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2019-10-01s390/cpumf: Use consistant debug print formatThomas Richter
Use consistant debug print format of the form variable blank value. Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-10-01xen/efi: Set nonblocking callbacksRoss Lagerwall
Other parts of the kernel expect these nonblocking EFI callbacks to exist and crash when running under Xen. Since the implementations of xen_efi_set_variable() and xen_efi_query_variable_info() do not take any locks, use them for the nonblocking callbacks too. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
2019-09-30net: sched: taprio: Fix potential integer overflow in taprio_set_picos_per_byteVladimir Oltean
The speed divisor is used in a context expecting an s64, but it is evaluated using 32-bit arithmetic. To avoid that happening, instead of multiplying by 1,000,000 in the first place, simplify the fraction and do a standard 32 bit division instead. Fixes: f04b514c0ce2 ("taprio: Set default link speed to 10 Mbps in taprio_set_picos_per_byte") Reported-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30net: dsa: sja1105: Prevent leaking memoryNavid Emamdoost
In sja1105_static_config_upload, in two cases memory is leaked: when static_config_buf_prepare_for_upload fails and when sja1105_inhibit_tx fails. In both cases config_buf should be released. Fixes: 8aa9ebccae87 ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch") Fixes: 1a4c69406cc1 ("net: dsa: sja1105: Prevent PHY jabbering during switch reset") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01modpost: fix static EXPORT_SYMBOL warnings for UML buildMasahiro Yamada
Johannes Berg reports lots of modpost warnings on ARCH=um builds: WARNING: "rename" [vmlinux] is a static EXPORT_SYMBOL WARNING: "lseek" [vmlinux] is a static EXPORT_SYMBOL WARNING: "ftruncate64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "getuid" [vmlinux] is a static EXPORT_SYMBOL WARNING: "lseek64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "unlink" [vmlinux] is a static EXPORT_SYMBOL WARNING: "pwrite64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "close" [vmlinux] is a static EXPORT_SYMBOL WARNING: "opendir" [vmlinux] is a static EXPORT_SYMBOL WARNING: "pread64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "syscall" [vmlinux] is a static EXPORT_SYMBOL WARNING: "readdir" [vmlinux] is a static EXPORT_SYMBOL WARNING: "readdir64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "futimes" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__lxstat" [vmlinux] is a static EXPORT_SYMBOL WARNING: "write" [vmlinux] is a static EXPORT_SYMBOL WARNING: "closedir" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__xstat" [vmlinux] is a static EXPORT_SYMBOL WARNING: "fsync" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__lxstat64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__fxstat64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "telldir" [vmlinux] is a static EXPORT_SYMBOL WARNING: "printf" [vmlinux] is a static EXPORT_SYMBOL WARNING: "readlink" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__sprintf_chk" [vmlinux] is a static EXPORT_SYMBOL WARNING: "link" [vmlinux] is a static EXPORT_SYMBOL WARNING: "rmdir" [vmlinux] is a static EXPORT_SYMBOL WARNING: "fdatasync" [vmlinux] is a static EXPORT_SYMBOL WARNING: "truncate" [vmlinux] is a static EXPORT_SYMBOL WARNING: "statfs" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__errno_location" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__xmknod" [vmlinux] is a static EXPORT_SYMBOL WARNING: "open64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "truncate64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "open" [vmlinux] is a static EXPORT_SYMBOL WARNING: "read" [vmlinux] is a static EXPORT_SYMBOL WARNING: "chown" [vmlinux] is a static EXPORT_SYMBOL WARNING: "chmod" [vmlinux] is a static EXPORT_SYMBOL WARNING: "utime" [vmlinux] is a static EXPORT_SYMBOL WARNING: "fchmod" [vmlinux] is a static EXPORT_SYMBOL WARNING: "seekdir" [vmlinux] is a static EXPORT_SYMBOL WARNING: "ioctl" [vmlinux] is a static EXPORT_SYMBOL WARNING: "dup2" [vmlinux] is a static EXPORT_SYMBOL WARNING: "statfs64" [vmlinux] is a static EXPORT_SYMBOL WARNING: "utimes" [vmlinux] is a static EXPORT_SYMBOL WARNING: "mkdir" [vmlinux] is a static EXPORT_SYMBOL WARNING: "fchown" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__guard" [vmlinux] is a static EXPORT_SYMBOL WARNING: "symlink" [vmlinux] is a static EXPORT_SYMBOL WARNING: "access" [vmlinux] is a static EXPORT_SYMBOL WARNING: "__stack_smash_handler" [vmlinux] is a static EXPORT_SYMBOL When you run "make", the modpost is run twice; before linking vmlinux, and before building modules. All the warnings above are from the second modpost. The offending symbols are defined not in vmlinux, but in the C library. The first modpost is run against the relocatable vmlinux.o, and those warnings are nicely suppressed because the SH_UNDEF entries from the symbol table clear the ->is_static flag. The second modpost is run against the executable vmlinux (+ modules), where those symbols have been resolved, but the definitions do not exist. This commit fixes it in a straightforward way; suppress the static EXPORT_SYMBOL warnings from "vmlinux". Without this commit, we see valid warnings twice anyway. For example, ARCH=arm64 defconfig shows the following warning twice: WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL So, it is reasonable to suppress the second one. Fixes: 15bfc2348d54 ("modpost: check for static EXPORT_SYMBOL* functions") Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Johannes Berg <johannes@sipsolutions.net> Tested-by: Denis Efremov <efremov@linux.com>
