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This test uses waking+wakeup_latency as an event name, which doesn't
make sense since it includes an operator. Illegal names are now
detected by the synthetic event command parsing, which causes this
test to fail. Change the name to 'waking_plus_wakeup_latency' to
prevent this.
Link: https://lkml.kernel.org/r/a1ee2f76ff28ef7166fb788ca8be968887808920.1602598160.git.zanussi@kernel.org
Fixes: f06eec4d0f2c (selftests: ftrace: Add inter-event hist triggers testcases)
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Add support for synthetic event error logging, which entails adding a
logging function for it, a way to save the synthetic event command,
and a set of specific synthetic event parse error strings and
handling.
Link: https://lkml.kernel.org/r/ed099c66df13b40cfc633aaeb17f66c37a923066.1602598160.git.zanussi@kernel.org
[ <rostedt@goodmis.org>: wrote save_cmdstr() seq_buf implementation. ]
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Call the is_good_name() function used by probe events to make sure
synthetic event and field names don't contain illegal characters and
cause unexpected parsing of synthetic event commands.
Link: https://lkml.kernel.org/r/c4d4bb59d3ac39bcbd70fba0cf837d6b1cedb015.1602598160.git.zanussi@kernel.org
Fixes: 4b147936fa50 (tracing: Add support for 'synthetic' events)
Reported-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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is_good_name() is useful for other trace infrastructure, such as
synthetic events, so make it available via trace.h.
Link: https://lkml.kernel.org/r/cc6d6a2d7da6957fcbe1e2922e76d18d2bb459b4.1602598160.git.zanussi@kernel.org
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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For synthetic event dynamic fields, the type contains "__data_loc",
which is basically an internal part of the type which is only meant to
be displayed in the format, not in the event description itself, which
is confusing to users since they can't use __data_loc on the
command-line to define an event field, which printing it would lead
them to believe.
So filter it out from the description, while leaving it in the type.
Link: https://lkml.kernel.org/r/b3b7baf7813298a5ede4ff02e2e837b91c05a724.1602598160.git.zanussi@kernel.org
Reported-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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s/wihin/within/
s/retrieven/retrieved/
s/suppport/support/
s/wil/will/
s/accidently/accidentally/
s/if the if the/if the/
Link: https://lkml.kernel.org/r/20201010140924.3809-1-hqjagain@gmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Add ftrace.instance.*.alloc_snapshot option.
This option has been described in Documentation/trace/boottime-trace.rst
but not implemented yet.
ftrace.[instance.INSTANCE.]alloc_snapshot
Allocate snapshot buffer.
The difference from kernel.alloc_snapshot is that the kernel.alloc_snapshot
will allocate the buffer only for the main instance, but this can allocate
buffer for any new instances.
Link: https://lkml.kernel.org/r/160234368948.400560.15313384470765915015.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Below race can come, if trace_open and resize of
cpu buffer is running parallely on different cpus
CPUX CPUY
ring_buffer_resize
atomic_read(&buffer->resize_disabled)
tracing_open
tracing_reset_online_cpus
ring_buffer_reset_cpu
rb_reset_cpu
rb_update_pages
remove/insert pages
resetting pointer
This race can cause data abort or some times infinte loop in
rb_remove_pages and rb_insert_pages while checking pages
for sanity.
Take buffer lock to fix this.
Link: https://lkml.kernel.org/r/1601976833-24377-1-git-send-email-gkohli@codeaurora.org
Cc: stable@vger.kernel.org
Fixes: b23d7a5f4a07a ("ring-buffer: speed up buffer resets by avoiding synchronize_rcu for each CPU")
Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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After having a typo for writing a histogram trigger.
