Document the data structures maintained by metricgroup.c and used by
stat-shadow.c for metric output.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-11-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Modify resolution. Rather than resolving a list of metrics, resolve a
metric immediately after it is added.

This simplifies knowing the root of the metric's tree so that IDs may be
associated with it.

A bug in the current implementation is that all the IDs were placed on
the first metric in a metric group.

Rather than maintain data on IDs' parents to detect cycles, maintain
a list of visited metrics and detect cycles if the same metric is
visited twice.

Only place the root metric onto the list of metrics.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-10-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

If a metric references other metrics then the same other metrics may be
referenced more than once, but the events and metric ref are only needed
once.

An example of this is in tests/parse-metric.c where DCache_L2_Hits
references the metric DCache_L2_All_Hits twice, once directly and once
through DCache_L2_All.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-9-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Metrics are complex enough that a new/free reduces the risk of memory
leaks. Move static functions used in new.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-8-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Documentation to make current functionality clearer.

Rename a variable called 'metric' to 'metric_name' as it can be
ambiguous as to whether a string is the name of a metric or the
expression.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-7-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

The runtime value is needed when recursively parsing metrics, currently
a value of 1 is passed which is incorrect.

Rather than add more arguments to the bison parser, add runtime to the
context.

Fix call sites not to pass a value. The runtime value is defaulted to 0,
which is arbitrary. In some places this replaces a value of 1, which was
also arbitrary.

This shouldn't affect anything other than PPC.

The use of 0 or 1 shouldn't matter as a proper runtime value would be
needed in a case that it did matter.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-6-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Make lookup nature of data structures clearer through their type. Reduce
scope of architecture specific pmu_event tables by making them static.

Suggested-by: John Garry <john.garry@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-5-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Make lookup nature of data structures clearer through their type.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-4-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

The pmu_events_map is generated at compile time and used for lookup. For
testing purposes we need to swap the map being used.

Having the pmu_events_map be non-const is misleading as it may be an out
argument.

Make it const and update uses so they work on const too.

Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-3-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Add list_sort.[ch] from the main kernel tree. The linux/bug.h #include
is removed due to conflicting definitions. Add check-headers and modify
perf build accordingly.

MANIFEST and python-ext-sources fixes suggested by Arnaldo.

Suggested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew Kilroy <andrew.kilroy@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Denys Zagorui <dzagorui@cisco.com>
Cc: Fabian Hemmer <copy@copy.sh>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Kook <keescook@chromium.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wan Jiabing <wanjiabing@vivo.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20211015172132.1162559-2-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Since:

  https://lore.kernel.org/lkml/20200708183919.4141023-1-irogers@google.com/



The output option works for 'perf kmem', however, it must appear after
'record'. This is different to 'stat' where '-i' for the input must
appear before. Try to capture this complication in the man page.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210922212031.485950-1-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

This is to ensure that the PMU event files can always be parsed by
other tools.

Testing
=======

 * There are no errors when parsing files for all architectures:
     # pmu-events/jevents nds32 pmu-events/arch/ test
     # pmu-events/jevents s390 pmu-events/arch/ test
     # pmu-events/jevents powerpc pmu-events/arch/ test
     # pmu-events/jevents arm64 pmu-events/arch/ test
     # pmu-events/jevents test pmu-events/arch/ test
     # pmu-events/jevents x86 pmu-events/arch/ test

 * Trailing and leading commas now cause a parse error

 * Double commas now cause a parse error

 * Compilation and parsing works with strict mode disabled and enabled

 * A diff of the output files shows no changes

Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Kajol <Jain&lt;kjain@linux.ibm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew.Kilroy@arm.com
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick.Forrington@arm.com
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20211007110543.564963-4-james.clark@arm.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Return an error when a trailing comma is found or a new item is
encountered before a comma or an opening brace. This ensures that the
perf JSON files conform more closely to the spec at https://www.json.org



Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Kajol <Jain&lt;kjain@linux.ibm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew.Kilroy@arm.com
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick.Forrington@arm.com
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20211007110543.564963-3-james.clark@arm.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Remove trailing commas. A later commit will make the parser more strict
and these will not be valid anymore.

Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Kajol <Jain&lt;kjain@linux.ibm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrew.Kilroy@arm.com
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick.Forrington@arm.com
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20211007110543.564963-2-james.clark@arm.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

There is a "#include <sys/file.h>" in line 10, so remove a duplicate
one in line 1124.

Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211006062235.6364-1-guozhengkui@vivo.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

This patch introduces a new inline function to convert a timeval to
usec.

This function will be used also in the next patch.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/b95035ec4a125355be8ea843f7275c4580da6398.1629490974.git.rickyman7@gmail.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

This patch adds a new function in util/mmap.c to duplicate a mmap_cpu_mask.

This new function will be used in patches in the workqueue patchkit.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/8943a548ef7a3dd3e015095afad7e9a8b2154c05.1629490974.git.rickyman7@gmail.com


[ bitmap_alloc() was renamed to bitmap_zalloc() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Since 7074674e

 ("perf cpumap: Maintain cpumaps ordered and
without dups") perf_cpu_map elements are sorted in ascending order.

This patch improves perf_cpu_map__idx() by using a binary search.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/f1543c15797169c21e8b205a4a6751159180580d.1629490974.git.rickyman7@gmail.com


[ Removed 'else' after if + return, declared variables where needed ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

To pick up the fixes in perf/urgent that were just merged into upstream.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Pull nfsd fixes from Chuck Lever:
 "Bug fixes for NFSD error handling paths"

* tag 'nfsd-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  NFSD: Keep existing listeners on portlist error
  SUNRPC: fix sign error causing rpcsec_gss drops
  nfsd: Fix a warning for nfsd_file_close_inode
  nfsd4: Handle the NFSv4 READDIR 'dircount' hint being zero
  nfsd: fix error handling of register_pernet_subsys() in init_nfsd()

Pull ARM SoC fixes from Arnd Bergmann:
 "This is a larger than normal update for Arm SoC specific code, most of
  it in device trees, but also drivers and the omap and at91/sama7
  platforms:

   - There are four new entries to the MAINTAINERS file: Sven Peter and
     Alyssa Rosenzweig for Apple M1, Romain Perier for Mstar/sigmastar,
     and Vignesh Raghavendra for TI K3

   - Build fixes to address randconfig warnings in sharpsl, dove, omap1,
     and qcom platforms as well as the scmi and op-tee subsystems

   - Regression fixes for missing CONFIG_FB and other options for
     several defconfigs

   - Several bug fixes for the newly added Microchip SAMA7 platform,
     mostly regarding power management

   - Missing SMP barriers to protect accesses to SCMI virtio device

   - Regression fixes for TI OMAP, including a boot-time hang on am335x.

   - Lots of bug fixes for NXP i.MX, mostly addressing incorrect
     settings in devicetree files, and one revert for broken suspend.

   - Fixes for ARM Juno/Vexpress devicetree files, addressing a couple
     of schema warnings.

   - Regression fixes for qualcomm SoC specific drivers and devicetree
     files, reverting an mdt_loader change and at least pastially
     reverting some of the 5.15 DTS changes, plus some minor bugfixes"

* tag 'armsoc-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (64 commits)
  MAINTAINERS: Add Sven Peter as ARM/APPLE MACHINE maintainer
  MAINTAINERS: Add Alyssa Rosenzweig as M1 reviewer
  firmware: arm_scmi: Add proper barriers to scmi virtio device
  firmware: arm_scmi: Simplify spinlocks in virtio transport
  ARM: dts: omap3430-sdp: Fix NAND device node
  bus: ti-sysc: Use CLKDM_NOAUTO for dra7 dcan1 for errata i893
  ARM: sharpsl_param: work around -Wstringop-overread warning
  ARM: defconfig: gemini: Restore framebuffer
  ARM: dove: mark 'putc' as inline
  ARM: omap1: move omap15xx local bus handling to usb.c
  MAINTAINERS: Add Vignesh to TI K3 platform maintainership
  arm64: dts: imx8m*-venice-gw7902: fix M2_RST# gpio
  ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence
  arm64: dts: ls1028a: fix eSDHC2 node
  arm64: dts: imx8mm-kontron-n801x-som: do not allow to switch off buck2
  ARM: dts: at91: sama7g5ek: to not touch slew-rate for SDMMC pins
  ARM: dts: at91: sama7g5ek: use proper slew-rate settings for GMACs
  ARM: at91: pm: preload base address of controllers in tlb
  ARM: at91: pm: group constants and addresses loading
  ARM: dts: at91: sama7g5ek: add suspend voltage for ddr3l rail
  ...