2019-10-01kbuild: correct formatting of header in kbuild module docsAlex Gaynor
Minor formatting fixup. Fixes: cd238effefa2 ("docs: kbuild: convert docs to ReST and rename to *.rst") Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Matthew Garrett <mjg59@google.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-10-01kbuild: remove SUBDIRS supportMasahiro Yamada
Linux 5.3 is out. Remove the SUBDIRS support. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-09-30net: dsa: sja1105: Ensure PTP time for rxtstamp reconstruction is not in the ↵Vladimir Oltean
past Sometimes the PTP synchronization on the switch 'jumps': ptp4l[11241.155]: rms 8 max 16 freq -21732 +/- 11 delay 742 +/- 0 ptp4l[11243.157]: rms 7 max 17 freq -21731 +/- 10 delay 744 +/- 0 ptp4l[11245.160]: rms 33592410 max 134217731 freq +192422 +/- 8530253 delay 743 +/- 0 ptp4l[11247.163]: rms 811631 max 964131 freq +10326 +/- 557785 delay 743 +/- 0 ptp4l[11249.166]: rms 261936 max 533876 freq -304323 +/- 126371 delay 744 +/- 0 ptp4l[11251.169]: rms 48700 max 57740 freq -20218 +/- 30532 delay 744 +/- 0 ptp4l[11253.171]: rms 14570 max 30163 freq -5568 +/- 7563 delay 742 +/- 0 ptp4l[11255.174]: rms 2914 max 3440 freq -22001 +/- 1667 delay 744 +/- 1 ptp4l[11257.177]: rms 811 max 1710 freq -22653 +/- 451 delay 744 +/- 1 ptp4l[11259.180]: rms 177 max 218 freq -21695 +/- 89 delay 741 +/- 0 ptp4l[11261.182]: rms 45 max 92 freq -21677 +/- 32 delay 742 +/- 0 ptp4l[11263.186]: rms 14 max 32 freq -21733 +/- 11 delay 742 +/- 0 ptp4l[11265.188]: rms 9 max 14 freq -21725 +/- 12 delay 742 +/- 0 ptp4l[11267.191]: rms 9 max 16 freq -21727 +/- 13 delay 742 +/- 0 ptp4l[11269.194]: rms 6 max 15 freq -21726 +/- 9 delay 743 +/- 0 ptp4l[11271.197]: rms 8 max 15 freq -21728 +/- 11 delay 743 +/- 0 ptp4l[11273.200]: rms 6 max 12 freq -21727 +/- 8 delay 743 +/- 0 ptp4l[11275.202]: rms 9 max 17 freq -21720 +/- 11 delay 742 +/- 0 ptp4l[11277.205]: rms 9 max 18 freq -21725 +/- 12 delay 742 +/- 0 Background: the switch only offers partial RX timestamps (24 bits) and it is up to the driver to read the PTP clock to fill those timestamps up to 64 bits. But the PTP clock readout needs to happen quickly enough (in 0.135 seconds, in fact), otherwise the PTP clock will wrap around 24 bits, condition which cannot be detected. Looking at the 'max 134217731' value on output line 3, one can see that in hex it is 0x8000003. Because the PTP clock resolution is 8 ns, that means 0x1000000 in ticks, which is exactly 2^24. So indeed this is a PTP clock wraparound, but the reason might be surprising. What is going on is that sja1105_tstamp_reconstruct(priv, now, ts) expects a "now" time that is later than the "ts" was snapshotted at. This, of course, is obvious: we read the PTP time _after_ the partial RX timestamp was received. However, the workqueue is processing frames from a skb queue and reuses the same PTP time, read once at the beginning. Normally the skb queue only contains one frame and all goes well. But when the skb queue contains two frames, the second frame that gets dequeued might have been partially timestamped by the RX MAC _after_ we had read our PTP time initially. The code was originally like that due to concerns that SPI access for PTP time readout is a slow process, and we are time-constrained anyway (aka: premature optimization). But some timing analysis reveals that the time spent until the RX timestamp is completely reconstructed is 1 order of magnitude lower than the 0.135 s deadline even under worst-case conditions. So we can afford to read the PTP time for each frame in the RX timestamping queue, which of course ensures that the full PTP time is in the partial timestamp's future. Fixes: f3097be21bf1 ("net: dsa: sja1105: Add a state machine for RX timestamping") Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01kbuild: remove ar-option and KBUILD_ARFLAGSMasahiro Yamada
Commit 40df759e2b9e ("kbuild: Fix build with binutils <= 2.19") introduced ar-option and KBUILD_ARFLAGS to deal with old binutils. According to Documentation/process/changes.rst, the current minimal supported version of binutils is 2.21 so you can assume the 'D' option is always supported. Not only GNU ar but also llvm-ar supports it. With the 'D' option hard-coded, there is no more user of ar-option or KBUILD_ARFLAGS. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Nick Desaulniers <ndesaulniers@google.com>
