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2014-02-12iser-target: Fix leak on failure in isert_conn_create_fastreg_poolNicholas Bellinger
This patch fixes a memory leak for fr_desc upon failure of isert_create_fr_desc() in isert_conn_create_fastreg_pool() code. As reported by Coverity 1166659: *** CID 1166659: Resource leak (RESOURCE_LEAK) /drivers/infiniband/ulp/isert/ib_isert.c: 470 in isert_conn_create_fastreg_pool() 464 isert_conn, isert_conn->conn_fr_pool_size); 465 466 return 0; 467 468 err: 469 isert_conn_free_fastreg_pool(isert_conn); >>> CID 1166659: Resource leak (RESOURCE_LEAK) >>> Variable "fr_desc" going out of scope leaks the storage it points to. 470 return ret; 471 } 472 473 static int 474 isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) 475 { Cc: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-02-12iscsi-target: Fix SNACK Type 1 + BegRun=0 handlingNicholas Bellinger
This patch fixes Status SNACK handling of BegRun=0 to allow for all unacknowledged respones to be resent, instead of always assuming that BegRun would be an explicit value less than the current ExpStatSN. Reported-by: santosh kulkarni <santosh.kulkarni@calsoftinc.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-02-12target: Fix missing length check in spc_emulate_evpd_83()Roland Dreier
Commit fbfe858fea2a ("target_core_spc: Include target device descriptor in VPD page 83") added a new length variable, but (due to a cut and paste mistake?) just checks scsi_name_len against 256 twice. Fix this to check scsi_target_len for overflow too. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-02-12qla2xxx: Remove last vestiges of qla_tgt_cmd.cmd_listRoland Dreier
The only place this struct member is touched is in one INIT_LIST_HEAD. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-02-12target: Fix 32-bit + CONFIG_LBDAF=n link error w/ sector_divNicholas Bellinger
This patch changes core_alua_state_lba_dependent() to use do_div() instead sector_div() to avoid the following link error on 32-bit with CONFIG_LBDAF=n as reported by Jim: buildlog-1391099072.txt-drivers/built-in.o: In function `target_alua_state_check': buildlog-1391099072.txt-(.text+0x928d93): undefined reference to `__umoddi3' buildlog-1391099072.txt:make: *** [vmlinux] Error 1 -- buildlog-1391101753.txt- CC init/version.o buildlog-1391101753.txt- LD init/built-in.o buildlog-1391101753.txt-drivers/built-in.o: In function `core_alua_state_lba_dependent': buildlog-1391101753.txt-/home/jim/linux/drivers/target/target_core_alua.c:503: undefined reference to `__umoddi3' buildlog-1391101753.txt:make: *** [vmlinux] Error 1 Reported-by: Jim Davis <jim.epost@gmail.com> Cc: Hannes Reinecke <hare@suse.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-02-12target: Fix free-after-use regression in PR unregisterNicholas Bellinger
This patch addresses a >= v3.11 free-after-use regression in core_scsi3_emulate_pro_register() that was introduced in the following commit: commit bc118fe4c4a8cfa453491ba77c0a146a6d0e73e0 Author: Andy Grover <agrover@redhat.com> Date: Thu May 16 10:41:04 2013 -0700 target: Further refactoring of core_scsi3_emulate_pro_register() To avoid the free-after-use, save an type value before hand, and only call core_scsi3_put_pr_reg() with a valid *pr_reg. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Andy Grover <agrover@redhat.com> Cc: <stable@vger.kernel.org> #3.11+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-02-12Merge branch 'sfc'David S. Miller
Shradha Shah says: ==================== Cleanup patches for the SFC driver This patch set consists of some cleanup and housekeeping patches for the sfc driver. These patches help to reduce the differences between the in- tree and out-of-tree driver. Ben Hutchings (12): sfc: Cache skb->data in local variable in efx_ptp_rx() sfc: Rewrite adjustment of PPS event in a clearer way sfc: Replace TSOH_OFFSET with the equivalent NET_IP_ALIGN sfc: Rename 'use_options' variable in tso_start() to clearer 'use_opt_desc' sfc: Remove unused definitions of EF10 user-mode DMA descriptors sfc: Correct comment about number of TX queues used on EF10 sfc: Preserve rx_frm_trunc counters when resizing DMA rings sfc: Use canonical pointer type for MAC address in efx_set_mac_address() sfc: Update product naming sfc: Cosmetic changes to self-test from the out-of-tree driver sfc: Fail self-test with -EBUSY, not -EIO, if the device is busy sfc: Add/remove blank lines to taste Laurence Evans (1): sfc: Removed adhoc scheme to rate limit PTP event queue overflow message ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Add/remove blank lines to tasteBen Hutchings
Remove trailing blank lines in several files. Use only one blank line between functions. Add a blank line as a separator in a few places. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Fail self-test with -EBUSY, not -EIO, if the device is busyBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Cosmetic changes to self-test from the out-of-tree driverBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Update product namingBen Hutchings
We don't use 'Solarstorm' or 'Solarflare Communications' in full any more. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Use canonical pointer type for MAC address in efx_set_mac_address()Ben Hutchings
Functions such as is_valid_ether_addr() expect u8 *, so use that instead of char *. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Rename 'use_options' variable in tso_start() to clearer 'use_opt_desc'Ben Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Preserve rx_frm_trunc counters when resizing DMA ringsBen Hutchings