Wrote:
echo 'hist:key=pid:ts=common_timestamp.usec' > events/sched/sched_waking/trigger
Instead of:
echo 'hist:key=pid:ts=common_timestamp.usecs' > events/sched/sched_waking/trigger
and the following crash happened:
BUG: kernel NULL pointer dereference, address: 0000000000000008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 4 PID: 1641 Comm: sh Not tainted 5.9.0-rc5-test+ #549
Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03 07/14/2016
RIP: 0010:event_hist_trigger_func+0x70b/0x1ee0
Code: 24 08 89 d5 49 89 cc e9 8c 00 00 00 4c 89 f2 41 b9 00 10 00 00 4c 89 e1 44 89 ee 4c 89 ff e8 dc d3 ff ff 45 89 ea 4b 8b 14 d7 <f6> 42 08 04 74 17 41 8b 8f c0 00 00 00 8d 71 01 41 89 b7 c0 00 00
RSP: 0018:ffff959213d53db0 EFLAGS: 00010202
RAX: ffffffffffffffea RBX: 0000000000000000 RCX: 0000000000084c04
RDX: 0000000000000000 RSI: df7326aefebd174c RDI: 0000000000031080
RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000046 R12: ffff959211dcf690
R13: 0000000000000001 R14: ffff95925a36e370 R15: ffff959251c89800
FS: 00007fb9ea934740(0000) GS:ffff95925ab00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 00000000c976c005 CR4: 00000000001706e0
Call Trace:
? trigger_process_regex+0x78/0x110
trigger_process_regex+0xc5/0x110
event_trigger_write+0x71/0xd0
vfs_write+0xca/0x210
ksys_write+0x70/0xf0
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fb9eaa29487
Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
This was caused by accessing the hlist_data fields after the call to
__create_val_fields() without checking if the creation succeed.
Link: https://lkml.kernel.org/r/20201013154852.3abd8702@gandalf.local.home
Fixes: 63a1e5de3006 ("tracing: Save normal string variables")
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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The 64-bit JEQ/JNE handling in reg_set_min_max() was clearing reg->id in either
true or false branch. In the case 'if (reg->id)' check was done on the other
branch the counter part register would have reg->id == 0 when called into
find_equal_scalars(). In such case the helper would incorrectly identify other
registers with id == 0 as equivalent and propagate the state incorrectly.
Fix it by preserving ID across reg_set_min_max().
In other words any kind of comparison operator on the scalar register
should preserve its ID to recognize:
r1 = r2
if (r1 == 20) {
#1 here both r1 and r2 == 20
} else if (r2 < 20) {
#2 here both r1 and r2 < 20
}
The patch is addressing #1 case. The #2 was working correctly already.
Fixes: 75748837b7e5 ("bpf: Propagate scalar ranges through register assignments.")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Tested-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20201014175608.1416-1-alexei.starovoitov@gmail.com
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Fix the loss of transmission of a call's final ack when a socket gets shut
down. This means that the server will retransmit the last data packet or
send a ping ack and then get an ICMP indicating the port got closed. The
server will then view this as a failure.
Fixes: 3136ef49a14c ("rxrpc: Delay terminal ACK transmission on a client call")
Signed-off-by: David Howells <dhowells@redhat.com>
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Fix rxrpc_unbundle_conn() to not drop the bundle usage count when cleaning
up an exclusive connection.
Based on the suggested fix from Hillf Danton.
Fixes: 245500d853e9 ("rxrpc: Rewrite the client connection manager")
Reported-by: syzbot+d57aaf84dd8a550e6d91@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Hillf Danton <hdanton@sina.com>
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This is a major rework of the sticon (parisc text console) driver in
order to support user font support.
Usually one want to use the stifb (parisc framebuffer driver) which is
based on fbcon and does support fonts and colors, but some old machines
(e.g. HP 730 workstations) don't provide a supported stifb graphic card,
and for those user fonts are preferred.
This patch drops unused code for software cursor and scrollback,
enhances the debug output and adds better documentation.
The code was tested on various machines with byte-mode and word-mode
graphic cards on GSC- and PCI-busses.
Signed-off-by: Helge Deller <deller@gmx.de>
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If the ROM provides functional STI routines, always register the sticon
driver, even if the serial console was choosen as boot device.
Additionally, in that case, do not make the sticon driver the default
output console device.
Signed-off-by: Helge Deller <deller@gmx.de>
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We will not allow unitialized anon mmaps, but we need this define
to prevent build errors, e.g. the debian foot package.
Suggested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Use READ_ONCE() to check if spinlock is locked.
The other changes are cleanups.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Tested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Increase the number of lws locks to 256 entries (instead of 16) and
choose lock entry based on bits 3-11 (instead of 4-7) of the relevant
address. With this change we archieve more fine-grained locking in
futex syscalls and thus reduce the number of possible stalls.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Let the complier treat the pointers volatile to ensure that they get
accessed atomicly.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Correct the comments: The jump is forwards, not backwards.
