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2011-07-20bcma: move define of BCMA_CLKCTLST registerRafał Miłecki2-9/+20
Recent experiments have shown many cores share 0x1E0 register used for clock management. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-20cfg80211: allow userspace to control supported rates in scanJohannes Berg1-0/+7
Some P2P scans are not allowed to advertise 11b rates, but that is a rather special case so instead of having that, allow userspace to request the rate sets (per band) that are advertised in scan probe request frames. Since it's needed in two places now, factor out some common code parsing a rate array. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-20bcma: define IO status registerRafał Miłecki1-1/+7
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-20ieee80211: add few wmm tspec valuesKalle Valo1-0/+37
These are needed by ath6kl for parsing tspec status from an IE. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-20bcma: handle alternative SPROM locationRafał Miłecki1-1/+2
Some cards do not use additional 0x30 offset for SPROM location. We do not know the real condition for it yet, make it BCM4331 specific for now. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-19netfilter: nfnetlink_queue: batch verdict supportFlorian Westphal1-0/+1
Introduces a new nfnetlink type that applies a given verdict to all queued packets with an id <= the id in the verdict message. If a mark is provided it is applied to all matched packets. This reduces the number of verdicts that have to be sent. Applications that make use of this feature need to maintain a timeout to send a batchverdict periodically to avoid starvation. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-07-19IB/mlx4: Use flow counters on IBoE portsOr Gerlitz1-1/+2
Allocate flow counter per Ethernet/IBoE port, and attach this counter to all the QPs created on that port. Based on patch by Eli Cohen <eli@mellanox.co.il>. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-19mlx4_core: Add network flow countersOr Gerlitz2-1/+20
ConnectX devices support a set of flow counters that can be attached to a set containing one or more QPs. Each such counter tracks receive and transmit packets and bytes of these QPs. This patch queries the device to check support for counters, handles initialization of the HCA to enable counters, and initializes a bitmap allocator to control counter allocations. Derived from patch by Eli Cohen <eli@mellanox.co.il>. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-19mlx4_core: Fix location of counter index in QP context structOr Gerlitz1-3/+2
Fix the address handle portion of the QP context structure to have the correct bit location for the counter index field. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-19mlx4_core: Read extended capabilities into the flags fieldOr Gerlitz1-6/+6
Query another dword containing up to 32 extended device capabilities and merge it into struct mlx4_caps.flags. Update the code that handles the current extended device capabilities (e.g UDP RSS, WoL, vep steering, etc) to use the extended device cap flags field instead of a field per extended capability. Initial patch done by Eli Cohen <eli@mellanox.co.il>. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-19mlx4_core: Extend capability flags to 64 bitsOr Gerlitz1-17/+17
The latest firmware adds a second dword containing more device flags, so extend the device capabilities flags field from 32 to 64 bits. Derived from patch by Eli Cohen <eli@mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-19dt: include linux/errno.h in linux/of_address.hGrant Likely1-0/+1
of_address.h makes reference to some of the error code #defines, so it needs to include errno.h. If CONFIG_PCI is not selected, then some files will fail to compile. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-19of/address: Add of_find_matching_node_by_address helperGrant Likely1-0/+4
of_find_matching_node_by_address() can be used to find a device tree node for a device at a specific address. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-18connector: add an event for monitoring process tracersVladimir Zapolskiy1-0/+13
This change adds a procfs connector event, which is emitted on every successful process tracer attach or detach. If some process connects to other one, kernelspace connector reports process id and thread group id of both these involved processes. On disconnection null process id is returned. Such an event allows to create a simple automated userspace mechanism to be aware about processes connecting to others, therefore predefined process policies can be applied to them if needed. Note, a detach signal is emitted only in case, if a tracer process explicitly executes PTRACE_DETACH request. In other cases like tracee or tracer exit detach event from proc connector is not reported. Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Oleg Nesterov <oleg@redhat.com>
2011-07-18ssb: SPROM: add LED duty cycle fieldsRafał Miłecki1-0/+2
