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2016-10-08Merge branch 'work.const-qstr' into work.miscAl Viro
2016-10-08Merge branch 'work.iget' into work.miscAl Viro
2016-10-08parisc: Migrate exception table users off module.h and onto extable.hPaul Gortmaker
This file was only including module.h for exception table related functions. We've now separated that content out into its own file "extable.h" so now move over to that and avoid all the extra header content in module.h that we don't really need to compile this file. Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: linux-parisc@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Helge Deller <deller@gmx.de>
2016-10-08Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth Johan Hedberg says: ==================== pull request: bluetooth 2016-10-08 Here are a couple of Bluetooth fixes for the 4.9 kernel: - Firmware download fix for Atheros controllers - Fixes to the content of LE scan response - New USB ID for a Marvell chipset Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-08x86/pkeys: Make protection keys an "eager" featureDave Hansen
Our XSAVE features are divided into two categories: those that generate FPU exceptions, and those that do not. MPX and pkeys do not generate FPU exceptions and thus can not be used lazily. We disable them when lazy mode is forced on. We have a pair of masks to collect these two sets of features, but XFEATURE_MASK_PKRU was added to the wrong mask: XFEATURE_MASK_LAZY. Fix it by moving the feature to XFEATURE_MASK_EAGER. Note: this only causes problem if you boot with lazy FPU mode (eagerfpu=off) which is *not* the default. It also only affects hardware which is not currently publicly available. It looks like eager mode is going away, but we still need this patch applied to any kernel that has protection keys and lazy mode, which is 4.6 through 4.8 at this point, and 4.9 if the lazy removal isn't sent to Linus for 4.9. Fixes: c8df40098451 ("x86/fpu, x86/mm/pkeys: Add PKRU xsave fields and data structures") Signed-off-by: Dave Hansen <dave.hansen@intel.com> Cc: Dave Hansen <dave@sr71.net> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20161007162342.28A49813@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-08x86/apic: Prevent pointless warning messagesThomas Gleixner
Markus reported that he sees new warnings: APIC: NR_CPUS/possible_cpus limit of 4 reached. Processor 4/0x84 ignored. APIC: NR_CPUS/possible_cpus limit of 4 reached. Processor 5/0x85 ignored. This comes from the recent persistant cpuid - nodeid changes. The code which emits the warning has been called prior to these changes only for enabled processors. Now it's called for disabled processors as well to get the possible cpu accounting correct. So if the kernel is compiled for the number of actual available/enabled CPUs and the BIOS reports disabled CPUs as well then the above warnings are printed. That's a pointless exercise as it only makes sense if there are more CPUs enabled than the kernel supports. Nake the warning conditional on enabled processors so we are back to the state before these changes. Fixes: 8f54969dc8d6 ("x86/acpi: Introduce persistent storage for cpuid <-> apicid mapping") Reported-and-tested-by: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> Cc: Dou Liyang <douly.fnst@cn.fujitsu.com> Cc: linux-acpi@vger.kernel.org Cc: Gu Zheng <guz.fnst@cn.fujitsu.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1610071549330.19804@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-08x86/acpi: Prevent LAPIC id 0xff from being accountedThomas Gleixner
Yinghai reported that the recent changes to make the cpuid - nodeid relationship permanent causes a cpuid ordering regression on a system which has 2apic enabled.. The reason is that the ACPI local APIC parser has no sanity check for apicid 0xff, which is an invalid id. So a CPU id for this invalid local APIC id is allocated and therefor breaks the cpuid ordering. Add a sanity check to acpi_parse_lapic() which ignores the invalid id. Fixes: 8f54969dc8d6 ("x86/acpi: Introduce persistent storage for cpuid <-> apicid mapping") Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Gu Zheng <guz.fnst@cn.fujitsu.com>, Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: douly.fnst@cn.fujitsu.com, Cc: zhugh.fnst@cn.fujitsu.com Cc: Tony Luck <tony.luck@intel.com> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Len Brown <lenb@kernel.org> Cc: Lv Zheng <lv.zheng@intel.com>, Cc: robert.moore@intel.com Cc: linux-acpi@vger.kernel.org Link: https://lkml.kernel.org/r/CAE9FiQVQx6FRXT-RdR7Crz4dg5LeUWHcUSy1KacjR+JgU_vGJg@mail.gmail.com
2016-10-08befs: befs: fix style issues in datastream.cLuis de Bethencourt
Fixing the following checkpatch.pl errors: ERROR: "foo * bar" should be "foo *bar" + befs_blocknr_t blockno, befs_block_run * run); WARNING: Missing a blank line after declarations + struct buffer_head *bh; + befs_debug(sb, "---> %s length: %llu", __func__, len); WARNING: Block comments use * on subsequent lines + /* + Double indir block, plus all the indirect blocks it maps. (and other instances of these) Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: improve documentation in datastream.cLuis de Bethencourt
Convert function descriptions to kernel-doc style. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix typos in datastream.cLuis de Bethencourt
Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix typos in btree.cLuis de Bethencourt