Apple SoC fixes for 5.15; just two MAINTAINERS updates.

- MAINTAINERS: Add Sven Peter as ARM/APPLE MACHINE maintainer
- MAINTAINERS: Add Alyssa Rosenzweig as M1 reviewer

* tag 'asahi-soc-fixes-5.15' of https://github.com/AsahiLinux/linux:
  MAINTAINERS: Add Sven Peter as ARM/APPLE MACHINE maintainer
  MAINTAINERS: Add Alyssa Rosenzweig as M1 reviewer

Link: https://lore.kernel.org/r/a50a9015-0e62-c451-4d0d-668233b35b85@marcan.st


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'scmi-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes

SCMI fixes for v5.15

A few fixes addressing:
- Kconfig dependency between VIRTIO and ARM_SCMI_PROTOCOL
- Link-time error with __exit annotation for virtio_scmi_exit
- Unnecessary nested irqsave/irqrestore spinlocks in virtio transport
- Missing SMP barriers to protect accesses to SCMI virtio device

* tag 'scmi-fixes-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: Add proper barriers to scmi virtio device
  firmware: arm_scmi: Simplify spinlocks in virtio transport
  firmware: arm_scmi: Remove __exit annotation
  firmware: arm_scmi: Fix virtio transport Kconfig dependency

Link: https://lore.kernel.org/r/20211007102822.27886-1-sudeep.holla@arm.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'omap-for-v5.15/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omaps for v5.15

Few regression fixes for omaps for the v5.15-rc cycle. There is a fix
for boot time hangs that can happen on some am335x devices that started
when the pruss devicetree nodes were added. The other fixes are less
critical:

- Fix compiler warning for sysc_init_soc() that got recently introduced

- Fix external abort for am335x pruss as otherwise some am335x will hang

- Use CLKDM_NOAUTO quirk also for dra7 dcan1

- Fix older NAND device node regression for omap3-sdp

* tag 'omap-for-v5.15/fixes-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap3430-sdp: Fix NAND device node
  bus: ti-sysc: Use CLKDM_NOAUTO for dra7 dcan1 for errata i893
  soc: ti: omap-prm: Fix external abort for am335x pruss
  bus: ti-sysc: Add break in switch statement in sysc_init_soc()

Link: https://lore.kernel.org/r/pull-1633609552-789682@atomide.com


Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Pull netfslib, cachefiles and afs fixes from David Howells:

 - Fix another couple of oopses in cachefiles tracing stemming from the
   possibility of passing in a NULL object pointer

 - Fix netfs_clear_unread() to set READ on the iov_iter so that source
   it is passed to doesn't do the wrong thing (some drivers look at the
   flag on iov_iter rather than other available information to determine
   the direction)

 - Fix afs_launder_page() to write back at the correct file position on
   the server so as not to corrupt data

* tag 'misc-fixes-20211007' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Fix afs_launder_page() to set correct start file position
  netfs: Fix READ/WRITE confusion when calling iov_iter_xarray()
  cachefiles: Fix oops with cachefiles_cull() due to NULL object

Merge tag 'perf-tools-fixes-for-v5.15-2021-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix plugin static linking with libopencsd on ARM and ARM64

 - Add missing -lstdc++ when linking with libopencsd

 - Add missing topdown metrics events to 'perf test attr'

 - Plug leak sys_event_tables list after processing JSON vendor events
   entries

 - Sync sound/asound.h copy with the kernel sources

* tag 'perf-tools-fixes-for-v5.15-2021-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf tests attr: Add missing topdown metrics events
  tools include UAPI: Sync sound/asound.h copy with the kernel sources
  perf build: Fix plugin static linking with libopencsd on ARM and ARM64
  perf build: Add missing -lstdc++ when linking with libopencsd
  perf jevents: Free the sys_event_tables list after processing entries

Pull networking fixes from Jakub Kicinski:
 "Including fixes from xfrm, bpf, netfilter, and wireless.