Enable the interrupts after %r29 (reference param area) was loaded.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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This change allows the sync barrier instruction to be patched to a nop.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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The kernel test robot reports missing functions. Add them.
hppa-linux-ld: drivers/firmware/arm_scmi/perf.o: in function `scmi_perf_fc_ring_db':
(.text+0x610): undefined reference to `ioread64_hi_lo'
(.text+0x63c): undefined reference to `iowrite64_hi_lo'
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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Enable libata support for the Nat Semi NS87415 controller, and
disable the soon to be removed legacy ide driver entirely.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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Signed-off-by: Helge Deller <deller@gmx.de>
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HPUX has separate NDELAY & NONBLOCK values. In the past we wanted to
be able to run HP-UX binaries natively on parisc Linux which is why
we defined O_NONBLOCK to 000200004 to distinguish NDELAY & NONBLOCK
bits.
But with 2 bits set in this bitmask we often ran into compatibility
issues with other Linux applications which often only test one bit (or
even compare the values).
To avoid such issues in the future, this patch changes O_NONBLOCK to
become 000200000. That way old programs will still be functional, and
for new programs we now have only one bit set.
Update the comment about SOCK_NONBLOCK too.
Signed-off-by: Helge Deller <deller@gmx.de>
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Those flags are nowhere used in the Linux kernel and were added when we
still wanted to support HP-UX in a compat mode. Since we never will
support HP-UX, drop those flags.
Signed-off-by: Helge Deller <deller@gmx.de>
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No need to allow external interrupts when the IPI loop is going to
finish now.
Signed-off-by: Helge Deller <deller@gmx.de>
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When running on qemu, SeaBIOS-hppa stores the iomem address for the
emulated fw_cfg port in PAGE0_>pad0[2/3]. Let the Linux driver
auto-configure the fw_cfg interface with it, so that the fw_cfg info
shows up in /sys/firmware/qemu_fw_cfg.
Signed-off-by: Helge Deller <deller@gmx.de>
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Signed-off-by: Helge Deller <deller@gmx.de>
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This definition is used by the iptables legacy UAPI, restore it.
Fixes: d3519cb89f6d ("netfilter: nf_tables: add inet ingress support")
Reported-by: Jason A. Donenfeld <Jason@zx2c4.com>
Tested-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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David Wilder says:
====================
ibmveth gso fix
The ibmveth driver is a virtual Ethernet driver used on IBM pSeries systems.
Gso packets can be sent between LPARS (virtual hosts) without segmentation,
by flagging gso packets using one of two methods depending on the firmware
version. Some gso packet were not correctly identified by the receiver.
This patch-set corrects this issue.
V2:
- Added fix tags.
- Byteswap the constant at compilation time.
- Updated the commit message to clarify what frame validation is performed
by the hypervisor.
====================
Link: https://lore.kernel.org/r/20201013232014.26044-1-dwilder@us.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Ingress large send packets are identified by either:
The IBMVETH_RXQ_LRG_PKT flag in the receive buffer
or with a -1 placed in the ip header checksum.
The method used depends on firmware version. Frame
geometry and sufficient header validation is performed by the
hypervisor eliminating the need for further header checks here.
Fixes: 7b5967389f5a ("ibmveth: set correct gso_size and gso_type")
Signed-off-by: David Wilder <dwilder@us.ibm.com>
Reviewed-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Reviewed-by: Cristobal Forno <cris.forno@ibm.com>
Reviewed-by: Pradeep Satyanarayana <pradeeps@linux.vnet.ibm.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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ibmveth_rx_csum_helper() must be called after ibmveth_rx_mss_helper()
as ibmveth_rx_csum_helper() may alter ip and tcp checksum values.
Fixes: 66aa0678efc2 ("ibmveth: Support to enable LSO/CSO for Trunk VEA.")
Signed-off-by: David Wilder <dwilder@us.ibm.com>
Reviewed-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Reviewed-by: Cristobal Forno <cris.forno@ibm.com>
Reviewed-by: Pradeep Satyanarayana <pradeeps@linux.vnet.ibm.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 4-tuple NAT offload via PEDIT always overwrites all the 4-tuple
fields even if they had not been explicitly enabled. If any fields in
the 4-tuple are not enabled, then the hardware overwrites the
disabled fields with zeros, instead of ignoring them.
So, add a parser that can translate the enabled 4-tuple PEDIT fields
to one of the NAT mode combinations supported by the hardware and
hence avoid overwriting disabled fields to 0. Any rule with
unsupported NAT mode combination is rejected.