2019-09-30Merge tag 'ieee802154-for-davem-2019-09-28' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan Stefan Schmidt says: ==================== pull-request: ieee802154 for net 2019-09-28 An update from ieee802154 for your *net* tree. Three driver fixes. Navid Emamdoost fixed a memory leak on an error path in the ca8210 driver, Johan Hovold fixed a use-after-free found by syzbot in the atusb driver and Christophe JAILLET makes sure __skb_put_data is used instead of memcpy in the mcr20a driver I switched from branches to tags here to be pulled from. So far not annotated and not signed. Once I fixed my scripts it should contain this messages as annotations. If you want it signed as well just tell me. If there are any problems let me know. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30net: Unpublish sk from sk_reuseport_cb before call_rcuMartin KaFai Lau
The "reuse->sock[]" array is shared by multiple sockets. The going away sk must unpublish itself from "reuse->sock[]" before making call_rcu() call. However, this unpublish-action is currently done after a grace period and it may cause use-after-free. The fix is to move reuseport_detach_sock() to sk_destruct(). Due to the above reason, any socket with sk_reuseport_cb has to go through the rcu grace period before freeing it. It is a rather old bug (~3 yrs). The Fixes tag is not necessary the right commit but it is the one that introduced the SOCK_RCU_FREE logic and this fix is depending on it. Fixes: a4298e4522d6 ("net: add SOCK_RCU_FREE socket flag") Cc: Eric Dumazet <eric.dumazet@gmail.com> Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30MIPS: dts: ar9331: fix interrupt-controller sizeOleksij Rempel
It is two registers each of 4 byte. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: devicetree@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-09-30MIPS: Loongson64: Fix boot failure after dropping boot_mem_mapHuacai Chen
From commit a94e4f24ec83 ("MIPS: init: Drop boot_mem_map") onwards, add_memory_region() is handled by memblock_add()/memblock_reserve() directly and all bootmem API should be converted to memblock API. Otherwise it will lead to boot failure, especially in the NUMA case because add_memory_region lose the node_id information. Fixes: a94e4f24ec836c8984f83959 ("MIPS: init: Drop boot_mem_map") Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> [paul.burton@mips.com: - Invert node_id check to de-indent the switch statement & avoid lines over 80 characters. - Fixup commit reference in commit message.] Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-mips@vger.kernel.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: Huacai Chen <chenhuacai@gmail.com>
2019-10-01erofs: fix mis-inplace determination related with noio chainGao Xiang
Fix a recent cleanup patch. noio (bypass) chain is handled asynchronously against submit chain, therefore inplace I/O or pagevec cannot be applied to such pages. Add detailed comment for this as well. Fixes: 97e86a858bc3 ("staging: erofs: tidy up decompression frontend") Reviewed-by: Chao Yu <yuchao0@huawei.com> Link: https://lore.kernel.org/r/20190922100434.229340-1-gaoxiang25@huawei.com Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
2019-10-01erofs: fix erofs_get_meta_page locking due to a cleanupGao Xiang
After doing more drop_caches stress test on our products, I found the mistake introduced by a very recent cleanup [1]. The current rule is that "erofs_get_meta_page" should be returned with page locked (although it's mostly unnecessary for read-only fs after pages are PG_uptodate), but a fix should be done for this. [1] https://lore.kernel.org/r/20190904020912.63925-26-gaoxiang25@huawei.com Fixes: 618f40ea026b ("erofs: use read_cache_page_gfp for erofs_get_meta_page") Reviewed-by: Chao Yu <yuchao0@huawei.com> Link: https://lore.kernel.org/r/20190921184355.149928-1-gaoxiang25@huawei.com Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
2019-10-01MAINTAINERS: erofs: complete sub-entries for erofsGao Xiang
Add a formal git tree and missing files for erofs after moving out of staging for everyone to blame in order for better improvement. Acked-by: Chao Yu <yuchao0@huawei.com> Link: https://lore.kernel.org/r/20190919062838.106423-1-gaoxiang25@huawei.com Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
2019-10-01erofs: fix return value check in erofs_read_superblock()Wei Yongjun
In case of error, the function read_mapping_page() returns ERR_PTR() not NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: fe7c2423570d ("erofs: use read_mapping_page instead of sb_bread") Reviewed-by: Gao Xiang <gaoxiang25@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20190918083033.47780-1-weiyongjun1@huawei.com Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
2019-09-30selftests: pidfd: Fix undefined reference to pthread_create()Shuah Khan
Fix build failure: undefined reference to `pthread_create' collect2: error: ld returned 1 exit status Fix CFLAGS to include pthread correctly. Fixes: 740378dc7834 ("pidfd: add polling selftests") Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20190924195237.30519-1-skhan@linuxfoundation.org Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2019-09-30sched: Add __ASSEMBLY__ guards around struct clone_argsSeth Forshee