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-18include/linux/sdla.h: remove the prototype of sdla()WANG Cong1-5/+1
`make headers_check` complains that linux-2.6/usr/include/linux/sdla.h:116: userspace cannot reference function or variable defined in the kernel this is due to that there is no such a kernel function, void sdla(void *cfg_info, char *dev, struct frad_conf *conf, int quiet); I don't know why we have it in a kernel header, so remove it. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18stmmac: Allow SOCs to use Store forward mode eventhough tx_coe is 0. (V2)Srinivas Kandagatla1-0/+1
This patch adds new field 'force_sf_dma_mode' to plat_stmmacenet_data struct to allow users to specify if they want to use force store forward eventhough tx_coe is not available in hw. without this flag stmmac driver will use cut-thru mode not use store-forward mode. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-18evm: add evm_inode_setattr to prevent updating an invalid security.evmMimi Zohar1-0/+6
Permit changing of security.evm only when valid, unless in fixmode. Reported-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-07-18evm: additional parameter to pass integrity cache entry 'iint'Dmitry Kasatkin1-2/+6
Additional iint parameter allows to skip lookup in the cache. Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
2011-07-18evm: add evm_inode_init_security to initialize new filesMimi Zohar1-0/+11
Initialize 'security.evm' for new files. Changelog v7: - renamed evm_inode_post_init_security to evm_inode_init_security - moved struct xattr definition to earlier patch - allocate xattr name Changelog v6: - Use 'struct evm_ima_xattr_data' Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-07-18evm: imbed evm_inode_post_setattrMimi Zohar1-0/+6
Changing the inode's metadata may require the 'security.evm' extended attribute to be re-calculated and updated. Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2011-07-18evm: evm_inode_post_removexattrMimi Zohar1-0/+9
When an EVM protected extended attribute is removed, update 'security.evm'. Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2011-07-18security: imbed evm calls in security hooksMimi Zohar1-0/+56
Imbed the evm calls evm_inode_setxattr(), evm_inode_post_setxattr(), evm_inode_removexattr() in the security hooks. evm_inode_setxattr() protects security.evm xattr. evm_inode_post_setxattr() and evm_inode_removexattr() updates the hmac associated with an inode. (Assumes an LSM module protects the setting/removing of xattr.) Changelog: - Don't define evm_verifyxattr(), unless CONFIG_INTEGRITY is enabled. - xattr_name is a 'const', value is 'void *' Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2011-07-18evm: add support for different security.evm data typesDmitry Kasatkin1-0/+1
EVM protects a file's security extended attributes(xattrs) against integrity attacks. The current patchset maintains an HMAC-sha1 value across the security xattrs, storing the value as the extended attribute 'security.evm'. We anticipate other methods for protecting the security extended attributes. This patch reserves the first byte of 'security.evm' as a place holder for the type of method. Changelog v6: - move evm_ima_xattr_type definition to security/integrity/integrity.h - defined a structure for the EVM xattr called evm_ima_xattr_data (based on Serge Hallyn's suggestion) - removed unnecessary memset Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com> Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
2011-07-18evm: re-releaseMimi Zohar2-0/+10
EVM protects a file's security extended attributes(xattrs) against integrity attacks. This patchset provides the framework and an initial method. The initial method maintains an HMAC-sha1 value across the security extended attributes, storing the HMAC value as the extended attribute 'security.evm'. Other methods of validating the integrity of a file's metadata will be posted separately (eg. EVM-digital-signatures). While this patchset does authenticate the security xattrs, and cryptographically binds them to the inode, coming extensions will bind other directory and inode metadata for more complete protection. To help simplify the review and upstreaming process, each extension will be posted separately (eg. IMA-appraisal, IMA-appraisal-directory). For a general overview of the proposed Linux integrity subsystem, refer to Dave Safford's whitepaper: http://downloads.sf.net/project/linux-ima/linux-ima/Integrity_overview.pdf. EVM depends on the Kernel Key Retention System to provide it with a trusted/encrypted key for the HMAC-sha1 operation. The key is loaded onto the root's keyring using keyctl. Until EVM receives notification that the key has been successfully loaded onto the keyring (echo 1 > <securityfs>/evm), EVM can not create or validate the 'security.evm' xattr, but returns INTEGRITY_UNKNOWN. Loading the key and signaling EVM should be done as early as possible. Normally this is done