Fixing typos in kernel-doc function descriptions in fs/befs/btree.c. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix style issues in super.cLuis de Bethencourt
Fixing the following checkpatch.pl error: ERROR: "foo * bar" should be "foo *bar" +befs_load_sb(struct super_block *sb, befs_super_block * disk_sb) And the following warnings: WARNING: suspect code indent for conditional statements (8, 12) + if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE) + befs_sb->byte_order = BEFS_BYTESEX_LE; WARNING: suspect code indent for conditional statements (8, 12) + else if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_BE) + befs_sb->byte_order = BEFS_BYTESEX_BE; WARNING: break quoted strings at a space character + befs_error(sb, "blocksize(%u) cannot be larger" + "than system pagesize(%lu)", befs_sb->block_size, WARNING: line over 80 characters + if (befs_sb->log_start != befs_sb->log_end || befs_sb->flags == BEFS_DIRTY) { Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: fix comment styleLuis de Bethencourt
The description of befs_load_sb was confusing the kernel-doc system since, because it starts with /**, it thinks it will document the function with kernel-doc formatting. Which it isn't. Fix other comment style issues in the file while we are at it. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: add check for ag_shift in superblockLuis de Bethencourt
ag_shift and blocks_per_ag contain the same information in different ways, same as block_shift and block_size do. It is worth checking this two are consistent, but since blocks_per_ag isn't documented as mandatory to use some implementations of befs don't enforce this, so making it non-fatal if they don't match and just having it as a warning. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: dump inode_size superblock informationLuis de Bethencourt
befs_dump_super_block() wasn't giving the inode_size information when dumping all elements of the superblock. Add this element to have complete information of the superblock. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: remove unnecessary initializationSalah Triki
There is no need to init block, since it will be overwitten later by iaddr2blockno(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: fix typo in befs_sb_infoSalah Triki
Fixing jornal to Journal. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: add flags field to validate superblock stateSalah Triki
For validating superblock state, add flags field to befs_sb_info, read the state from the disk and check if it is equal to BEFS_DIRTY. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: fix typo in befs_find_keyLuis de Bethencourt
Fixing skeep to skip. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: remove unused BEFS_BT_PARMATCHLuis de Bethencourt
befs_btree_find(), the only caller of befs_find_key(), only cares about if the return from that function is BEFS_BT_MATCH or not. It never uses the partial match given with BEFS_BT_PARMATCH. Make the overflow return clearer by having BEFS_BT_OVERFLOW instead of BEFS_BT_PARMATCH. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
2016-10-08fs: befs: remove ret variableSalah Triki
ret is initialized to -EIO and is never modified, so remove ret and use -EIO directly. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove in vain variable assignmentSalah Triki
There is no need to init res, since it will be overwitten later by befs_fblock2brun(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove unnecessary *befs_sb variableSalah Triki
Remove *befs_sb and just call BEFS_SB(sb) directly, since the returned value by this function is only used once. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove useless initialization to zeroSalah Triki
node_off is unconditionally set to bt_super.root_node_ptr, so no need to init it to zero. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove in vain variable assignmentSalah Triki
There is no need to set *value, it will be overwritten later. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Insert NULL inode to dentrySalah Triki
As VFS expects, lookup inserts NULL inode to dentry when the named inode does not exist. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirectSalah Triki
The calls to brelse are useless since dbl_indir_block and indir_block are NULL. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Coding style fixSalah Triki
Constant has to be capitalized. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: Remove redundant validation from befs_find_brun_directSalah Triki
The only caller of befs_find_brun_direct is befs_fblock2brun, which already validates that the block is within the range of direct blocks. So remove the duplicate validation. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: fix typo in befs_bt_read_node documentationLuis de Bethencourt
Fixing a grammatical error in the documentation. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: in memory free_node_ptr and max_size never readLuis de Bethencourt
The only place the values of free_node_ptr and max_size are read is in befs_dump_index_entry(), which both times it is called, it is passed the on disk superblock. Removing assignment of unused values. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: make consistent use of befs_error()Luis de Bethencourt
befs_error() is used in potential errors that could happen in befs to provide informational log messages. befs_debug() is silent when CONFIG_BEFS_DEBUG=no, and very verbose when switched on, which is why it is used for general debugging but not for errors. Fix a few cases where the befs debug utility usage isn't following the expected pattern. To make sure we have consistent information in the logs. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: use simpler while loopLuis de Bethencourt