The addition of struct clone_args to uapi/linux/sched.h is not protected by __ASSEMBLY__ guards, causing a failure to build from source for glibc on RISC-V. Add the guards to fix this. Fixes: 7f192e3cd316 ("fork: add clone3") Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Cc: <stable@vger.kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20190917071853.12385-1-seth.forshee@canonical.com Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2019-09-30arm64/ARM: configs: Change CONFIG_REMOTEPROC from m to yKeerthy
Commit 6334150e9a36 ("remoteproc: don't allow modular build") changes CONFIG_REMOTEPROC to a boolean from a tristate config option which inhibits all defconfigs marking CONFIG_REMOTEPROC as a module in compiling the remoteproc and dependent config options. So fix the configs to have CONFIG_REMOTEPROC built in. Link: https://lore.kernel.org/r/20190920075946.13282-5-j-keerthy@ti.com Fixes: 6334150e9a36 ("remoteproc: don't allow modular build") Signed-off-by: Keerthy <j-keerthy@ti.com> Acked-by: Will Deacon <will@kernel.org> [olof: Fixed up all 4 occurrances in this one commit] Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-30erspan: remove the incorrect mtu limit for erspanHaishuang Yan
erspan driver calls ether_setup(), after commit 61e84623ace3 ("net: centralize net_device min/max MTU checking"), the range of mtu is [min_mtu, max_mtu], which is [68, 1500] by default. It causes the dev mtu of the erspan device to not be greater than 1500, this limit value is not correct for ipgre tap device. Tested: Before patch: # ip link set erspan0 mtu 1600 Error: mtu greater than device maximum. After patch: # ip link set erspan0 mtu 1600 # ip -d link show erspan0 21: erspan0@NONE: <BROADCAST,MULTICAST> mtu 1600 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68 maxmtu 0 Fixes: 61e84623ace3 ("net: centralize net_device min/max MTU checking") Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30sch_cbq: validate TCA_CBQ_WRROPT to avoid crashEric Dumazet
syzbot reported a crash in cbq_normalize_quanta() caused by an out of range cl->priority. iproute2 enforces this check, but malicious users do not. kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN PTI Modules linked in: CPU: 1 PID: 26447 Comm: syz-executor.1 Not tainted 5.3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:cbq_normalize_quanta.part.0+0x1fd/0x430 net/sched/sch_cbq.c:902 RSP: 0018:ffff8801a5c333b0 EFLAGS: 00010206 RAX: 0000000020000003 RBX: 00000000fffffff8 RCX: ffffc9000712f000 RDX: 00000000000043bf RSI: ffffffff83be8962 RDI: 0000000100000018 RBP: ffff8801a5c33420 R08: 000000000000003a R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000002ef R13: ffff88018da95188 R14: dffffc0000000000 R15: 0000000000000015 FS: 00007f37d26b1700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004c7cec CR3: 00000001bcd0a006 CR4: 00000000001626f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: [<ffffffff83be9d57>] cbq_normalize_quanta include/net/pkt_sched.h:27 [inline] [<ffffffff83be9d57>] cbq_addprio net/sched/sch_cbq.c:1097 [inline] [<ffffffff83be9d57>] cbq_set_wrr+0x2d7/0x450 net/sched/sch_cbq.c:1115 [<ffffffff83bee8a7>] cbq_change_class+0x987/0x225b net/sched/sch_cbq.c:1537 [<ffffffff83b96985>] tc_ctl_tclass+0x555/0xcd0 net/sched/sch_api.c:2329 [<ffffffff83a84655>] rtnetlink_rcv_msg+0x485/0xc10 net/core/rtnetlink.c:5248 [<ffffffff83cadf0a>] netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2510 [<ffffffff83a7db6d>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5266 [<ffffffff83cac2c6>] netlink_unicast_kernel net/netlink/af_netlink.c:1324 [inline] [<ffffffff83cac2c6>] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1350 [<ffffffff83cacd4a>] netlink_sendmsg+0x89a/0xd50 net/netlink/af_netlink.c:1939 [<ffffffff8399d46e>] sock_sendmsg_nosec net/socket.c:673 [inline] [<ffffffff8399d46e>] sock_sendmsg+0x12e/0x170 net/socket.c:684 [<ffffffff8399f1fd>] ___sys_sendmsg+0x81d/0x960 net/socket.c:2359 [<ffffffff839a2d05>] __sys_sendmsg+0x105/0x1d0 net/socket.c:2397 [<ffffffff839a2df9>] SYSC_sendmsg net/socket.c:2406 [inline] [<ffffffff839a2df9>] SyS_sendmsg+0x29/0x30 net/socket.c:2404 [<ffffffff8101ccc8>] do_syscall_64+0x528/0x770 arch/x86/entry/common.c:305 [<ffffffff84400091>] entry_SYSCALL_64_after_hwframe+0x42/0xb7 Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30net: dsa: qca8k: Use up to 7 ports for all operationsMichal Vokáč
The QCA8K family supports up to 7 ports. So use the existing QCA8K_NUM_PORTS define to allocate the switch structure and limit all operations with the switch ports. This was not an issue until commit 0394a63acfe2 ("net: dsa: enable and disable all ports") disabled all unused ports. Since the unused ports 7-11 are outside of the correct register range on this switch some registers were rewritten with invalid content. Fixes: 6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family") Fixes: a0c02161ecfc ("net: dsa: variable number of ports") Fixes: 0394a63acfe2 ("net: dsa: enable and disable all ports") Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30Linux 5.4-rc1v5.4-rc1Linus Torvalds