Signed-off-by: Herat Ramani <herat@chelsio.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Mathieu Desnoyers says:
====================
l3mdev icmp error route lookup fixes
Here is a series of fixes for ipv4 and ipv6 which ensure the route
lookup is performed on the right routing table in VRF configurations
when sending TTL expired icmp errors (useful for traceroute).
It includes tests for both ipv4 and ipv6.
These fixes address specifically address the code paths involved in
sending TTL expired icmp errors. As detailed in the individual commit
messages, those fixes do not address similar icmp errors related to
network namespaces and unreachable / fragmentation needed messages,
which appear to use different code paths.
====================
Link: https://lore.kernel.org/r/20201012145016.2023-1-mathieu.desnoyers@efficios.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The objective of the tests is to check that ICMP errors generated while
crossing between VRFs are properly routed back to the source host.
The first ttl test sends a ping with a ttl of 1 from h1 to h2 and parses the
output of the command to check that a ttl expired error is received.
The second ttl test runs traceroute from h1 to h2 and parses the output to
check for a hop on r1.
The mtu test sends a ping with a payload of 1450 from h1 to h2, through
r1 which has an interface with a mtu of 1400 and parses the output of the
command to check that a fragmentation needed error is received.
[ The IPv6 MTU test still fails with the symmetric routing setup. It
appears to be caused by source address selection picking ::1. Fixing
this is beyond the scope of this series. ]
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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table (v2)
As per RFC4443, the destination address field for ICMPv6 error messages
is copied from the source address field of the invoking packet.
In configurations with Virtual Routing and Forwarding tables, looking up
which routing table to use for sending ICMPv6 error messages is
currently done by using the destination net_device.
If the source and destination interfaces are within separate VRFs, or
one in the global routing table and the other in a VRF, looking up the
source address of the invoking packet in the destination interface's
routing table will fail if the destination interface's routing table
contains no route to the invoking packet's source address.
One observable effect of this issue is that traceroute6 does not work in
the following cases:
- Route leaking between global routing table and VRF
- Route leaking between VRFs
Use the source device routing table when sending ICMPv6 error
messages.
[ In the context of ipv4, it has been pointed out that a similar issue
may exist with ICMP errors triggered when forwarding between network
namespaces. It would be worthwhile to investigate whether ipv6 has
similar issues, but is outside of the scope of this investigation. ]
[ Testing shows that similar issues exist with ipv6 unreachable /
fragmentation needed messages. However, investigation of this
additional failure mode is beyond this investigation's scope. ]
Link: https://tools.ietf.org/html/rfc4443
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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table (v2)
As per RFC792, ICMP errors should be sent to the source host.
However, in configurations with Virtual Routing and Forwarding tables,
looking up which routing table to use is currently done by using the
destination net_device.
commit 9d1a6c4ea43e ("net: icmp_route_lookup should use rt dev to
determine L3 domain") changes the interface passed to
l3mdev_master_ifindex() and inet_addr_type_dev_table() from skb_in->dev
to skb_dst(skb_in)->dev. This effectively uses the destination device
rather than the source device for choosing which routing table should be
used to lookup where to send the ICMP error.
Therefore, if the source and destination interfaces are within separate
VRFs, or one in the global routing table and the other in a VRF, looking
up the source host in the destination interface's routing table will
fail if the destination interface's routing table contains no route to
the source host.
One observable effect of this issue is that traceroute does not work in
the following cases:
- Route leaking between global routing table and VRF
- Route leaking between VRFs
Preferably use the source device routing table when sending ICMP error
messages. If no source device is set, fall-back on the destination
device routing table. Else, use the main routing table (index 0).
[ It has been pointed out that a similar issue may exist with ICMP
errors triggered when forwarding between network namespaces. It would
be worthwhile to investigate, but is outside of the scope of this
investigation. ]
[ It has also been pointed out that a similar issue exists with
unreachable / fragmentation needed messages, which can be triggered by
changing the MTU of eth1 in r1 to 1400 and running:
ip netns exec h1 ping -s 1450 -Mdo -c1 172.16.2.2
Some investigation points to raw_icmp_error() and raw_err() as being
involved in this last scenario. The focus of this patch is TTL expired
ICMP messages, which go through icmp_route_lookup.
Investigation of failure modes related to raw_icmp_error() is beyond
this investigation's scope. ]
Fixes: 9d1a6c4ea43e ("net: icmp_route_lookup should use rt dev to determine L3 domain")
Link: https://tools.ietf.org/html/rfc792
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX updates from Greg KH:
"Here are some SPDX-specific changes for 5.10-rc1.