  Current release - regressions:

   - xfrm: fix XFRM_MSG_MAPPING ABI breakage caused by inserting a new
     value in the middle of an enum

   - unix: fix an issue in unix_shutdown causing the other end
     read/write failures

   - phy: mdio: fix memory leak

  Current release - new code bugs:

   - mlx5e: improve MQPRIO resiliency against bad configs

  Previous releases - regressions:

   - bpf: fix integer overflow leading to OOB access in map element
     pre-allocation

   - stmmac: dwmac-rk: fix ethernet on rk3399 based devices

   - netfilter: conntrack: fix boot failure with
     nf_conntrack.enable_hooks=1

   - brcmfmac: revert using ISO3166 country code and 0 rev as fallback

   - i40e: fix freeing of uninitialized misc IRQ vector

   - iavf: fix double unlock of crit_lock

  Previous releases - always broken:

   - bpf, arm: fix register clobbering in div/mod implementation

   - netfilter: nf_tables: correct issues in netlink rule change event
     notifications

   - dsa: tag_dsa: fix mask for trunked packets

   - usb: r8152: don't resubmit rx immediately to avoid soft lockup on
     device unplug

   - i40e: fix endless loop under rtnl if FW fails to correctly respond
     to capability query

   - mlx5e: fix rx checksum offload coexistence with ipsec offload

   - mlx5: force round second at 1PPS out start time and allow it only
     in supported clock modes

   - phy: pcs: xpcs: fix incorrect CL37 AN sequence, EEE disable
     sequence

  Misc:

   - xfrm: slightly rejig the new policy uAPI to make it less cryptic"

* tag 'net-5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (66 commits)
  net: prefer socket bound to interface when not in VRF
  iavf: fix double unlock of crit_lock
  i40e: Fix freeing of uninitialized misc IRQ vector
  i40e: fix endless loop under rtnl
  dt-bindings: net: dsa: marvell: fix compatible in example
  ionic: move filter sync_needed bit set
  gve: report 64bit tx_bytes counter from gve_handle_report_stats()
  gve: fix gve_get_stats()
  rtnetlink: fix if_nlmsg_stats_size() under estimation
  gve: Properly handle errors in gve_assign_qpl
  gve: Avoid freeing NULL pointer
  gve: Correct available tx qpl check
  unix: Fix an issue in unix_shutdown causing the other end read/write failures
  net: stmmac: trigger PCS EEE to turn off on link down
  net: pcs: xpcs: fix incorrect steps on disable EEE
  netlink: annotate data races around nlk->bound
  net: pcs: xpcs: fix incorrect CL37 AN sequence
  net: sfp: Fix typo in state machine debug string
  net/sched: sch_taprio: properly cancel timer from taprio_destroy()
  net: bridge: fix under estimation in br_get_linkxstats_size()
  ...

Merge tag 'hyperv-fixes-signed-20211007' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - Replace uuid.h with types.h in a header (Andy Shevchenko)

 - Avoid sleeping in atomic context in PCI driver (Long Li)

 - Avoid sending IPI to self when it shouldn't (Vitaly Kuznetsov)

* tag 'hyperv-fixes-signed-20211007' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  x86/hyperv: Avoid erroneously sending IPI to 'self'
  hyper-v: Replace uuid.h with types.h
  PCI: hv: Fix sleep while in non-sleep context when removing child devices from the bus

Hector suggested I should add myself to help him maintain the
platform.

Acked-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Sven Peter <sven@svenpeter.dev>

Add myself as a reviewer for Asahi Linux (Apple M1) patches.

I would like to be CC'ed on Asahi Linux patches for review and testing.
I am also collecting Asahi Linux patches downstream, rebasing on
linux-next periodically, and would like to be notified of what to
cherry-pick from lists.

