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2019-09-16libceph: add function that clears osd client's abort_errYan, Zheng
Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2019-09-16libceph: add function that reset client's entity addrYan, Zheng
This function also re-open connections to OSD/MON, and re-send in-flight OSD requests after re-opening connections to OSD. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2019-09-16bpf: fix accessing bpf_sysctl.file_pos on s390Ilya Leoshkevich
"ctx:file_pos sysctl:read write ok" fails on s390 with "Read value != nux". This is because verifier rewrites a complete 32-bit bpf_sysctl.file_pos update to a partial update of the first 32 bits of 64-bit *bpf_sysctl_kern.ppos, which is not correct on big-endian systems. Fix by using an offset on big-endian systems. Ditto for bpf_sysctl.file_pos reads. Currently the test does not detect a problem there, since it expects to see 0, which it gets with high probability in error cases, so change it to seek to offset 3 and expect 3 in bpf_sysctl.file_pos. Fixes: e1550bfe0de4 ("bpf: Add file_pos field to bpf_sysctl ctx") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20190816105300.49035-1-iii@linux.ibm.com/
2019-09-15block: make rq sector size accessible for block statsHou Tao
Currently rq->data_len will be decreased by partial completion or zeroed by completion, so when blk_stat_add() is invoked, data_len will be zero and there will never be samples in poll_cb because blk_mq_poll_stats_bkt() will return -1 if data_len is zero. We could move blk_stat_add() back to __blk_mq_complete_request(), but that would make the effort of trying to call ktime_get_ns() once in vain. Instead we can reuse throtl_size field, and use it for both block stats and block throttle, and adjust the logic in blk_mq_poll_stats_bkt() accordingly. Fixes: 4bc6339a583c ("block: move blk_stat_add() to __blk_mq_end_request()") Tested-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-15Merge tag 'spi-nor/for-5.4' of ↵Richard Weinberger
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/for-5.4 MTD core changes: - add debugfs nodes for querying the flash name and id SPI NOR core changes: - always use bounce buffer for register read/writes - move m25p80 code in spi-nor.c - rework hwcaps selection for the spi-mem case - rework the core in order to move the manufacturer specific code out of it: - regroup flash parameters in 'struct spi_nor_flash_parameter' - add default_init() and post_sfdp() hooks to tweak the flash parameters - introduce the ->set_4byte(), ->convert_addr() and ->setup() methods, to deal with manufacturer specific code - rework the SPI NOR lock/unlock logic - fix an error code in spi_nor_read_raw() - fix a memory leak bug - enable the debugfs for the partname and partid - add support for few flashes SPI NOR controller drivers changes: - intel-spi: - Whitelist 4B read commands - Add support for Intel Tiger Lake SPI serial flash - aspeed-smc: Add of_node_put() - hisi-sfc: Add of_node_put() - cadence-quadspi: Fix QSPI RCU Schedule Stall
2019-09-15Merge tag 'nand/for-5.4' of ↵Richard Weinberger
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/for-5.4 NAND core * Fixing typos * Adding missing of_node_put() in various drivers Raw NAND controller drivers: * Macronix: new controller driver * Omap2: Fixing the number of bitflips returned * Brcmnand: Fix a pointer not iterating over all the page chunks * W90x900: Driver removed * Onenand: Fix a memory leak * Sharpsl: Missing include guard * STM32: Avoid warnings when building with W=1 * Ingenic: Fix a coccinelle warning * r852: Call a helper to simplify the code
2019-09-15compiler-types.h: add asm_inline definitionRasmus Villemoes