They include:
- driver fixes to make spdxcheck.pl work properly
- add GFDL licenses as "deprecated" but required due to some of our
documentation using them
- add Zlib license as "deprecated" but required because we have code
with this license in the tree.
- convert some drivers to have SPDX identifiers that previously
didn't have them.
All have been in linux-next for a very long time with no reported
issues"
* tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
scripts/spdxcheck.py: handle license identifiers in XML comments
net/mlx5: IPsec: make spdxcheck.py happy
LICENSES/deprecated: add Zlib license text
LICENSE: add GFDL deprecated licenses
net/qla3xxx: Convert to SPDX license identifiers
net/qlge: Convert to SPDX license identifiers
net/qlcnic: Convert to SPDX license identifiers
scsi/qla2xxx: Convert to SPDX license identifiers
scsi/qla4xxx: Convert to SPDX license identifiers
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the "big" set of driver core patches for 5.10-rc1
They include a lot of different things, all related to the driver core
and/or some driver logic:
- sysfs common write functions to make it easier to audit sysfs
attributes
- device connection cleanups and fixes
- devm helpers for a few functions
- NOIO allocations for when devices are being removed
- minor cleanups and fixes
All have been in linux-next for a while with no reported issues"
* tag 'driver-core-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits)
regmap: debugfs: use semicolons rather than commas to separate statements
platform/x86: intel_pmc_core: do not create a static struct device
drivers core: node: Use a more typical macro definition style for ACCESS_ATTR
drivers core: Use sysfs_emit for shared_cpu_map_show and shared_cpu_list_show
mm: and drivers core: Convert hugetlb_report_node_meminfo to sysfs_emit
drivers core: Miscellaneous changes for sysfs_emit
drivers core: Reindent a couple uses around sysfs_emit
drivers core: Remove strcat uses around sysfs_emit and neaten
drivers core: Use sysfs_emit and sysfs_emit_at for show(device *...) functions
sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
dyndbg: use keyword, arg varnames for query term pairs
driver core: force NOIO allocations during unplug
platform_device: switch to simpler IDA interface
driver core: platform: Document return type of more functions
Revert "driver core: Annotate dev_err_probe() with __must_check"
Revert "test_firmware: Test platform fw loading on non-EFI systems"
iio: adc: xilinx-xadc: use devm_krealloc()
hwmon: pmbus: use more devres helpers
devres: provide devm_krealloc()
syscore: Use pm_pr_dbg() for syscore_{suspend,resume}()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial updates from Greg KH:
"Here is the big set of tty and serial driver patches for 5.10-rc1.
Lots of little things in here, including:
- tasklet_setup api conversions
- sysrq support for capital letters
- vt and vc cleanups and unwinding the mess some more
- serial driver updates and minor tweaks
- new device ids
- rs485 support for some drivers
- serial binding documentation updates
- lots of small serial driver changes for reported issues
All have been in linux-next for a while with no reported issues"
* tag 'tty-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (79 commits)
serial: mcf: add sysrq capability
serial: fsl_lpuart: add sysrq support when using dma
fbcon: remove no-op fbcon_set_origin()
tty/sysrq: Extend the sysrq_key_table to cover capital letters
serial: max310x: rework RX interrupt handling
serial: 8250_dw: Fix clk-notifier/port suspend deadlock
serial: 8250: Skip uninitialized TTY port baud rate update
serial: 8250: Discard RTS/DTS setting from clock update method
tty: serial: imx: disable TXDC IRQ in imx_uart_shutdown() to avoid IRQ storm
serial: 8250_fsl: Fix TX interrupt handling condition
serial: pl011: Fix lockdep splat when handling magic-sysrq interrupt
tty: serial: fsl_lpuart: fix lpuart32_poll_get_char
tty: serial: lpuart: fix lpuart32_write usage
serial: qcom_geni_serial: To correct QUP Version detection logic
serial: mvebu-uart: fix unused variable warning
vt_ioctl: make VT_RESIZEX behave like VT_RESIZE
serial: mvebu-uart: simplify the return expression of mvebu_uart_probe()
tty: serial: imx: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n
tty: hvc: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n
pch_uart: drop double zeroing
...
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epilogue
A recent change to the checksum code removed usage of some extra
arguments, alongside with storage on the stack for those, and the stack
pointer no longer needed to be adjusted in the function prologue.
But a left over subtraction wasn't removed in the function epilogue,
causing the function to return with the stack pointer moved 16 bytes
away from where it should have. This corrupted local state and lead to
weird crashes.