in the initramfs, which has already been measured as part of the trusted boot. For more information on creating and loading existing trusted/encrypted keys, refer to Documentation/keys-trusted-encrypted.txt. A sample dracut patch, which loads the trusted/encrypted key and enables EVM, is available from http://linux-ima.sourceforge.net/#EVM. Based on the LSMs enabled, the set of EVM protected security xattrs is defined at compile. EVM adds the following three calls to the existing security hooks: evm_inode_setxattr(), evm_inode_post_setxattr(), and evm_inode_removexattr. To initialize and update the 'security.evm' extended attribute, EVM defines three calls: evm_inode_post_init(), evm_inode_post_setattr() and evm_inode_post_removexattr() hooks. To verify the integrity of a security xattr, EVM exports evm_verifyxattr(). Changelog v7: - Fixed URL in EVM ABI documentation Changelog v6: (based on Serge Hallyn's review) - fix URL in patch description - remove evm_hmac_size definition - use SHA1_DIGEST_SIZE (removed both MAX_DIGEST_SIZE and evm_hmac_size) - moved linux include before other includes - test for crypto_hash_setkey failure - fail earlier for invalid key - clear entire encrypted key, even on failure - check xattr name length before comparing xattr names Changelog: - locking based on i_mutex, remove evm_mutex - using trusted/encrypted keys for storing the EVM key used in the HMAC-sha1 operation. - replaced crypto hash with shash (Dmitry Kasatkin) - support for additional methods of verifying the security xattrs (Dmitry Kasatkin) - iint not allocated for all regular files, but only for those appraised - Use cap_sys_admin in lieu of cap_mac_admin - Use __vfs_setxattr_noperm(), without permission checks, from EVM Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
2011-07-18xattr: define vfs_getxattr_alloc and vfs_xattr_cmpMimi Zohar1-1/+4
vfs_getxattr_alloc() and vfs_xattr_cmp() are two new kernel xattr helper functions. vfs_getxattr_alloc() first allocates memory for the requested xattr and then retrieves it. vfs_xattr_cmp() compares a given value with the contents of an extended attribute. Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2011-07-18integrity: move ima inode integrity data managementMimi Zohar2-13/+30
Move the inode integrity data(iint) management up to the integrity directory in order to share the iint among the different integrity models. Changelog: - don't define MAX_DIGEST_SIZE - rename several globally visible 'ima_' prefixed functions, structs, locks, etc to 'integrity_' - replace '20' with SHA1_DIGEST_SIZE - reflect location change in appropriate Kconfig and Makefiles - remove unnecessary initialization of iint_initialized to 0 - rebased on current ima_iint.c - define integrity_iint_store/lock as static There should be no other functional changes. Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2011-07-18security: new security_inode_init_security API adds function callbackMimi Zohar2-5/+18
This patch changes the security_inode_init_security API by adding a filesystem specific callback to write security extended attributes. This change is in preparation for supporting the initialization of multiple LSM xattrs and the EVM xattr. Initially the callback function walks an array of xattrs, writing each xattr separately, but could be optimized to write multiple xattrs at once. For existing security_inode_init_security() calls, which have not yet been converted to use the new callback function, such as those in reiserfs and ocfs2, this patch defines security_old_inode_init_security(). Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2011-07-18netfilter: nfnetlink: add RCU in nfnetlink_rcv_msg()Eric Dumazet1-0/+3
Goal of this patch is to permit nfnetlink providers not mandate nfnl_mutex being held while nfnetlink_rcv_msg() calls them. If struct nfnl_callback contains a non NULL call_rcu(), then nfnetlink_rcv_msg() will use it instead of call() field, holding rcu_read_lock instead of nfnl_mutex Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Florian Westphal <fw@strlen.de> CC: Eric Leblond <eric@regit.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-07-18nfsd: turn on reply cache for NFSv4J. Bruce Fields1-0/+1
It's sort of ridiculous that we've never had a working reply cache for NFSv4. On the other hand, we may still not: our current reply cache is likely not very good, especially in the TCP case (which is the only case that matters for v4). What we really need here is some serious testing. Anyway, here's a start. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-07-18Avoid duplicate _count variables in page_structChristoph Lameter1-18/+19
Restructure the union / struct cascade in struct page so that we only have one definition of _count. Tested-by: Hugh Dickins <hughd@google.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
2011-07-18Revert "SLUB: Fix build breakage in linux/mm_types.h"Pekka Enberg1-10/+15
This reverts commit ea6bd8ee1a2ccdffc38b2b1fcfe941addfafaade.