This adds an asm_inline macro which expands to "asm inline" [1] when the compiler supports it. This is currently gcc 9.1+, gcc 8.3 and (once released) gcc 7.5 [2]. It expands to just "asm" for other compilers. Using asm inline("foo") instead of asm("foo") overrules gcc's heuristic estimate of the size of the code represented by the asm() statement, and makes gcc use the minimum possible size instead. That can in turn affect gcc's inlining decisions. I wasn't sure whether to make this a function-like macro or not - this way, it can be combined with volatile as asm_inline volatile() but perhaps we'd prefer to spell that asm_inline_volatile() anyway. The Kconfig logic is taken from an RFC patch by Masahiro Yamada [3]. [1] Technically, asm __inline, since both inline and __inline__ are macros that attach various attributes, making gcc barf if one literally does "asm inline()". However, the third spelling __inline is available for referring to the bare keyword. [2] https://lore.kernel.org/lkml/20190907001411.GG9749@gate.crashing.org/ [3] https://lore.kernel.org/lkml/1544695154-15250-1-git-send-email-yamada.masahiro@socionext.com/ Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
2019-09-15compiler_types.h: don't #define __inlineRasmus Villemoes
The spellings __inline and __inline__ should be reserved for uses where one really wants to refer to the inline keyword, regardless of whether or not the spelling "inline" has been #defined to something else. Due to use of __inline__ in uapi headers, we can't easily get rid of the definition of __inline__. However, almost all users of __inline have been converted to inline, so we can get rid of that #define. The exception is include/acpi/platform/acintel.h. However, that header is only included when using the intel compiler (does anybody actually build the kernel with that?), and the ACPI_INLINE macro is only used in the definition of utterly trivial stub functions, where I doubt a small change of semantics (lack of __gnu_inline) changes anything. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> [Fix trivial typo in message] Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
2019-09-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Minor overlapping changes in the btusb and ixgbe drivers. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Don't corrupt xfrm_interface parms before validation, from Nicolas Dichtel. 2) Revert use of usb-wakeup in btusb, from Mario Limonciello. 3) Block ipv6 packets in bridge netfilter if ipv6 is disabled, from Leonardo Bras. 4) IPS_OFFLOAD not honored in ctnetlink, from Pablo Neira Ayuso. 5) Missing ULP check in sock_map, from John Fastabend. 6) Fix receive statistic handling in forcedeth, from Zhu Yanjun. 7) Fix length of SKB allocated in 6pack driver, from Christophe JAILLET. 8) ip6_route_info_create() returns an error pointer, not NULL. From Maciej Żenczykowski. 9) Only add RDS sock to the hashes after rs_transport is set, from Ka-Cheong Poon. 10) Don't double clean TX descriptors in ixgbe, from Ilya Maximets. 11) Presence of transmit IPSEC offload in an SKB is not tested for correctly in ixgbe and ixgbevf. From Steffen Klassert and Jeff Kirsher. 12) Need rcu_barrier() when register_netdevice() takes one of the notifier based failure paths, from Subash Abhinov Kasiviswanathan. 13) Fix leak in sctp_do_bind(), from Mao Wenan. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits) cdc_ether: fix rndis support for Mediatek based smartphones sctp: destroy bucket if failed to bind addr sctp: remove redundant assignment when call sctp_get_port_local sctp: change return type of sctp_get_port_local ixgbevf: Fix secpath usage for IPsec Tx offload sctp: Fix the link time qualifier of 'sctp_ctrlsock_exit()' ixgbe: Fix secpath usage for IPsec TX offload. net: qrtr: fix memort leak in qrtr_tun_write_iter net: Fix null de-reference of device refcount ipv6: Fix the link time qualifier of 'ping_v6_proc_exit_net()' tun: fix use-after-free when register netdev failed tcp: fix tcp_ecn_withdraw_cwr() to clear TCP_ECN_QUEUE_CWR ixgbe: fix double clean of Tx descriptors with xdp ixgbe: Prevent u8 wrapping of ITR value to something less than 10us mlx4: fix spelling mistake "veify" -> "verify" net: hns3: fix spelling mistake "undeflow" -> "underflow" net: lmc: fix spelling mistake "runnin" -> "running" NFC: st95hf: fix spelling mistake "receieve" -> "receive" net/rds: An rds_sock is added too early to the hash table mac80211: Do not send Layer 2 Update frame before authorization ...