2019-09-30Merge tag 'for-5.4-rc1-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs fixes from David Sterba: "A bunch of fixes that accumulated in recent weeks, mostly material for stable. Summary: - fix for regression from 5.3 that prevents to use balance convert with single profile - qgroup fixes: rescan race, accounting leak with multiple writers, potential leak after io failure recovery - fix for use after free in relocation (reported by KASAN) - other error handling fixups" * tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space btrfs: Fix a regression which we can't convert to SINGLE profile btrfs: relocation: fix use-after-free on dead relocation roots Btrfs: fix race setting up and completing qgroup rescan workers Btrfs: fix missing error return if writeback for extent buffer never started btrfs: adjust dirty_metadata_bytes after writeback failure of extent buffer Btrfs: fix selftests failure due to uninitialized i_mode in test inodes
2019-09-30Merge tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linuxLinus Torvalds
Pull csky updates from Guo Ren: "This round of csky subsystem just some fixups: - Fix mb() synchronization problem - Fix dma_alloc_coherent with PAGE_SO attribute - Fix cache_op failed when cross memory ZONEs - Optimize arch_sync_dma_for_cpu/device with dma_inv_range - Fix ioremap function losing - Fix arch_get_unmapped_area() implementation - Fix defer cache flush for 610 - Support kernel non-aligned access - Fix 610 vipt cache flush mechanism - Fix add zero_fp fixup perf backtrace panic - Move static keyword to the front of declaration - Fix csky_pmu.max_period assignment - Use generic free_initrd_mem() - entry: Remove unneeded need_resched() loop" * tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux: csky: Move static keyword to the front of declaration csky: entry: Remove unneeded need_resched() loop csky: Fixup csky_pmu.max_period assignment csky: Fixup add zero_fp fixup perf backtrace panic csky: Use generic free_initrd_mem() csky: Fixup 610 vipt cache flush mechanism csky: Support kernel non-aligned access csky: Fixup defer cache flush for 610 csky: Fixup arch_get_unmapped_area() implementation csky: Fixup ioremap function losing csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range csky/dma: Fixup cache_op failed when cross memory ZONEs csky: Fixup dma_alloc_coherent with PAGE_SO attribute csky: Fixup mb() synchronization problem
2019-09-30Merge tag 'armsoc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Olof Johansson: "A few fixes that have trickled in through the merge window: - Video fixes for OMAP due to panel-dpi driver removal - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7 - Fixing arch version on ASpeed ast2500 - Two fixes for reset handling on ARM SCMI" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: aspeed: ast2500 is ARMv6K reset: reset-scmi: add missing handle initialisation firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle() ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux ARM: dts: am3517-evm: Fix missing video ARM: dts: logicpd-torpedo-baseboard: Fix missing video ARM: omap2plus_defconfig: Fix missing video bus: ti-sysc: Fix handling of invalid clocks bus: ti-sysc: Fix clock handling for no-idle quirks
2019-09-30kvm: x86, powerpc: do not allow clearing largepages debugfs entryPaolo Bonzini
The largepages debugfs entry is incremented/decremented as shadow pages are created or destroyed. Clearing it will result in an underflow, which is harmless to KVM but ugly (and could be misinterpreted by tools that use debugfs information), so make this particular statistic read-only. Cc: kvm-ppc@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-09-30ARM: dts: am4372: Set memory bandwidth limit for DISPCPeter Ujfalusi
Set memory bandwidth limit to filter out resolutions above 720p@60Hz to avoid underflow errors due to the bandwidth needs of higher resolutions. am43xx can not provide enough bandwidth to DISPC to correctly handle 'high' resolutions. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-09-30Merge tag 'trace-v5.4-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "A few more tracing fixes: - Fix a buffer overflow by checking nr_args correctly in probes - Fix a warning that is reported by clang - Fix a possible memory leak in error path of filter processing - Fix the selftest that checks for failures, but wasn't failing - Minor clean up on call site output of a memory trace event" * tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: selftests/ftrace: Fix same probe error test mm, tracing: Print symbol name for call_site in trace events tracing: Have error path in predicate_parse() free its allocated memory tracing: Fix clang -Wint-in-bool-context warnings in IF_ASSIGN macro tracing/probe: Fix to check the difference of nr_args before adding probe
2019-09-30drm/tilcdc: include linux/pinctrl/consumer.h againArnd Bergmann