This simply removes the leftover instruction from the epilogue.
Fixes: 70d65cd555c5 ("ppc: propagate the calling conventions change down to csum_partial_copy_generic()")
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Drivers:
- Add support for KTD253
Fix-ups:
- Add Device Tree documentation; common, kinetic,ktd253
- Use correct header(s); tosa_lcd, tosa_bl
Bug Fixes:
- Fix refcount imbalance; sky81452-backlight"
* tag 'backlight-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: tosa_bl: Include the right header
backlight: tosa_lcd: Include the right header
backlight: Add Kinetic KTD253 backlight driver
dt-bindings: backlight: Add Kinetic KTD253 bindings
dt-bindings: backlight: Add some common backlight properties
backlight: sky81452-backlight: Fix refcount imbalance on error
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Add support for initialising shared (between children) Regmaps
- Add support for Kontron SL28CPLD
- Add support for ENE KB3930 Embedded Controller
- Add support for Intel FPGA PAC MAX 10 BMC
New Device Support:
- Add support for Power to Ricoh RN5T618
- Add support for UART to Intel Lakefield
- Add support for LP87524_Q1 to Texas Instruments LP87565
New Functionality:
- Device Tree; ene-kb3930, sl28cpld, syscon, lp87565, lp87524-q1
- Use new helper dev_err_probe(); madera-core, stmfx, wcd934x
- Use new GPIOD API; dm355evm_msp
- Add wake-up capability; sprd-sc27xx-spi
- Add ACPI support; kempld-core
Fix-ups:
- Trivial (spelling/whitespace); Kconfig, ab8500
- Fix for unused variables; khadas-mcu, kempld-core
- Remove unused header file(s); mt6360-core
- Use correct IRQ flags in docs; act8945a, gateworks-gsc, rohm,bd70528-pmic
- Add COMPILE_TEST support; asic3, tmio_core
- Add dependency on I2C; SL28CPLD
Bug Fixes:
- Fix memory leak(s); sm501
- Do not free regmap_config's 'name' until exit; syscon"
* tag 'mfd-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (34 commits)
mfd: kempld-core: Fix unused variable 'kempld_acpi_table' when !ACPI
mfd: sl28cpld: Depend on I2C
mfd: asic3: Build if COMPILE_TEST=y
dt-bindings: mfd: Correct interrupt flags in examples
mfd: Add ACPI support to Kontron PLD driver
mfd: intel-m10-bmc: Add Intel MAX 10 BMC chip support for Intel FPGA PAC
mfd: lp87565: Add LP87524-Q1 variant
dt-bindings: mfd: Add LP87524-Q1
dt-bindings: mfd: lp87565: Convert to yaml
mfd: mt6360: Remove unused include <linux/version.h>
mfd: sm501: Fix leaks in probe()
mfd: syscon: Don't free allocated name for regmap_config
dt-bindings: mfd: syscon: Document Exynos3 and Exynos5433 compatibles
dt-bindings: mfd: syscon: Merge Samsung Exynos Sysreg bindings
dt-bindings: mfd: ab8500: Remove weird Unicode characters
mfd: sprd: Add wakeup capability for PMIC IRQ
mfd: intel-lpss: Add device IDs for UART ports for Lakefield
mfd: dm355evm_msp: Convert LEDs to GPIO descriptor table
mfd: wcd934x: Simplify with dev_err_probe()
mfd: stmfx: Simplify with dev_err_probe()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Update dtc to upstream version v1.6.0-31-gcbca977ea121
- dtx_diff help text reformatting
- Speed-up validation time for binding and dtb checks using json for
intermediate files
- Add support for running yamllint on DT schema files
- Remove old booting-without-of.rst
- Extend the example schema to address common issues
- Cleanup handling of additionalProperties/unevaluatedProperties
- Ensure all DSI controller schemas reference dsi-controller.yaml
- Vendor prefixes for Zealz, Wandbord/Technexion, Embest RIoT, Rex,
DFI, and Cisco Meraki
- Convert at25, SPMI bus, TI hwlock, HiSilicon Hi3660 USB3 PHY, Arm
SP805 watchdog, Arm SP804, and Samsung 11-pin USB connector to DT
schema
- Convert HiSilicon SoC and syscon bindings to DT schema
- Convert SiFive Risc-V L2 cache, PLIC, PRCI, and PWM to DT schema
- Convert i.MX bindings for w1, crypto, rng, SIM, PM, DDR, SATA, vf610
GPIO, and UART to DT schema
- Add i.MX 8M compatible strings