We allocate efx_channel structures with kzalloc() so we don't need to zero-initialise individual fields in efx_probe_channel(). Further, this function will be called again during DMA ring resizing and we should not reset any statistics then. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Correct comment about number of TX queues used on EF10Ben Hutchings
EF10 implements option descriptors to switch TX checksum offload on and off between packets. We could therefore use a single hardware TX queue per kernel TX queue, although we don't yet. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Remove unused definitions of EF10 user-mode DMA descriptorsBen Hutchings
These DMA descriptor types will only be used by the userland networking stack. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Replace TSOH_OFFSET with the equivalent NET_IP_ALIGNBen Hutchings
If CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is defined then NET_IP_ALIGN will be defined as 0, so this macro is redundant. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Rewrite adjustment of PPS event in a clearer wayBen Hutchings
There is substantial latency in generation and handling of PPS events from the NIC, which we have to correct for before passing a host timestamp to the PPS subsystem. We compare clocks with the MC, giving us two offsets to subtract from the timestamp generated by pps_get_ts(): (a) Time from the last good sync (where we got host and NIC timestamps for nearly the same instant) to the time we called pps_get_ts() (b) Time from NIC top of second to the last good sync We currently calculate (a) + (b) in a quite confusing way. Instead, calculate (a) completely, then add (b) to it. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Cache skb->data in local variable in efx_ptp_rx()Ben Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12sfc: Removed adhoc scheme to rate limit PTP event queue overflow messageLaurence Evans
Use conventional net_ratelimit() instead. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12Merge branch 'ethtool_docs'David S. Miller
Ben Hutchings says: ==================== ethtool: Improve documentation This series converts most comments in <linux/ethtool.h> into kernel-doc format, and expands them to describe the semantics as well as I understand them. It also fixes some kernel-doc formatting errors. I started on this at Solarflare, but they graciously allowed me to take it away and finish it off. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Fix unwanted section breaks in kernel-docBen Hutchings
A colon almost unavoidably starts a new section. The script should be changed to provide a way to avoid this, but for now reword the comments to avoid using colons. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Move kernel-doc comment next to struct ethtool_dump definitionBen Hutchings
The kernel-doc script does not tolerate the macro definition in between. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Document the general convention for VLAs in kernel spaceBen Hutchings
Various ethtool command structures are declared with zero-length array at the end which are intended to be variable-length in userland (relying on lack of compiler bounds checking). However, in the kernel the structure and array are always allocated and passed to driver operations separately. Make that explicit. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_perm_addrBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_statsBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_testBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of string set typesBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Update documentation of struct ethtool_pauseparamBen Hutchings
Convert the inline comments to kernel-doc format. Explicitly specify that non-zero autoneg is an error if link autonegotiation is disabled. Specify that pause capabilities should be advertised dependent on link autonegotiation, not the autoneg flag here. There is no way to opt-out of pause frame autonegotiation, and this improves behaviour when the link partner is configured to follow pause frame autonegotiation and our interface is not. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_ringparamBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_eepromBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_regsBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_wolBen Hutchings
Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_drvinfoBen Hutchings
Replace the inline comments (and some others below) with a full explanation of the semantics, in kernel-doc format. Specify which strings may be empty. Document the relationship with other commands. Replace the 'deprecation' of some fields with a proper explanation of the conversion to generalised string sets, as userland programs may not be able to assume that ETHTOOL_GSSET_INFO is available. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12ethtool: Expand documentation of struct ethtool_cmdBen Hutchings
struct ethtool_cmd has very limited documentation; it contains several obscure or obsolete fields and several with non-obvious interpretation. Replace the inline comments (and some others below) with a full explanation of the semantics as well as I understand them, in kernel-doc format. Formally deprecate some fields that seem to be of historical use only. Extend the comment about 32/64-bit compatibility to cover all ethtool structures. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-02-12mwifiex: add key material v2 supportAvinash Patil