2019-09-14export.h, genksyms: do not make genksyms calculate CRC of trimmed symbolsMasahiro Yamada
Arnd Bergmann reported false-positive modpost warnings detected by his randconfig testing of linux-next. Actually, this happens under the combination of CONFIG_MODVERSIONS and CONFIG_TRIM_UNUSED_KSYMS since commit 15bfc2348d54 ("modpost: check for static EXPORT_SYMBOL* functions"). For example, arch/arm/config/multi_v7_defconfig + CONFIG_MODVERSIONS + CONFIG_TRIM_UNUSED_KSYMS produces the following false-positives: WARNING: "__lshrdi3" [vmlinux] is a static (unknown) WARNING: "__ashrdi3" [vmlinux] is a static (unknown) WARNING: "__aeabi_lasr" [vmlinux] is a static (unknown) WARNING: "__aeabi_llsr" [vmlinux] is a static (unknown) WARNING: "ftrace_set_clr_event" [vmlinux] is a static (unknown) WARNING: "__muldi3" [vmlinux] is a static (unknown) WARNING: "__aeabi_ulcmp" [vmlinux] is a static (unknown) WARNING: "__ucmpdi2" [vmlinux] is a static (unknown) WARNING: "__aeabi_lmul" [vmlinux] is a static (unknown) WARNING: "__bswapsi2" [vmlinux] is a static (unknown) WARNING: "__bswapdi2" [vmlinux] is a static (unknown) WARNING: "__ashldi3" [vmlinux] is a static (unknown) WARNING: "__aeabi_llsl" [vmlinux] is a static (unknown) The root cause of the problem is not in the modpost, but in the implementation of CONFIG_TRIM_UNUSED_KSYMS. If there is at least one untrimmed symbol in the file, genksyms is invoked to calculate CRC of *all* the exported symbols in that file even if some of them have been trimmed due to no caller existing. As a result, .tmp_*.ver files contain CRC of trimmed symbols, thus unneeded, orphan __crc* symbols are added to objects. It had been harmless until recently. With commit 15bfc2348d54 ("modpost: check for static EXPORT_SYMBOL* functions"), it is now harmful because the bogus __crc* symbols make modpost call sym_update_crc() to add the symbols to the hash table, but there is no one that clears the ->is_static member. I gave Fixes to the first commit that uncovered the issue, but the potential problem has long existed since commit f235541699bc ("export.h: allow for per-symbol configurable EXPORT_SYMBOL()"). Fixes: 15bfc2348d54 ("modpost: check for static EXPORT_SYMBOL* functions") Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Arnd Bergmann <arnd@arndb.de>
2019-09-13Merge tag 'v5.3-rc8' into rdma.git for-nextJason Gunthorpe
To resolve dependencies in following patches mlx5_ib.h conflict resolved by keeing both hunks Linux 5.3-rc8 Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-09-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) Fix error path of nf_tables_updobj(), from Dan Carpenter. 2) Move large structure away from stack in the nf_tables offload infrastructure, from Arnd Bergmann. 3) Move indirect flow_block logic to nf_tables_offload. 4) Support for synproxy objects, from Fernando Fernandez Mancera. 5) Support for fwd and dup offload. 6) Add __nft_offload_get_chain() helper, this implicitly fixes missing mutex and check for offload flags in the indirect block support, patch from wenxu. 7) Remove rules on device unregistration, from wenxu. This includes two preparation patches to reuse nft_flow_offload_chain() and nft_flow_offload_rule(). Large batch from Jeremy Sowden to make a second pass to the CONFIG_HEADER_TEST support and a bit of housekeeping: 8) Missing include guard in conntrack label header, from Jeremy Sowden. 9) A few coding style errors: trailing whitespace, incorrect indent in Kconfig, and semicolons at the end of function definitions. 10) Remove unused ipt_init() and ip6t_init() declarations. 11) Inline xt_hashlimit, ebt_802_3 and xt_physdev headers. They are only used once. 12) Update include directive in several netfilter files. 13) Remove unused include/net/netfilter/ipv6/nf_conntrack_icmpv6.h. 14) Move nf_ip6_ext_hdr() to include/linux/netfilter_ipv6.h 15) Move several synproxy structure definitions to nf_synproxy.h 16) Move nf_bridge_frag_data structure to include/linux/netfilter_bridge.h 17) Clean up static inline definitions in nf_conntrack_ecache.h. 18) Replace defined(CONFIG...) || defined(CONFIG...MODULE) with IS_ENABLED(CONFIG...). 19) Missing inline function conditional definitions based on Kconfig preferences in synproxy and nf_conntrack_timeout. 20) Update br_nf_pre_routing_ipv6() definition. 21) Move conntrack code in linux/skbuff.h to nf_conntrack headers. 22) Several patches to remove superfluous CONFIG_NETFILTER and CONFIG_NF_CONNTRACK checks in headers, coming from the initial batch support for CONFIG_HEADER_TEST for netfilter. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-13padata: remove cpu_index from the parallel_queueDaniel Jordan