- Add LM81 and DS1780 as trivial devices
- Various missing properties added to fix dtb validation warnings
* tag 'devicetree-for-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (111 commits)
dt-bindings: misc: explicitly add #address-cells for slave mode
spi: dt-bindings: spi-controller: explicitly require #address-cells=<0> for slave mode
dt: Remove booting-without-of.rst
dt-bindings: update usb-c-connector example
dt-bindings: arm: hisilicon: add missing properties into cpuctrl.yaml
dt-bindings: arm: hisilicon: add missing properties into sysctrl.yaml
dt-bindings: pwm: imx: document i.MX compatibles
scripts/dtc: Update to upstream version v1.6.0-31-gcbca977ea121
dt-bindings: Add running yamllint to dt_binding_check
dt-bindings: powerpc: Add a schema for the 'sleep' property
dt-bindings: pinctrl: sirf: Fix typo abitrary
dt-bindings: pinctrl: qcom: Fix typo abitrary
dt-bindings: Explicitly allow additional properties in common schemas
dt-bindings: Use 'additionalProperties' instead of 'unevaluatedProperties'
dt-bindings: Add missing 'unevaluatedProperties'
Docs: Fixing spelling errors in Documentation/devicetree/bindings/
dt-bindings: arm: hisilicon: convert Hi6220 domain controller bindings to json-schema
dt-bindings: riscv: convert pwm bindings to json-schema
dt-bindings: riscv: convert plic bindings to json-schema
dt-bindings: fu540: prci: convert PRCI bindings to json-schema
...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"Core changes:
- NONE whatsoever, we don't even touch the core files this time
around.
New drivers:
- New driver for the Toshiba Visconti SoC.
- New subdriver for the Qualcomm MSM8226 SoC.
- New subdriver for the Actions Semiconductor S500 SoC.
- New subdriver for the Mediatek MT8192 SoC.
- New subdriver for the Microchip SAMA7G5 SoC.
Driver enhancements:
- Intel Cherryview and Baytrail cleanups and refactorings.
- Enhanced support for the Renesas R8A7790, more pins and groups.
- Some optimizations for the MCP23S08 MCP23x17 variant.
- Some cleanups around the Actions Semiconductor subdrivers.
- A bunch of cleanups around the SH-PFC and Emma Mobile drivers.
- The "SH-PFC" (literally SuperH pin function controller, I think)
subdirectory is now renamed to the more neutral "renesas", as these
are not very much centered around SuperH anymore.
- Non-critical fixes for the Aspeed driver.
- Non-critical fixes for the Ingenic (MIPS!) driver.
- Fix a bunch of missing pins on the AMD pinctrl driver"
* tag 'pinctrl-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (78 commits)
pinctrl: amd: Add missing pins to the pin group list
dt-bindings: pinctrl: sunxi: Allow pinctrl with more interrupt banks
pinctrl: visconti: PINCTRL_TMPV7700 should depend on ARCH_VISCONTI
pinctrl: mediatek: Free eint data on failure
pinctrl: single: fix debug output when #pinctrl-cells = 2
pinctrl: single: fix pinctrl_spec.args_count bounds check
pinctrl: sunrisepoint: Modify COMMUNITY macros to be consistent
pinctrl: cannonlake: Modify COMMUNITY macros to be consistent
pinctrl: tigerlake: Fix register offsets for TGL-H variant
pinctrl: Document pinctrl-single,pins when #pinctrl-cells = 2
pinctrl: mediatek: use devm_platform_ioremap_resource_byname()
pinctrl: nuvoton: npcm7xx: Constify static ops structs
pinctrl: mediatek: mt7622: add antsel pins/groups
pinctrl: ocelot: simplify the return expression of ocelot_gpiochip_register()
pinctrl: at91-pio4: add support for sama7g5 SoC
dt-bindings: pinctrl: at91-pio4: add microchip,sama7g5
pinctrl: spear: simplify the return expression of tvc_connect()
pinctrl: spear: simplify the return expression of spear310_pinctrl_probe
pinctrl: sprd: use module_platform_driver to simplify the code
pinctrl: Ingenic: Add I2S pins support for Ingenic SoCs.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"Quite a lot of stuff is going on here. Great cleanups/fixes from Marek
and others are biggest part.