Replace goto with simpler while loop to make befs_readdir() more readable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08befs: remove constant variableLuis de Bethencourt
Use macro directly instead of via assigning it to an unchanging variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
2016-10-08befs: avoid dereferencing dentry twiceLuis de Bethencourt
No need to dereference dentry twice to get the name when we already have it stored in a local variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: remove comment that confuses kernel-docLuis de Bethencourt
This comment with a mysterious unfinished line confuses the kernel-doc system since, because it starts with /**, it thinks it is documenting a function. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
2016-10-08fs: befs: check silent flag before logging errorLuis de Bethencourt
Log error only when silent flag is not set. Fixes: dbe6460388bc ("fs/befs/linuxvfs.c: check silent flag before logging errors") Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
2016-10-08fs: befs: replace befs_bread by sb_breadSalah Triki
Since befs_bread merely calls sb_bread, replace it by sb_bread. Link: http://lkml.kernel.org/r/1466800258-4542-1-git-send-email-salah.triki@gmail.com Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08befs: remove unused functionsLuis de Bethencourt
befs_iaddr_is_empty() and befs_brun_size() are unused. Remove them. Link: http://lkml.kernel.org/r/1465700235-22881-3-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08befs: fix function name in documentationLuis de Bethencourt
Documentation of function befs_load_cb() lists it as load_befs_sb(). Fix the misnomer. Link: http://lkml.kernel.org/r/1465700235-22881-2-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08befs: check return of sb_min_blocksizeLuis de Bethencourt
Confirm sb_min_blocksize() succeeded before continuing. Link: http://lkml.kernel.org/r/1465700235-22881-1-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08fs: befs: remove useless pr_err in befs_init_inodecache()Salah Triki
Remove pr_err since kmem_cache_create log error and dump stack. Link: http://lkml.kernel.org/r/e6d03cbc9542495dc6174b59e32fcd41c1393cfc.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org>
2016-10-08fs/befs/linuxvfs.c: remove useless befs_errorSalah Triki
Remove befs_error since when kmalloc fails there is a generic out of memory and stack dump. Link: http://lkml.kernel.org/r/3de4d388d98bbb570462a5eb8e64623e17fb5d74.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08fs/befs/linuxvfs.c: remove useless pr_err in befs_fill_super()Salah Triki
Remove pr_err since when kzalloc fails there is a generic out of memory and stack dump. Link: http://lkml.kernel.org/r/c5a7f2d42ec0fc8465c118248e88cd221c483391.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08fs/befs/linuxvfs.c: check silent flag before logging errorsSalah Triki
Log errors only when silent flag is not set. Link: http://lkml.kernel.org/r/d400aaf5a7430de79bd956e40ec075fb1cb08474.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08fs/befs/linuxvfs.c: move useless assignmentSalah Triki
Control is transfered to unacquire_none when sb->s_fs_info is equal to NULL, so the assignment to NULL is useless and it is moved above unacquire_none. Link: http://lkml.kernel.org/r/ed41da113fc693c7daa4e8813ca04cc766ddfc05.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2016-10-08watchdog: imx2_wdt: add pretimeout function supportVladimir Zapolskiy
The change adds watchdog pretimeout notification handling to imx2_wdt driver, if device data contains information about a valid interrupt. It is unlikely but still possible (e.g. through a software limitation) that only a subset of watchdogs on SoC has interrupt lines, hence functionally the devices from these two groups have different capabilities, and this is reflected in different watchdog_info structs assigned to the devices. Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-10-08watchdog: softdog: implement pretimeout supportWolfram Sang
Give devices which do not have hardware support for pretimeout at least a software version of it. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-10-08watchdog: pretimeout: add pretimeout_available_governors attributeVladimir Zapolskiy
The change adds an option to a user with CONFIG_WATCHDOG_SYSFS and CONFIG_WATCHDOG_PRETIMEOUT_GOV enabled to get information about all registered watchdog pretimeout governors by reading watchdog device attribute named "pretimeout_available_governors". Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-10-08watchdog: pretimeout: add option to select a pretimeout governor in runtimeVladimir Zapolskiy
The change converts watchdog device attribute "pretimeout_governor" from read-only to read-write type to allow users to select a desirable watchdog pretimeout governor in runtime, e.g. % echo -n panic > /sys/..../watchdog/watchdog0/pretimeout To get this working a list of registered pretimeout governors is created and a new helper function watchdog_pretimeout_governor_set() is exported to watchdog_dev.c. If a selected governor is gone, a watchdog device pretimeout notification is delegated to a default built-in pretimeout governor. Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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