With the removal of the ENODATA case from padata_get_next, the cpu_index field is no longer useful, so it can go away. Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13padata: unbind parallel jobs from specific CPUsDaniel Jordan
Padata binds the parallel part of a job to a single CPU and round-robins over all CPUs in the system for each successive job. Though the serial parts rely on per-CPU queues for correct ordering, they're not necessary for parallel work, and it improves performance to run the job locally on NUMA machines and let the scheduler pick the CPU within a node on a busy system. So, make the parallel workqueue unbound. Update the parallel workqueue's cpumask when the instance's parallel cpumask changes. Now that parallel jobs no longer run on max_active=1 workqueues, two or more parallel works that hash to the same CPU may run simultaneously, finish out of order, and so be serialized out of order. Prevent this by keeping the works sorted on the reorder list by sequence number and checking that in the reordering logic. padata_get_next becomes padata_find_next so it can be reused for the end of padata_reorder, where it's used to avoid uselessly queueing work when the next job by sequence number isn't finished yet but a later job that hashed to the same CPU has. The ENODATA case in padata_find_next no longer makes sense because parallel jobs aren't bound to specific CPUs. The EINPROGRESS case takes care of the scenario where a parallel job is potentially running on the same CPU as padata_find_next, and with only one error code left, just use NULL instead. Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: Tejun Heo <tj@kernel.org> Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13padata: use separate workqueues for parallel and serial workDaniel Jordan
padata currently uses one per-CPU workqueue per instance for all work. Prepare for running parallel jobs on an unbound workqueue by introducing dedicated workqueues for parallel and serial work. Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13padata: make padata_do_parallel find alternate callback CPUDaniel Jordan
padata_do_parallel currently returns -EINVAL if the callback CPU isn't in the callback cpumask. pcrypt tries to prevent this situation by keeping its own callback cpumask in sync with padata's and checks that the callback CPU it passes to padata is valid. Make padata handle this instead. padata_do_parallel now takes a pointer to the callback CPU and updates it for the caller if an alternate CPU is used. Overall behavior in terms of which callback CPUs are chosen stays the same. Prepares for removal of the padata cpumask notifier in pcrypt, which will fix a lockdep complaint about nested acquisition of the CPU hotplug lock later in the series. Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13workqueue: unconfine alloc/apply/free_workqueue_attrs()Daniel Jordan
padata will use these these interfaces in a later patch, so unconfine them. Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13padata: allocate workqueue internallyDaniel Jordan
Move workqueue allocation inside of padata to prepare for further changes to how padata uses workqueues. Guarantees the workqueue is created with max_active=1, which padata relies on to work correctly. No functional change. Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Cc: linux-crypto@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13netfilter: remove CONFIG_NETFILTER checks from headers.Jeremy Sowden
`struct nf_hook_ops`, `struct nf_hook_state` and the `nf_hookfn` function typedef appear in function and struct declarations and definitions in a number of netfilter headers. The structs and typedef themselves are defined by linux/netfilter.h but only when CONFIG_NETFILTER is enabled. Define them unconditionally and add forward declarations in order to remove CONFIG_NETFILTER conditionals from the other headers. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13netfilter: conntrack: move code to linux/nf_conntrack_common.h.Jeremy Sowden