I limited CPU LED trigger to 8 LEDs, because it was willing to
register 1024 'triggers' on machine with 1024 CPUs. I don't believe it
will cause any problems, but we can raise the limit if it does"
* tag 'leds-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (84 commits)
leds: pwm: Remove platform_data support
leds: lm3697: Fix out-of-bound access
leds: ns2: do not guard OF match pointer with of_match_ptr
leds: ns2: convert to fwnode API
leds: tlc591xx: fix leak of device node iterator
leds: pca963x: use struct led_init_data when registering
leds: pca963x: register LEDs immediately after parsing, get rid of platdata
leds: tca6507: remove binding comment
leds: tca6507: cosmetic change: use helper variable
leds: tca6507: do not set GPIO names
dt-bindings: leds: tca6507: convert to YAML
ledtrig-cpu: Limit to 8 CPUs
leds: TODO: Add documentation about possible subsystem improvements
leds: pca9532: read pwm settings from device tree
leds: pca9532: correct shift computation in pca9532_getled
leds: lm36274: Fix warning for undefined parameters
leds: lm3532: Fix warnings for undefined parameters
leds: pca963x: use flexible array
leds: pca963x: cosmetic: rename variables
leds: pca963x: cosmetic: rename variables
...
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Pull SCSI updates from James Bottomley:
"The usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi,
hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes.
There are only three core changes: adding sense codes, cleaning up
noretry and adding an option for limitless retries"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (226 commits)
scsi: hisi_sas: Recover PHY state according to the status before reset
scsi: hisi_sas: Filter out new PHY up events during suspend
scsi: hisi_sas: Add device link between SCSI devices and hisi_hba
scsi: hisi_sas: Add check for methods _PS0 and _PR0
scsi: hisi_sas: Add controller runtime PM support for v3 hw
scsi: hisi_sas: Switch to new framework to support suspend and resume
scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq()
scsi: qedf: Remove redundant assignment to variable 'rc'
scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store()
scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro
scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed
scsi: sun_esp: Use module_platform_driver to simplify the code
scsi: sun3x_esp: Use module_platform_driver to simplify the code
scsi: sni_53c710: Use module_platform_driver to simplify the code
scsi: qlogicpti: Use module_platform_driver to simplify the code
scsi: mac_esp: Use module_platform_driver to simplify the code
scsi: jazz_esp: Use module_platform_driver to simplify the code
scsi: mvumi: Fix error return in mvumi_io_attach()
scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req()
scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Improve DM core's bio splitting to use blk_max_size_offset(). Also
fix bio splitting for bios that were deferred to the worker thread
due to a DM device being suspended.
- Remove DM core's special handling of NVMe devices now that block core
has internalized efficiencies drivers previously needed to be
concerned about (via now removed direct_make_request).
- Fix request-based DM to not bounce through indirect dm_submit_bio;
instead have block core make direct call to blk_mq_submit_bio().
- Various DM core cleanups to simplify and improve code.
- Update DM cryot to not use drivers that set
CRYPTO_ALG_ALLOCATES_MEMORY.
- Fix DM raid's raid1 and raid10 discard limits for the purposes of
linux-stable. But then remove DM raid's discard limits settings now
that MD raid can efficiently handle large discards.
- A couple small cleanups across various targets.
* tag 'for-5.10/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix request-based DM to not bounce through indirect dm_submit_bio
dm: remove special-casing of bio-based immutable singleton target on NVMe
dm: export dm_copy_name_and_uuid
dm: fix comment in __dm_suspend()
dm: fold dm_process_bio() into dm_submit_bio()
dm: fix missing imposition of queue_limits from dm_wq_work() thread
dm snap persistent: simplify area_io()
dm thin metadata: Remove unused local variable when create thin and snap
dm raid: remove unnecessary discard limits for raid10
dm raid: fix discard limits for raid1 and raid10
dm crypt: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY
dm: use dm_table_get_device_name() where appropriate in targets
dm table: make 'struct dm_table' definition accessible to all of DM core
dm: eliminate need for start_io_acct() forward declaration
dm: simplify __process_abnormal_io()
dm: push use of on-stack flush_bio down to __send_empty_flush()
dm: optimize max_io_len() by inlining max_io_len_target_boundary()
dm: push md->immutable_target optimization down to __process_bio()
dm: change max_io_len() to use blk_max_size_offset()
dm table: stack 'chunk_sectors' limit to account for target-specific splitting
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