2011-07-18SUNRPC: Replace xprt->resend and xprt->sending with a priority queueTrond Myklebust1-1/+0
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-18SUNRPC: Allow caller of rpc_sleep_on() to select priority levelsTrond Myklebust1-0/+4
Currently, the caller has to change the value of task->tk_priority if it wants to select on which priority level the task will sleep. This patch allows the caller to select a priority level at sleep time rather than always using task->tk_priority. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-18SUNRPC: Support dynamic slot allocation for TCP connectionsTrond Myklebust1-2/+7
Allow the number of available slots to grow with the TCP window size. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-18SUNRPC: Clean up the slot table allocationTrond Myklebust1-2/+0
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-18SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slotTrond Myklebust1-3/+3
This throttles the allocation of new slots when the socket is busy reconnecting and/or is out of buffer space. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2011-07-17Merge branches 'omap/prcm' and 'omap/mfd' of ↵Arnd Bergmann4-14/+282
git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into next/devel-2
2011-07-17net: vlan, qlcnic: make vlan_find_dev privateDavid Lamparter1-11/+0
there is only one user of vlan_find_dev outside of the actual vlan code: qlcnic uses it to iterate over some VLANs it knows. let's just make vlan_find_dev private to the VLAN code and have the iteration in qlcnic be a bit more direct. (a few rcu dereferences less too) Signed-off-by: David Lamparter <equinox@diac24.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Amit Kumar Salecha <amit.salecha@qlogic.com> Cc: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Cc: linux-driver@qlogic.com Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-17net: add 802.1ad / 802.1ah / QinQ ethertypesDavid Lamparter1-0/+5
define ETH_P_8021AD to 88a8 (assigned by IEEE) and add ETH_P_QINQ{1,2,3} for the pre-standard 9{1,2,3}00 types. all of them use 802.1q frame format, with 1 bit used differently in some cases. also define ETH_P_8021AH to 88e7 (assigned by IEEE). this is Mac-in-Mac and uses a different, 16-byte header. Signed-off-by: David Lamparter <equinox@diac24.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-17ptrace: dont send SIGSTOP on auto-attach if PT_SEIZEDOleg Nesterov1-1/+5
The fake SIGSTOP during attach has numerous problems. PTRACE_SEIZE is already fine, but we have basically the same problems is SIGSTOP is sent on auto-attach, the tracer can't know if this signal signal should be cancelled or not. Change ptrace_event() to set JOBCTL_TRAP_STOP if the new child is PT_SEIZED, this triggers the PTRACE_EVENT_STOP report. Thereafter a PT_SEIZED task can never report the bogus SIGSTOP. Test-case: #define PTRACE_SEIZE 0x4206 #define PTRACE_SEIZE_DEVEL 0x80000000 #define PTRACE_EVENT_STOP 7 #define WEVENT(s) ((s & 0xFF0000) >> 16) int main(void) { int child, grand_child, status; long message; child = fork(); if (!child) { kill(getpid(), SIGSTOP); fork(); assert(0); return 0x23; } assert(ptrace(PTRACE_SEIZE, child, 0,PTRACE_SEIZE_DEVEL) == 0); assert(wait(&status) == child); assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGSTOP); assert(ptrace(PTRACE_SETOPTIONS, child, 0, PTRACE_O_TRACEFORK) == 0); assert(ptrace(PTRACE_CONT, child, 0,0) == 0); assert(waitpid(child, &status, 0) == child); assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGTRAP); assert(WEVENT(status) == PTRACE_EVENT_FORK); assert(ptrace(PTRACE_GETEVENTMSG, child, 0, &message) == 0); grand_child = message; assert(waitpid(grand_child, &status, 0) == grand_child); assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGTRAP); assert(WEVENT(status) == PTRACE_EVENT_STOP); kill(child, SIGKILL); kill(grand_child, SIGKILL); return 0; } Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Tejun Heo <tj@kernel.org>
