported-by: Philip Gaw Cc: Chris Boot Cc: Philip Gaw Cc: Hannes Reinecke Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger

Merge tag 'pm-3.15-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2014-06-04T14:48:54Z

Pull intel pstate fixes from Rafael Wysocki: "Final power management fixes for 3.15 - Taking non-idle time into account when calculating core busy time was a mistake and led to a performance regression. Since the problem it was supposed to address is now taken care of in a different way, we don't need to do it any more, so drop the non-idle time tracking from intel_pstate. Dirk Brandewie. - Changing to fixed point math throughout the busy calculation introduced rounding errors that adversely affect the accuracy of intel_pstate's computations. Fix from Dirk Brandewie. - The PID controller algorithm used by intel_pstate assumes that the time interval between two adjacent samples will always be the same which is not the case for deferable timers (used by intel_pstate) when the system is idle. This leads to inaccurate predictions and artificially increases convergence times for the minimum P-state. Fix from Dirk Brandewie. - intel_pstate carries out computations using 32-bit variables that may overflow for large enough values of APERF/MPERF. Switch to using 64-bit variables for computations, from Doug Smythies" * tag 'pm-3.15-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: intel_pstate: Improve initial busy calculation intel_pstate: add sample time scaling intel_pstate: Correct rounding in busy calculation intel_pstate: Remove C0 tracking

Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

2014-06-04T14:48:01Z

Pull drm fixes from Dave Airlie: "All fairly small: radeon stability and a panic path fix. Mostly radeon fixes, suspend/resume fix, stability on the CIK chipsets, along with a locking check avoidance patch for panic times regression" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon: use the CP DMA on CIK drm/radeon: sync page table updates drm/radeon: fix vm buffer size estimation drm/crtc-helper: skip locking checks in panicking path drm/radeon/dpm: resume fixes for some systems

iser-target: Fix multi network portal shutdown regression

2014-06-04T02:17:32Z

This patch fixes a iser-target specific regression introduced in v3.15-rc6 with: commit 14f4b54fe38f3a8f8392a50b951c8aa43b63687a Author: Sagi Grimberg Date: Tue Apr 29 13:13:47 2014 +0300 Target/iscsi,iser: Avoid accepting transport connections during stop stage where the change to set iscsi_np->enabled = false within iscsit_clear_tpg_np_login_thread() meant that a iscsi_np with two iscsi_tpg_np exports would have it's parent iscsi_np set to a disabled state, even if other iscsi_tpg_np exports still existed. This patch changes iscsit_clear_tpg_np_login_thread() to only set iscsi_np->enabled = false when shutdown = true, and also changes iscsit_del_np() to set iscsi_np->enabled = true when iscsi_np->np_exports is non zero. Cc: Sagi Grimberg Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger

iscsi-target: Fix wrong buffer / buffer overrun in iscsi_change_param_value()

2014-06-04T02:17:31Z

In non-leading connection login, iscsi_login_non_zero_tsih_s1() calls iscsi_change_param_value() with the buffer it uses to hold the login PDU, not a temporary buffer. This leads to the login header getting corrupted and login failing for non-leading connections in MC/S. Fix this by adding a wrapper iscsi_change_param_sprintf() that handles the temporary buffer itself to avoid confusion. Also handle sending a reject in case of failure in the wrapper, which lets the calling code get quite a bit smaller and easier to read. Finally, bump the size of the temporary buffer from 32 to 64 bytes to be safe, since "MaxRecvDataSegmentLength=" by itself is 25 bytes; with a trailing NUL, a value >= 1M will lead to a buffer overrun. (This isn't the default but we don't need to run right at the ragged edge here) Reported-by: Santosh Kulkarni Signed-off-by: Roland Dreier Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger

iser-target: Add missing target_put_sess_cmd for ImmedateData failure

2014-06-04T02:17:31Z

This patch addresses a bug where an early exception for SCSI WRITE with ImmediateData=Yes was missing the target_put_sess_cmd() call to drop the extra se_cmd->cmd_kref reference obtained during the normal iscsit_setup_scsi_cmd() codepath execution. This bug was manifesting itself during session shutdown within isert_cq_rx_comp_err() where target_wait_for_sess_cmds() would end up waiting indefinately for the last se_cmd->cmd_kref put to occur for the failed SCSI WRITE + ImmediateData descriptors. This fix follows what traditional iscsi-target code already does for the same failure case within iscsit_get_immediate_data(). Reported-by: Sagi Grimberg Cc: Sagi Grimberg Cc: Or Gerlitz Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2014-06-03T01:16:41Z

Pull networking fixes from David Miller: 1) Unbreak zebra and other netlink apps, from Eric W Biederman. 2) Some new qmi_wwan device IDs, from Aleksander Morgado. 3) Fix info leak in DCB netlink handler of qlcnic driver, from Dan Carpenter. 4) inet_getid() and ipv6_select_ident() do not generate monotonically increasing ID numbers, fix from Eric Dumazet. 5) Fix memory leak in __sk_prepare_filter(), from Leon Yu. 6) Netlink leftover bytes warning message is user triggerable, rate limit it. From Michal Schmidt. 7) Fix non-linear SKB panic in ipvs, from Peter Christensen. 8) Congestion window undo needs to be performed even if only never retransmitted data is SACK'd, fix from Yuching Cheng. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (24 commits) net: filter: fix possible memory leak in __sk_prepare_filter() net: ec_bhf: Add runtime dependencies tcp: fix cwnd undo on DSACK in F-RTO netlink: Only check file credentials for implicit destinations ipheth: Add support for iPad 2 and iPad 3 team: fix mtu setting net: fix inet_getid() and ipv6_select_ident() bugs net: qmi_wwan: interface #11 in Sierra Wireless MC73xx is not QMI net: qmi_wwan: add additional Sierra Wireless QMI devices bridge: Prevent insertion of FDB entry with disallowed vlan netlink: rate-limit leftover bytes warning and print process name bridge: notify user space after fdb update net: qmi_wwan: add Netgear AirCard 341U net: fix wrong mac_len calculation for vlans batman-adv: fix NULL pointer dereferences net/mlx4_core: Reset RoCE VF gids when guest driver goes down emac: aggregation of v1-2 PLB errors for IER register emac: add missing support of 10mbit in emac/rgmii can: only rename enabled led triggers when changing the netdev name ipvs: Fix panic due to non-linear skb ...

Merge tag 'md/3.15-fixes' of git://neil.brown.name/md

2014-06-03T00:04:37Z

Pull two md bugfixes from Neil Brown: "Two md bugfixes for possible corruption when restarting reshape If a raid5/6 reshape is restarted (After stopping and re-assembling the array) and the array is marked read-only (or read-auto), then the reshape will appear to complete immediately, without actually moving anything around. This can result in corruption. There are two patches which do much the same thing in different places. They are separate because one is an older bug and so can be applied to more -stable kernels" * tag 'md/3.15-fixes' of git://neil.brown.name/md: md: always set MD_RECOVERY_INTR when interrupting a reshape thread. md: always set MD_RECOVERY_INTR when aborting a reshape or other "resync".