Cc: Hector Martin <marcan@marcan.st>
Cc: Sven Peter <sven@svenpeter.dev>
Acked-by: Hector Martin <marcan@marcan.st>
Acked-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>

The commit 6da5b0f0 ("net: ensure unbound datagram socket to be
chosen when not in a VRF") modified compute_score() so that a device
match is always made, not just in the case of an l3mdev skb, then
increments the score also for unbound sockets. This ensures that
sockets bound to an l3mdev are never selected when not in a VRF.
But as unbound and bound sockets are now scored equally, this results
in the last opened socket being selected if there are matches in the
default VRF for an unbound socket and a socket bound to a dev that is
not an l3mdev. However, handling prior to this commit was to always
select the bound socket in this case. Reinstate this handling by
incrementing the score only for bound sockets. The required isolation
due to choosing between an unbound socket and a socket bound to an
l3mdev remains in place due to the device match always being made.
The same approach is taken for compute_score() for stream sockets.

Fixes: 6da5b0f0 ("net: ensure unbound datagram socket to be chosen when not in a VRF")
Fixes: e7819058

 ("net: ensure unbound stream socket to be chosen when not in a VRF")
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/cf0a8523-b362-1edf-ee78-eef63cbbb428@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Daniel Borkmann says:

====================
pull-request: bpf 2021-10-07

We've added 7 non-merge commits during the last 8 day(s) which contain
a total of 8 files changed, 38 insertions(+), 21 deletions(-).

The main changes are:

1) Fix ARM BPF JIT to preserve caller-saved regs for DIV/MOD JIT-internal
   helper call, from Johan Almbladh.

2) Fix integer overflow in BPF stack map element size calculation when
   used with preallocation, from Tatsuhiko Yasumatsu.

3) Fix an AF_UNIX regression due to added BPF sockmap support related
   to shutdown handling, from Jiang Wang.

4) Fix a segfault in libbpf when generating light skeletons from objects
   without BTF, from Kumar Kartikeya Dwivedi.

5) Fix a libbpf memory leak in strset to free the actual struct strset
   itself, from Andrii Nakryiko.

6) Dual-license bpf_insn.h similarly as we did for libbpf and bpftool,
   with ACKs from all contributors, from Luca Boccassi.
====================

Link: https://lore.kernel.org/r/20211007135010.21143-1-daniel@iogearbox.net


Signed-off-by: Jakub Kicinski <kuba@kernel.org>

ipsec

Steffen Klassert says:

====================
pull request (net): ipsec 2021-10-07

1) Fix a sysbot reported shift-out-of-bounds in xfrm_get_default.
   From Pavel Skripkin.

2) Fix XFRM_MSG_MAPPING ABI breakage. The new XFRM_MSG_MAPPING
   messages were accidentally not paced at the end.
   Fix by Eugene Syromiatnikov.

3) Fix the uapi for the default policy, use explicit field and macros
   and make it accessible to userland.
   From Nicolas Dichtel.

4) Fix a missing rcu lock in xfrm_notify_userpolicy().
   From Nicolas Dichtel.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2021-10-06

This series contains updates to i40e and iavf drivers.

Jiri Benc expands an error check to prevent infinite loop for i40e.

Sylwester prevents freeing of uninitialized IRQ vector to resolve a
kernel oops for i40e.

Stefan Assmann fixes a double mutex unlock for iavf.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

Pull devicetree fixes from Rob Herring:

 - Add another allowed address for TI sn65dsi86

 - Drop more redundant minItems/maxItems

 - Fix more graph 'unevaluatedProperties' warnings in media bindings

* tag 'devicetree-fixes-for-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: drm/bridge: ti-sn65dsi86: Fix reg value
  dt-bindings: Drop more redundant 'maxItems/minItems'
  dt-bindings: media: Fix more graph 'unevaluatedProperties' related warnings

If nfsd has existing listening sockets without any processes, then an error
returned from svc_create_xprt() for an additional transport will remove
those existing listeners.  We're seeing this in practice when userspace
attempts to create rpcrdma transports without having the rpcrdma modules
present before creating nfsd kernel processes.  Fix this by checking for
existing sockets before calling nfsd_destroy().