This was apparently dropped by accident in a recent cleanup, causing a build failure in some configurations now: drivers/gpu/drm/tilcdc/tilcdc_tfp410.c:296:12: error: implicit declaration of function 'devm_pinctrl_get_select_default' [-Werror,-Wimplicit-function-declaration] Fixes: fcb57664172e ("drm/tilcdc: drop use of drmP.h") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jyri Sarha <jsarha@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/02b03f74cf941f52a941a36bdc8dabb4a69fd87e.1569852588.git.jsarha@ti.com Acked-by: Sam Ravnborg <sam@ravnborg.org>
2019-09-30Merge tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds
Pull more MMC updates from Ulf Hansson: "A couple more updates/fixes for MMC: - sdhci-pci: Add Genesys Logic GL975x support - sdhci-tegra: Recover loss in throughput for DMA - sdhci-of-esdhc: Fix DMA bug" * tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: host: sdhci-pci: Add Genesys Logic GL975x support mmc: tegra: Implement ->set_dma_mask() mmc: sdhci: Let drivers define their DMA mask mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence mmc: sdhci: improve ADMA error reporting
2019-09-30csky: Move static keyword to the front of declarationKrzysztof Wilczynski
Move the static keyword to the front of declaration of csky_pmu_of_device_ids, and resolve the following compiler warning that can be seen when building with warnings enabled (W=1): arch/csky/kernel/perf_event.c:1340:1: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration] Signed-off-by: Krzysztof Wilczynski <kw@linux.com> Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30csky: entry: Remove unneeded need_resched() loopValentin Schneider
Since the enabling and disabling of IRQs within preempt_schedule_irq() is contained in a need_resched() loop, we don't need the outer arch code loop. Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-29Merge tag 'char-misc-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull Documentation/process update from Greg KH: "Here are two small Documentation/process/embargoed-hardware-issues.rst file updates that missed my previous char/misc pull request. The first one adds an Intel representative for the process, and the second one cleans up the text a bit more when it comes to how the disclosure rules work, as it was a bit confusing to some companies" * tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Documentation/process: Clarify disclosure rules Documentation/process: Volunteer as the ambassador for Intel
2019-09-29Merge branch 'work.misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs updates from Al Viro: "A couple of misc patches" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: afs dynroot: switch to simple_dir_operations fs/handle.c - fix up kerneldoc
2019-09-29Merge tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull more cifs updates from Steve French: "Fixes from the recent SMB3 Test events and Storage Developer Conference (held the last two weeks). Here are nine smb3 patches including an important patch for debugging traces with wireshark, with three patches marked for stable. Additional fixes from last week to better handle some newly discovered reparse points, and a fix the create/mkdir path for setting the mode more atomically (in SMB3 Create security descriptor context), and one for path name processing are still being tested so are not included here" * tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Fix oplock handling for SMB 2.1+ protocols smb3: missing ACL related flags smb3: pass mode bits into create calls smb3: Add missing reparse tags CIFS: fix max ea value size fs/cifs/sess.c: Remove set but not used variable 'capabilities' fs/cifs/smb2pdu.c: Make SMB2_notify_init static smb3: fix leak in "open on server" perf counter smb3: allow decryption keys to be dumped by admin for debugging
2019-09-30csky: Fixup csky_pmu.max_period assignmentMao Han
The csky_pmu.max_period has type u64, and BIT() can only return 32 bits unsigned long on C-SKY. The initialization for max_period will be incorrect when count_width is bigger than 32. Use BIT_ULL() Signed-off-by: Mao Han <han_mao@c-sky.com> Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-09-30csky: Fixup add zero_fp fixup perf backtrace panicGuo Ren
We need set fp zero to let backtrace know the end. The patch fixup perf callchain panic problem, because backtrace didn't know what is the end of fp. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reported-by: Mao Han <han_mao@c-sky.com>
2019-09-30csky: Use generic free_initrd_mem()Mike Rapoport
The csky implementation of free_initrd_mem() is an open-coded version of free_reserved_area() without poisoning. Remove it and make csky use the generic version of free_initrd_mem(). Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-29Merge branch 'entropy'Linus Torvalds