2011-07-17ptrace: mv send-SIGSTOP from do_fork() to ptrace_init_task()Oleg Nesterov1-0/+3
If the new child is traced, do_fork() adds the pending SIGSTOP. It assumes that either it is traced because of auto-attach or the tracer attached later, in both cases sigaddset/set_thread_flag is correct even if SIGSTOP is already pending. Now that we have PTRACE_SEIZE this is no longer right in the latter case. If the tracer does PTRACE_SEIZE after copy_process() makes the child visible the queued SIGSTOP is wrong. We could check PT_SEIZED bit and change ptrace_attach() to set both PT_PTRACED and PT_SEIZED bits simultaneously but see the next patch, we need to know whether this child was auto-attached or not anyway. So this patch simply moves this code to ptrace_init_task(), this way we can never race with ptrace_attach(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Tejun Heo <tj@kernel.org>
2011-07-17ptrace_init_task: initialize child->jobctl explicitlyOleg Nesterov1-6/+7
new_child->jobctl is not initialized during the fork, it is copied from parent->jobctl. Currently this is harmless, the forking task is running and copy_process() can't succeed if signal_pending() is true, so only JOBCTL_STOP_DEQUEUED can be copied. Still this is a bit fragile, it would be more clean to set ->jobctl = 0 explicitly. Also, check ->ptrace != 0 instead of PT_PTRACED, move the CONFIG_HAVE_HW_BREAKPOINT code up. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Tejun Heo <tj@kernel.org>
2011-07-17neigh: Kill hh_cache->hh_outputDavid S. Miller1-1/+0
It's just taking on one of two possible values, either neigh_ops->output or dev_queue_xmit(). And this is purely depending upon whether nud_state has NUD_CONNECTED set or not. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-16firewire: cdev: ABI documentation enhancementsStefan Richter1-41/+34
Add overview documentation in Documentation/ABI/stable/firewire-cdev. Improve the inline reference documentation in firewire-cdev.h: - Add /* available since kernel... */ comments to event numbers consistent with the comments on ioctl numbers. - Shorten some documentation on an event and an ioctl that are less interesting to current programming because there are newer preferable variants. - Spell Configuration ROM (name of an IEEE 1212 register) in upper case. - Move the dummy FW_CDEV_VERSION out of the reader's field of vision. We should remove it from the header next year or so. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2011-07-16firewire: cdev: prevent race between first get_info ioctl and bus reset ↵Stefan Richter1-0/+3
event queuing Between open(2) of a /dev/fw* and the first FW_CDEV_IOC_GET_INFO ioctl(2) on it, the kernel already queues FW_CDEV_EVENT_BUS_RESET events to be read(2) by the client. The get_info ioctl is practically always issued right away after open, hence this condition only occurs if the client opens during a bus reset, especially during a rapid series of bus resets. The problem with this condition is twofold: - These bus reset events carry the (as yet undocumented) @closure value of 0. But it is not the kernel's place to choose closures; they are privat to the client. E.g., this 0 value forced from the kernel makes it unsafe for clients to dereference it as a pointer to a closure object without NULL pointer check. - It is impossible for