This patch adds key material V2 support to mwifiex. Newer FW supports this feature and FW KEY API version is used to determine which command structure needs to be used. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: parse API version from FWAvinash Patil
This patch adds support to parse FW API version TLVs. Currently only API version for key_material is supported. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: disable all TDLS link during disconnectionAvinash Patil
During deauthenticate/link lost event, disable all TDLS links as TDLS would not work when infra connection is not active. Also this will avoid an issue where ping to peer station doesn't work after reassociation to AP where we had created TDLS link in earlier association. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: separate BA params for TDLS link if 11ac is supportedAvinash Patil
If TDLS link is 11ac enabled i.e. we as well as peer station supports VHT, configure seprate TX & RX window sizes during BA setup. So even if BSS does not support 11ac, we can use VHT capabilities and higher window sizes on direct link. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: add VHT support for TDLSAvinash Patil
During TDLS setup request/response, if HW is 11ac capable, we add VHT Capability IEs in outgoing data frame. Also while processing received setup request/response, we preserve peer's 11ac capability retrieved from IEs. Patch also gets VHT parameters from config_station handlers and sets it to FW using TDLS config command. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: pass ieee80211_vht_cap to mwifiex_fill_vht_cap_tlvAvinash Patil
This patch changes mwifiex_fill_vht_cap_tlv function to pass struct ieee80211_vht_cap instead of mwifiex_ie_types_vhtcap so that it can be used generically. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: AMPDU support for TDLS linkAvinash Patil
This patch adds AMPDU support for TDLS link. We have set 11n capabilities including AMPDU parameters during ENABLE_LINK. We set a variable in RA list to indicate this as TDLS link. This patch uses these capabilities to know if AMPDU is allowed on TDLS link and enables AMPDU aggregation for TX and RX reording support for RA list for this peer. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: tdls related handling for data packets addressed to TDLS peerAvinash Patil
1. If data packet is addressed to TDLS peer for which link is established, mark these packets with TDLS flag so that FW can send them on direct link instead of sending via AP. 2. If data packet is addressed to TDLS peer and TDLS setup is underway, move these packets to TDLS queue. 3. If this packet is TDLS setup packet, do not block it. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: provision for holding and restoring packets during TDLS setupAvinash Patil
While TDLS link is being setup, few packets from this station to peer station may be buffered at AP. It may happen that once TDLS link is setup, packets sent from station to peer on direct link get delivered before traffic from AP arrives at peer station. This results into packet reordering issue at peer station. To avoid this, we hold data packets destined to TDLS peer during TDLS setup. These packets are moved to temperory TDLS TX queue. Upon successful TDLS setup, they are moved to RA list created for this peer. Upon failure, packets are moved back to AP's RA list for that particular TID. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: add cfg80211 change_station handler supportAvinash Patil
This patch adds cfg80211 change_station handler support for mwifiex which is needed for TDLS link setup. Driver creates a command to modify peer link capabilities and issues command to FW. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: add cfg80211 add_station handler supportAvinash Patil
This patch adds cfg80211 add_station handler support for mwifiex which is needed for TDLS setup. Driver issues create TDLS link command to FW upon receiving add_station from cfg80211. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: add cfg80211 tdls_oper handler supportAvinash Patil
This patch adds cfg80211 handler tdls_oper handler support to mwifiex. Upon enable link, driver sets status as TDLS status as setup complete and also sets AMSDU size, AMPDU params for direct link. Upon disable link, driver issues command to FW to delete this link in FW. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: parse TDLS action frames during RXAvinash Patil
This patch adds support for parsing TDLS action frames during station receive handler. Peer station capabilities are stored into station node. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: add tdls_mgmt handler supportAvinash Patil
This patch adds support for TDLS management frames transmit handler. mwifiex driver supports TDLS with external support, i.e. expects user space application to form TDLS frames. Same is advertised to cfg80211 during registration. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-02-12mwifiex: cleanup in mwifiex_fill_cap_info()Amitkumar Karwar
Pass 'struct ieee80211_ht_cap' pointer to mwifiex_fill_cap_info() instead of 'struct mwifiex_ie_types_htcap' pointer, because the routine internally uses the later one. This patch also adds WARN_ON_ONCE check for NULL band. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>