Move some `struct nf_conntrack` code from linux/skbuff.h to linux/nf_conntrack_common.h. Together with a couple of helpers for getting and setting skb->_nfct, it allows us to remove CONFIG_NF_CONNTRACK checks from net/netfilter/nf_conntrack.h. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13netfilter: replace defined(CONFIG...) || defined(CONFIG...MODULE) with ↵Jeremy Sowden
IS_ENABLED(CONFIG...). A few headers contain instances of: #if defined(CONFIG_XXX) or defined(CONFIG_XXX_MODULE) Replace them with: #if IS_ENABLED(CONFIG_XXX) Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13netfilter: move nf_bridge_frag_data struct definition to a more appropriate ↵Jeremy Sowden
header. There is a struct definition function in nf_conntrack_bridge.h which is not specific to conntrack and is used elswhere in netfilter. Move it into netfilter_bridge.h. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13netfilter: move inline nf_ip6_ext_hdr() function to a more appropriate header.Jeremy Sowden
There is an inline function in ip6_tables.h which is not specific to ip6tables and is used elswhere in netfilter. Move it into netfilter_ipv6.h and update the callers. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13netfilter: inline xt_hashlimit, ebt_802_3 and xt_physdev headersJeremy Sowden
Three netfilter headers are only included once. Inline their contents at those sites and remove them. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13netfilter: ip_tables: remove unused function declarations.Jeremy Sowden
Two headers include declarations of functions which are never defined. Remove them. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-13netfilter: fix coding-style errors.Jeremy Sowden
Several header-files, Kconfig files and Makefiles have trailing white-space. Remove it. In netfilter/Kconfig, indent the type of CONFIG_NETFILTER_NETLINK_ACCT correctly. There are semicolons at the end of two function definitions in include/net/netfilter/nf_conntrack_acct.h and include/net/netfilter/nf_conntrack_ecache.h. Remove them. Fix indentation in nf_conntrack_l4proto.h. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-09-12vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount APIDavid Howells
Convert the ramfs, shmem, tmpfs, devtmpfs and rootfs filesystems to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Note that tmpfs is slightly tricky as it can contain embedded commas, so it can't be trivially split up using strsep() to break on commas in generic_parse_monolithic(). Instead, tmpfs has to supply its own generic parser. However, if tmpfs changes, then devtmpfs and rootfs, which are wrappers around tmpfs or ramfs, must change too - and thus so must ramfs, so these had to be converted also. [AV: rewritten] Signed-off-by: David Howells <dhowells@redhat.com> cc: Hugh Dickins <hughd@google.com> cc: linux-mm@kvack.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-09-12platform/chrome: cros_ec_chardev: Add a poll handler to receive MKBP eventsEnric Balletbo i Serra
Allow to poll on the cros_ec device to receive the MKBP events. The /dev/cros_[ec|fp|..] file operations now implements the poll operation. The userspace can now receive specific MKBP events by doing the following: - Open the /dev/cros_XX file. - Call the CROS_EC_DEV_IOCEVENTMASK ioctl with the bitmap of the MKBP events it wishes to receive as argument. - Poll on the file descriptor. - When it gets POLLIN, do a read on the file descriptor, the first queued event will be returned (using the struct ec_response_get_next_event format: one byte of event type, then the payload). The read() operation returns at most one event even if there are several queued, and it might be truncated if the buffer is smaller than the event (but the caller should know the maximum size of the events it is reading). read() used to return the EC version string, it still does it when no event mask or an empty event is set for backward compatibility (despite nobody really using this feature). This will be used, for example, by the userspace daemon to receive and treat the EC_MKBP_EVENT_FINGERPRINT sent by the FP MCU. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
2019-09-12mmc: queue: Fix bigger segments usageYoshihiro Shimoda