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

The crit_lock mutex could be unlocked twice as reported here
https://lists.osuosl.org/pipermail/intel-wired-lan/Week-of-Mon-20210823/025525.html

Remove the superfluous unlock. Technically the problem was already
present before 5ac49f3c

 as that commit only replaced the locking
primitive, but no functional change.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 5ac49f3c ("iavf: use mutexes for locking of critical sections")
Fixes: bac84861

 ("iavf: Refactor the watchdog state machine")
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

When VSI set up failed in i40e_probe() as part of PF switch set up
driver was trying to free misc IRQ vectors in
i40e_clear_interrupt_scheme and produced a kernel Oops:

   Trying to free already-free IRQ 266
   WARNING: CPU: 0 PID: 5 at kernel/irq/manage.c:1731 __free_irq+0x9a/0x300
   Workqueue: events work_for_cpu_fn
   RIP: 0010:__free_irq+0x9a/0x300
   Call Trace:
   ? synchronize_irq+0x3a/0xa0
   free_irq+0x2e/0x60
   i40e_clear_interrupt_scheme+0x53/0x190 [i40e]
   i40e_probe.part.108+0x134b/0x1a40 [i40e]
   ? kmem_cache_alloc+0x158/0x1c0
   ? acpi_ut_update_ref_count.part.1+0x8e/0x345
   ? acpi_ut_update_object_reference+0x15e/0x1e2
   ? strstr+0x21/0x70
   ? irq_get_irq_data+0xa/0x20
   ? mp_check_pin_attr+0x13/0xc0
   ? irq_get_irq_data+0xa/0x20
   ? mp_map_pin_to_irq+0xd3/0x2f0
   ? acpi_register_gsi_ioapic+0x93/0x170
   ? pci_conf1_read+0xa4/0x100
   ? pci_bus_read_config_word+0x49/0x70
   ? do_pci_enable_device+0xcc/0x100
   local_pci_probe+0x41/0x90
   work_for_cpu_fn+0x16/0x20
   process_one_work+0x1a7/0x360
   worker_thread+0x1cf/0x390
   ? create_worker+0x1a0/0x1a0
   kthread+0x112/0x130
   ? kthread_flush_work_fn+0x10/0x10
   ret_from_fork+0x1f/0x40

The problem is that at that point misc IRQ vectors
were not allocated yet and we get a call trace
that driver is trying to free already free IRQ vectors.

Add a check in i40e_clear_interrupt_scheme for __I40E_MISC_IRQ_REQUESTED
PF state before calling i40e_free_misc_vector. This state is set only if
misc IRQ vectors were properly initialized.

Fixes: c17401a1

 ("i40e: use separate state bit for miscellaneous IRQ setup")
Reported-by: PJ Waskiewicz <pwaskiewicz@jumptrading.com>
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

The loop in i40e_get_capabilities can never end. The problem is that
although i40e_aq_discover_capabilities returns with an error if there's
a firmware problem, the returned error is not checked. There is a check for
pf->hw.aq.asq_last_status but that value is set to I40E_AQ_RC_OK on most
firmware problems.

When i40e_aq_discover_capabilities encounters a firmware problem, it will
encounter the same problem on its next invocation. As the result, the loop
becomes endless. We hit this with I40E_ERR_ADMIN_QUEUE_TIMEOUT but looking
at the code, it can happen with a range of other firmware errors.

I don't know what the correct behavior should be: whether the firmware
should be retried a few times, or whether pf->hw.aq.asq_last_status should
be always set to the encountered firmware error (but then it would be
pointless and can be just replaced by the i40e_aq_discover_capabilities
return value). However, the current behavior with an endless loop under the
rtnl mutex(!) is unacceptable and Intel has not submitted a fix, although we
explained the bug to them 7 months ago.

This may not be the best possible fix but it's better than hanging the whole
system on a firmware bug.

Fixes: 56a62fc8

 ("i40e: init code and hardware support")
Tested-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

__send_ipi_mask_ex() uses an optimization: when the target CPU mask is
equal to 'cpu_present_mask' it uses 'HV_GENERIC_SET_ALL' format to avoid
converting the specified cpumask to VP_SET. This case was overlooked when
'exclude_self' parameter was added. As the result, a spurious IPI to
'self' can be send.

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Fixes: dfb5c1e1

 ("x86/hyperv: remove on-stack cpumask from hv_send_ipi_mask_allbutself")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20211006125016.941616-1-vkuznets@redhat.com


Signed-off-by: Wei Liu <wei.liu@kernel.org>