Merge active entropy generation updates. This is admittedly partly "for discussion". We need to have a way forward for the boot time deadlocks where user space ends up waiting for more entropy, but no entropy is forthcoming because the system is entirely idle just waiting for something to happen. While this was triggered by what is arguably a user space bug with GDM/gnome-session asking for secure randomness during early boot, when they didn't even need any such truly secure thing, the issue ends up being that our "getrandom()" interface is prone to that kind of confusion, because people don't think very hard about whether they want to block for sufficient amounts of entropy. The approach here-in is to decide to not just passively wait for entropy to happen, but to start actively collecting it if it is missing. This is not necessarily always possible, but if the architecture has a CPU cycle counter, there is a fair amount of noise in the exact timings of reasonably complex loads. We may end up tweaking the load and the entropy estimates, but this should be at least a reasonable starting point. As part of this, we also revert the revert of the ext4 IO pattern improvement that ended up triggering the reported lack of external entropy. * getrandom() active entropy waiting: Revert "Revert "ext4: make __ext4_get_inode_loc plug"" random: try to actively add entropy rather than passively wait for it
2019-09-29Revert "Revert "ext4: make __ext4_get_inode_loc plug""Linus Torvalds
This reverts commit 72dbcf72156641fde4d8ea401e977341bfd35a05. Instead of waiting forever for entropy that may just not happen, we now try to actively generate entropy when required, and are thus hopefully avoiding the problem that caused the nice ext4 IO pattern fix to be reverted. So revert the revert. Cc: Ahmed S. Darwish <darwish.07@gmail.com> Cc: Ted Ts'o <tytso@mit.edu> Cc: Willy Tarreau <w@1wt.eu> Cc: Alexander E. Patrakov <patrakov@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-29random: try to actively add entropy rather than passively wait for itLinus Torvalds
For 5.3 we had to revert a nice ext4 IO pattern improvement, because it caused a bootup regression due to lack of entropy at bootup together with arguably broken user space that was asking for secure random numbers when it really didn't need to. See commit 72dbcf721566 (Revert "ext4: make __ext4_get_inode_loc plug"). This aims to solve the issue by actively generating entropy noise using the CPU cycle counter when waiting for the random number generator to initialize. This only works when you have a high-frequency time stamp counter available, but that's the case on all modern x86 CPU's, and on most other modern CPU's too. What we do is to generate jitter entropy from the CPU cycle counter under a somewhat complex load: calling the scheduler while also guaranteeing a certain amount of timing noise by also triggering a timer. I'm sure we can tweak this, and that people will want to look at other alternatives, but there's been a number of papers written on jitter entropy, and this should really be fairly conservative by crediting one bit of entropy for every timer-induced jump in the cycle counter. Not because the timer itself would be all that unpredictable, but because the interaction between the timer and the loop is going to be. Even if (and perhaps particularly if) the timer actually happens on another CPU, the cacheline interaction between the loop that reads the cycle counter and the timer itself firing is going to add perturbations to the cycle counter values that get mixed into the entropy pool. As Thomas pointed out, with a modern out-of-order CPU, even quite simple loops show a fair amount of hard-to-predict timing variability even in the absense of external interrupts. But this tries to take that further by actually having a fairly complex interaction. This is not going to solve the entropy issue for architectures that have no CPU cycle counter, but it's not clear how (and if) that is solvable, and the hardware in question is largely starting to be irrelevant. And by doing this we can at least avoid some of the even more contentious approaches (like making the entropy waiting time out in order to avoid the possibly unbounded waiting). Cc: Ahmed Darwish <darwish.07@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Nicholas Mc Guire <hofrat@opentech.at> Cc: Andy Lutomirski <luto@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Willy Tarreau <w@1wt.eu> Cc: Alexander E. Patrakov <patrakov@gmail.com> Cc: Lennart Poettering <mzxreary@0pointer.