The commit 38c38cb73223 ("mmc: queue: use bigger segments if DMA MAP layer can merge the segments") always enables the bugger segments if DMA MAP layer can merge the segments, but some controllers (SDHCI) have strictly limitation about the segments size, and then the commit breaks on the controllers. To fix the issue, this patch adds a new flag MMC_CAP2_MERGE_CAPABLE into the struct mmc_host and the bigger segments usage is disabled as default. Reported-by: Thierry Reding <treding@nvidia.com> Fixes: 38c38cb73223 ("mmc: queue: use bigger segments if DMA MAP layer can merge the segments") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-09-12Merge tag 'qcom-drivers-for-5.4' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers Qualcomm ARM Based Driver Updates for v5.4 * Add AOSS QMP support * Various fixups for Qualcomm SCM * Add socinfo driver * Add SoC serial number attribute and associated APIs * Add SM8150 and SC7180 support in Qualcomm SCM * Fixup max processor count in SMEM * tag 'qcom-drivers-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: soc: qcom: aoss: Add AOSS QMP support dt-bindings: soc: qcom: aoss: Add SM8150 and SC7180 support dt-bindings: firmware: scm: Add SM8150 and SC7180 support dt-bindings: firmware: scm: re-order compatible list soc: qcom: smem: Update max processor count soc: qcom: socinfo: Annotate switch cases with fall through soc: qcom: Extend AOSS QMP driver to support resources that are used to wake up the SoC. soc: qcom: socinfo: Expose image information soc: qcom: socinfo: Expose custom attributes soc: qcom: Add socinfo driver base: soc: Export soc_device_register/unregister APIs base: soc: Add serial_number attribute to soc firmware: qcom_scm: Cleanup code in qcom_scm_assign_mem() firmware: qcom_scm: Fix some typos in docs and printks firmware: qcom_scm: Use proper types for dma mappings
2019-09-12quota: fix wrong condition in is_quota_modification()Chao Yu
Quoted from commit 3da40c7b0898 ("ext4: only call ext4_truncate when size <= isize") " At LSF we decided that if we truncate up from isize we shouldn't trim fallocated blocks that were fallocated with KEEP_SIZE and are past the new i_size. This patch fixes ext4 to do this. " And generic/092 of fstest have covered this case for long time, however is_quota_modification() didn't adjust based on that rule, so that in below condition, we will lose to quota block change: - fallocate blocks beyond EOF - remount - truncate(file_path, file_size) Fix it. Link: https://lore.kernel.org/r/20190911093650.35329-1-yuchao0@huawei.com Fixes: 3da40c7b0898 ("ext4: only call ext4_truncate when size <= isize") CC: stable@vger.kernel.org Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jan Kara <jack@suse.cz>
2019-09-12gpio: htc-egpio: Remove unused exported htc_egpio_get_wakeup_irq()Geert Uytterhoeven
This function was never used upstream, and is a relic of the original handhelds.org code the htc-egpio driver was based on. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20190910141529.21030-1-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-11Merge tag 'samsung-soc-5.4-3' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/late Samsung mach/soc changes for v5.4, part 2 1. Fix system restart on S3C6410 due to missing match of watchdog, 2. Enable suppor for ARM architected timers on Exynos. * tag 'samsung-soc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: exynos: Enable support for ARM architected timers ARM: samsung: Fix system restart on S3C6410 MAINTAINERS: Extend patterns for Samsung SoC, Security Subsystem and clock drivers ARM: s3c64xx: squash samsung_usb_phy.h into setup-usb-phy.c ARM: exynos: Enable exynos-chipid driver ARM: samsung: Include GPIO driver header Link: https://lore.kernel.org/r/20190911183632.4317-2-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-09-11module: Fix link failure due to invalid relocation on namespace offsetWill Deacon
