Linus Torvalds 4cdd5c0c6b Stop the ad-hoc games with -Wno-maybe-initialized ... commit 78a5255ffb upstream. We have some rather random rules about when we accept the "maybe-initialized" warnings, and when we don't. For example, we consider it unreliable for gcc versions < 4.9, but also if -O3 is enabled, or if optimizing for size. And then various kernel config options disabled it, because they know that they trigger that warning by confusing gcc sufficiently (ie PROFILE_ALL_BRANCHES). And now gcc-10 seems to be introducing a lot of those warnings too, so it falls under the same heading as 4.9 did. At the same time, we have a very straightforward way to _enable_ that warning when wanted: use "W=2" to enable more warnings. So stop playing these ad-hoc games, and just disable that warning by default, with the known and straight-forward "if you want to work on the extra compiler warnings, use W=123". Would it be great to have code that is always so obvious that it never confuses the compiler whether a variable is used initialized or not? Yes, it would. In a perfect world, the compilers would be smarter, and our source code would be simpler. That's currently not the world we live in, though. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-05-20 08:17:10 +02:00
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blktrace.c	blktrace: fix dereference after null check	2020-05-20 08:17:03 +02:00
bpf_trace.c	bpf: fix check of allowed specifiers in bpf_trace_printk	2018-12-17 09:28:50 +01:00
ftrace.c	ftrace: fpid_next() should increase position index	2020-02-28 16:36:07 +01:00
Kconfig	Stop the ad-hoc games with -Wno-maybe-initialized	2020-05-20 08:17:10 +02:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
power-traces.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ring_buffer.c	trace: Fix preempt_enable_no_resched() abuse	2019-05-02 09:40:28 +02:00
ring_buffer_benchmark.c	ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU	2017-08-02 14:23:02 -04:00
rpm-traces.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace.c	tracing: Add a vmalloc_sync_mappings() for safe measure	2020-05-20 08:16:58 +02:00
trace.h	ftrace: Protect ftrace_graph_hash with ftrace_sync	2020-02-14 16:32:13 -05:00
trace_benchmark.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_benchmark.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_branch.c	Revert "x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP"	2019-07-03 13:15:57 +02:00
trace_clock.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
trace_entries.h	tracing: Fix missing tab for hwlat_detector print format	2018-04-29 11:33:17 +02:00
trace_event_perf.c	perf/ftrace: Fix double traces of perf on ftrace:function	2017-08-29 13:29:29 +02:00
trace_events.c	tracing: Reverse the order of trace_types_lock and event_mutex	2020-05-10 10:29:02 +02:00
trace_events_filter.c	tracing: Fix regex_match_front() to not over compare the test string	2018-05-16 10:10:27 +02:00
trace_events_filter_test.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_events_hist.c	tracing: Use strncpy instead of memcpy for string keys in hist triggers	2019-03-23 14:35:19 +01:00
trace_events_trigger.c	tracing: Fix the race between registering 'snapshot' event trigger and triggering 'snapshot' operation	2020-04-24 08:00:56 +02:00
trace_export.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_functions.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_functions_graph.c	tracing/fgraph: Fix set_graph_function from showing interrupts	2019-05-16 19:42:27 +02:00
trace_hwlat.c	tracing/hwlat: Don't ignore outer-loop duration when calculating max_latency	2019-10-17 13:43:58 -07:00
trace_irqsoff.c	tracing/fgraph: Fix set_graph_function from showing interrupts	2019-05-16 19:42:27 +02:00
trace_kdb.c	tracing: Silence GCC 9 array bounds warning	2019-06-25 11:36:50 +08:00
trace_kprobe.c	ftrace/kprobe: Show the maxactive number on kprobe_events	2020-04-24 08:00:50 +02:00
trace_mmiotrace.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_nop.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_output.c	tracing: Reorder display of TGID to be after PID	2018-07-17 11:39:30 +02:00
trace_output.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_printk.c
trace_probe.c	tracing: probeevent: Fix to support minus offset from symbol	2018-03-28 18:24:42 +02:00
trace_probe.h	tracing: probeevent: Fix to support minus offset from symbol	2018-03-28 18:24:42 +02:00
trace_sched_switch.c	tracing: Fix sched switch start/stop refcount racy updates	2020-02-14 16:32:07 -05:00
trace_sched_wakeup.c	kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail	2020-01-14 20:05:40 +01:00
trace_selftest.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_selftest_dynamic.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_seq.c
trace_stack.c	tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined	2020-01-14 20:05:40 +01:00
trace_stat.c	tracing: Fix very unlikely race of registering two stat tracers	2020-02-28 16:35:58 +01:00
trace_stat.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_syscalls.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace_uprobe.c	tracing/uprobes: Fix output for multiple string arguments	2019-02-20 10:20:53 +01:00
tracing_map.c	tracing: Have the histogram compare functions convert to u64 first	2020-01-09 10:17:56 +01:00
tracing_map.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00