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-29Merge tag 'fixes-5.4-merge-window' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes Fixes for omap variants Few fixes for ti-sysc interconnect target module driver for no-idle quirks that caused nfsroot to fail on some dra7 boards. And let's fixes to get LCD working again for logicpd board that got broken a while back with removal of panel-dpi driver. We need to now use generic CONFIG_DRM_PANEL_SIMPLE instead. * tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle() ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux ARM: dts: am3517-evm: Fix missing video ARM: dts: logicpd-torpedo-baseboard: Fix missing video ARM: omap2plus_defconfig: Fix missing video bus: ti-sysc: Fix handling of invalid clocks bus: ti-sysc: Fix clock handling for no-idle quirks Link: https://lore.kernel.org/r/pull-1568819401-72461@atomide.com Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-29Merge tag 'scmi-fixes-5.4' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes ARM SCMI fixes for v5.4 Couple of fixes: one in scmi reset driver initialising missed scmi handle and an other in scmi reset API implementation fixing the assignment of reset state * tag 'scmi-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: reset: reset-scmi: add missing handle initialisation firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset Link: https://lore.kernel.org/r/20190918142139.GA4370@bogus Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-29Merge tag 'libnvdimm-fixes-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm More libnvdimm updates from Dan Williams: - Complete the reworks to interoperate with powerpc dynamic huge page sizes - Fix a crash due to missed accounting for the powerpc 'struct page'-memmap mapping granularity - Fix badblock initialization for volatile (DRAM emulated) pmem ranges - Stop triggering request_key() notifications to userspace when NVDIMM-security is disabled / not present - Miscellaneous small fixups * tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: libnvdimm/region: Enable MAP_SYNC for volatile regions libnvdimm: prevent nvdimm from requesting key when security is disabled libnvdimm/region: Initialize bad block for volatile namespaces libnvdimm/nfit_test: Fix acpi_handle redefinition libnvdimm/altmap: Track namespace boundaries in altmap libnvdimm: Fix endian conversion issues  libnvdimm/dax: Pick the right alignment default when creating dax devices powerpc/book3s64: Export has_transparent_hugepage() related functions.
2019-09-29Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal Pull thermal SoC updates from Eduardo Valentin: "This is a really small pull in the midst of a lot of pending patches. We are in the middle of restructuring how we are maintaining the thermal subsystem, as per discussion in our last LPC. For now, I am sending just some changes that were pending in my tree. Looking forward to get a more streamlined process in the next merge window" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: thermal: db8500: Rewrite to be a pure OF sensor thermal: db8500: Use dev helper variable thermal: db8500: Finalize device tree conversion thermal: thermal_mmio: remove some dead code
2019-09-29Merge branch 'i2c/for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull more i2c updates from Wolfram Sang: - make Lenovo Yoga C630 boot now that the dependencies are merged - restore BlockProcessCall for i801, accidently removed in this merge window - a bugfix for the riic driver - an improvement to the slave-eeprom driver which should have been in the first pull request but sadly got lost in the process * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: slave-eeprom: Add read only mode i2c: i801: Bring back Block Process Call support for certain platforms i2c: riic: Clear NACK in tend isr i2c: qcom-geni: Disable DMA processing on the Lenovo Yoga C630
2019-09-29Merge tag 'iommu-fixes-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: "A couple of fixes for the AMD IOMMU driver have piled up: - Some fixes for the reworked IO page-table which caused memory leaks or did not allow to downgrade mappings under some conditions. - Locking fixes to fix a couple of possible races around accessing 'struct protection_domain'. The races got introduced when the dma-ops path became lock-less in the fast-path" * tag 'iommu-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Lock code paths traversing protection_domain->dev_list iommu/amd: Lock dev_data in attach/detach code paths iommu/amd: Check for busy devices earlier in attach_device() iommu/amd: Take domain->lock for complete attach/detach path iommu/amd: Remove amd_iommu_devtable_lock iommu/amd: Remove domain->updated iommu/amd: Wait for completion of IOTLB flush in attach_device iommu/amd: Unmap all L7 PTEs when downgrading page-sizes iommu/amd: Introduce first_pte_l7() helper iommu/amd: Fix downgrading default page-sizes in alloc_pte() iommu/amd: Fix pages leak in free_pagetable()
2019-09-29Documentation/process: Clarify disclosure rulesThomas Gleixner
The role of the contact list provided by the disclosing party and how it affects the disclosure process and the ability to include experts into the development process is not really well explained. Neither is it entirely clear when the disclosing party will be informed about the fact that a developer who is not covered by an employer NDA needs to be brought in and disclosed. Explain the role of the contact list and the information policy along with an eventual conflict resolution better. Reported-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/r/alpine.DEB.2.21.1909251028390.10825@nanos.tec.linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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