Commit 8651ec01daed ("module: add support for symbol namespaces.") broke linking for arm64 defconfig: | lib/crypto/arc4.o: In function `__ksymtab_arc4_setkey': | arc4.c:(___ksymtab+arc4_setkey+0x8): undefined reference to `no symbol' | lib/crypto/arc4.o: In function `__ksymtab_arc4_crypt': | arc4.c:(___ksymtab+arc4_crypt+0x8): undefined reference to `no symbol' This is because the dummy initialisation of the 'namespace_offset' field in 'struct kernel_symbol' when using EXPORT_SYMBOL on architectures with support for PREL32 locations uses an offset from an absolute address (0) in an effort to trick 'offset_to_pointer' into behaving as a NOP, allowing non-namespaced symbols to be treated in the same way as those belonging to a namespace. Unfortunately, place-relative relocations require a symbol reference rather than an absolute value and, although x86 appears to get away with this due to placing the kernel text at the top of the address space, it almost certainly results in a runtime failure if the kernel is relocated dynamically as a result of KASLR. Rework 'namespace_offset' so that a value of 0, which cannot occur for a valid namespaced symbol, indicates that the corresponding symbol does not belong to a namespace. Cc: Matthias Maennich <maennich@google.com> Cc: Jessica Yu <jeyu@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Fixes: 8651ec01daed ("module: add support for symbol namespaces.") Reported-by: kbuild test robot <lkp@intel.com> Tested-by: Matthias Maennich <maennich@google.com> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Matthias Maennich <maennich@google.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Jessica Yu <jeyu@kernel.org>
2019-09-11cpuidle: allow governor switch on cpuidle_register_driver()Joao Martins
The recently introduced haltpoll driver is largely only useful with haltpoll governor. To allow drivers to associate with a particular idle behaviour, add a @governor property to 'struct cpuidle_driver' and thus allow a cpuidle driver to switch to a *preferred* governor on idle driver registration. We save the previous governor, and when an idle driver is unregistered we switch back to that. The @governor can be overridden by cpuidle.governor= boot param or alternatively be ignored if the governor doesn't exist. Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-09-11Merge branch 'regulator-5.4' into regulator-nextMark Brown
2019-09-11net: stmmac: implement support for passive mode converters via dtAlexandru Ardelean
In-between the MAC & PHY there can be a mode converter, which converts one mode to another (e.g. GMII-to-RGMII). The converter, can be passive (i.e. no driver or OS/SW information required), so the MAC & PHY need to be configured differently. For the `stmmac` driver, this is implemented via a `mac-mode` property in the device-tree, which configures the MAC into a certain mode, and for the PHY a `phy_interface` field will hold the mode of the PHY. The mode of the PHY will be passed to the PHY and from there-on it work in a different mode. If unspecified, the default `phy-mode` will be used for both. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-11qed*: Fix size of config attribute dump.Sudarsana Reddy Kalluru
Driver currently returns max-buf-size as size of the config attribute. This patch incorporates changes to read this value from MFW (if available) and provide it to the user. Also did a trivial clean up in this path. Fixes: d44a3ced7023 ("qede: Add support for reading the config id attributes.") Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-11mmc: core: Clarify that the ->ack_sdio_irq() callback is mandatoryUlf Hansson
For the MMC_CAP2_SDIO_IRQ_NOTHREAD case and when using sdio_signal_irq(), the ->ack_sdio_irq() is already mandatory, which was not the case for those host drivers that called sdio_run_irqs() directly. As there are no longer any drivers calling sdio_run_irqs(), let's clarify the code by dropping the unnecessary check and explicitly state that the callback is mandatory in the header file. Tested-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11mmc: core: Add helper function to indicate if SDIO IRQs is enabledUlf Hansson
To avoid each host driver supporting SDIO IRQs, from keeping track internally about if SDIO IRQs has been claimed, let's introduce a common helper function, sdio_irq_claimed(). The function returns true if SDIO IRQs are claimed, via using the information about the number of claimed irqs. This is safe, even without any locks, as long as the helper function is called only from runtime/system suspend callbacks of the host driver. Tested-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11PCI: Add Genesys Logic, Inc. Vendor IDBen Chuang
Add the Genesys Logic, Inc. vendor ID to pci_ids.h. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Co-developed-by: Michael K Johnson <johnsonm@danlj.org> Signed-off-by: Michael K Johnson <johnsonm@danlj.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-09-11gpio: of: Make of_gpio_simple_xlate() privateGeert Uytterhoeven