clients to determine the relative order of bus reset events from get_info ioctl(2) versus those from read(2), except in one way: By comparison of closure values. Again, such a procedure imposes complexity on clients and reduces freedom in use of the bus reset closure. So, change the ABI to suppress queuing of bus reset events before the first FW_CDEV_IOC_GET_INFO ioctl was issued by the client. Note, this ABI change cannot be version-controlled. The kernel cannot distinguish old from new clients before the first FW_CDEV_IOC_GET_INFO ioctl. We will try to back-merge this change into currently maintained stable/ longterm series, and we only document the new behaviour. The old behavior is now considered a kernel bug, which it basically is. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: <stable@kernel.org>
2011-07-16Merge commit 'v3.0-rc7' into devicetree/nextGrant Likely22-30/+80
2011-07-16nfsd: Remove deprecated nfsctl system call and related code.NeilBrown3-20/+0
As promised in feature-removal-schedule.txt it is time to remove the nfsctl system call. Userspace has perferred to not use this call throughout 2.6 and it has been excluded in the default configuration since 2.6.36 (9 months ago). So this patch removes all the code that was being compiled out. There are still references to sys_nfsctl in various arch systemcall tables and related code. These should be cleaned out too, probably in the next merge window. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-07-16Merge branch 'pm-runtime' into for-linusRafael J. Wysocki1-0/+6
* pm-runtime: OMAP: PM: disable idle on suspend for GPIO and UART OMAP: PM: omap_device: add API to disable idle on suspend OMAP: PM: omap_device: add system PM methods for PM domain handling OMAP: PM: omap_device: conditionally use PM domain runtime helpers PM / Runtime: Add new helper function: pm_runtime_status_suspended() PM / Runtime: Consistent utilization of deferred_resume PM / Runtime: Prevent runtime_resume from racing with probe PM / Runtime: Replace "run-time" with "runtime" in documentation PM / Runtime: Improve documentation of enable, disable and barrier PM: Limit race conditions between runtime PM and system sleep (v2) PCI / PM: Detect early wakeup in pci_pm_prepare() PM / Runtime: Return special error code if runtime PM is disabled PM / Runtime: Update documentation of interactions with system sleep
2011-07-16Merge branch 'pm-domains' into for-linusRafael J. Wysocki4-20/+134
* pm-domains: (33 commits) ARM / shmobile: Return -EBUSY from A4LC power off if A3RV is active PM / Domains: Take .power_off() error code into account ARM / shmobile: Use genpd_queue_power_off_work() ARM / shmobile: Use pm_genpd_poweroff_unused() PM / Domains: Introduce function to power off all unused PM domains PM / Domains: Queue up power off work only if it is not pending PM / Domains: Improve handling of wakeup devices during system suspend PM / Domains: Do not restore all devices on power off error PM / Domains: Allow callbacks to execute all runtime PM helpers PM / Domains: Do not execute device callbacks under locks PM / Domains: Make failing pm_genpd_prepare() clean up properly PM / Domains: Set device state to "active" during system resume ARM: mach-shmobile: sh7372 A3RV requires A4LC PM / Domains: Export pm_genpd_poweron() in header ARM: mach-shmobile: sh7372 late pm domain off ARM: mach-shmobile: Runtime PM late init callback ARM: mach-shmobile: sh7372 D4 support ARM: mach-shmobile: sh7372 A4MP support ARM: mach-shmobile: sh7372: make sure that fsi is peripheral of spu2 ARM: mach-shmobile: sh7372 A3SG support ...
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