Since commit 9a95e8d25a140ba9 ("gpio: remove etraxfs driver"), there are no more users of of_gpio_simple_xlate() outside gpiolib-of.c. All GPIO drivers that need it now rely on of_gpiochip_add() setting it up as the default translate function. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20190906084539.21838-3-geert+renesas@glider.be Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-09-11Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', ↵Joerg Roedel
'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next
2019-09-11iommu/vt-d: Add Scalable Mode fault informationKyung Min Park
Intel VT-d specification revision 3 added support for Scalable Mode Translation for DMA remapping. Add the Scalable Mode fault reasons to show detailed fault reasons when the translation fault happens. Link: https://software.intel.com/sites/default/files/managed/c5/15/vt-directed-io-spec.pdf Reviewed-by: Sohil Mehta <sohil.mehta@intel.com> Signed-off-by: Kyung Min Park <kyung.min.park@intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11swiotlb: Split size parameter to map/unmap APIsLu Baolu
This splits the size parameter to swiotlb_tbl_map_single() and swiotlb_tbl_unmap_single() into an alloc_size and a mapping_size parameter, where the latter one is rounded up to the iommu page size. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-09-11gpio: Initialize the irqchip valid_mask with a callbackLinus Walleij
After changing the valid_mask for the struct gpio_chip to detect the need and presence of a valid mask with the presence of a .init_valid_mask() callback to fill it in, we augment the gpio_irq_chip to use the same logic. Switch all driver using the gpio_irq_chio valid_mask over to this new method. This makes sure the valid_mask for the gpio_irq_chip gets filled in when we add the gpio_chip, which makes it a little easier to switch over drivers using the old way of setting up gpio_irq_chip over to the new method of passing the gpio_irq_chip along with the gpio_chip. (See drivers/gpio/TODO for details.) Cc: Joel Stanley <joel@jms.id.au> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Link: https://lore.kernel.org/r/20190904140104.32426-1-linus.walleij@linaro.org
2019-09-10export.h: remove defined(__KERNEL__), which is no longer neededMasahiro Yamada
The conditional, define(__KERNEL__), was added by commit f235541699bc ("export.h: allow for per-symbol configurable EXPORT_SYMBOL()"). It was needed at that time to avoid the build error of modpost with CONFIG_TRIM_UNUSED_KSYMS=y. Since commit b2c5cdcfd4bc ("modpost: remove symbol prefix support"), modpost no longer includes linux/export.h, thus the define(__KERNEL__) is unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Nicolas Pitre <nico@fluxnic.net>
2019-09-10Merge tag 'ipc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull ipc regression fixes from Arnd Bergmann: "Fix ipc regressions from y2038 patches These are two regression fixes for bugs that got introduced during the system call rework that went into linux-5.1 but only bisected and fixed now: - One patch affects semtimedop() on many of the less common 32-bit architectures, this just needs a single-line bugfix. - The other affects only sparc64 and has a slightly more invasive workaround to apply the same change to sparc64 that was done to the generic code used everywhere else" * tag 'ipc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: ipc: fix sparc64 ipc() wrapper ipc: fix semtimedop for generic 32-bit architectures
2019-09-10Merge tag 'asoc-v5.4' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v5.4 Quite a big update this time around, particularly in the core where we've had a lot of cleanups from Morimoto-san - there's not much functional change but quite a bit of modernization going on. We've also seen a lot of driver work, a lot of it cleanups but also some particular drivers. - Lots and lots of cleanups from Morimoto-san and Yue Haibing. - Lots of cleanups and enhancements to the Freescale, sunxi dnd Intel rivers. - Initial Sound Open Firmware suppot for i.MX8. - Removal of w90x900 and nuc900 drivers as the platforms are being removed. - New support for Cirrus Logic CS47L15 and CS47L92, Freescale i.MX 7ULP and 8MQ, Meson G12A and NXP UDA1334