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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-07-30 16:04:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-07-30 16:04:10 -0700 |
| commit | 90a871f74b70027779a4f312c0c74b6a89e22412 (patch) | |
| tree | 934d6bef516d1c2a37b0b6e7d1421cd51bef5bad /arch/powerpc/Kconfig | |
| parent | 2223228bb1c0608f24cf1d67d1177b0137a2f33b (diff) | |
| parent | 4d6d0a6263babf7c43faa55de4fa3c6637dec624 (diff) | |
Merge tag 'ftrace-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ftrace updates from Steven Rostedt:
- Keep track of when fgraph_ops are registered or not
Keep accounting of when fgraph_ops are registered as if a fgraph_ops
is registered twice it can mess up the accounting and it will not
work as expected later. Trigger a warning if something registers it
twice as to catch bugs before they are found by things just not
working as expected.
- Make DYNAMIC_FTRACE always enabled for architectures that support it
As static ftrace (where all functions are always traced) is very
expensive and only exists to help architectures support ftrace, do
not make it an option. As soon as an architecture supports
DYNAMIC_FTRACE make it use it. This simplifies the code.
- Remove redundant config HAVE_FTRACE_MCOUNT_RECORD
The CONFIG_HAVE_FTRACE_MCOUNT was added to help simplify the
DYNAMIC_FTRACE work, but now every architecture that implements
DYNAMIC_FTRACE also has HAVE_FTRACE_MCOUNT set too, making it
redundant with the HAVE_DYNAMIC_FTRACE.
- Make pid_ptr string size match the comment
In print_graph_proc() the pid_ptr string is of size 11, but the
comment says /* sign + log10(MAX_INT) + '\0' */ which is actually 12.
* tag 'ftrace-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Remove redundant config HAVE_FTRACE_MCOUNT_RECORD
ftrace: Make DYNAMIC_FTRACE always enabled for architectures that support it
fgraph: Keep track of when fgraph_ops are registered or not
fgraph: Make pid_str size match the comment
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 45b4fa7b9b02..514d0e92b336 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -244,7 +244,6 @@ config PPC select HAVE_EFFICIENT_UNALIGNED_ACCESS select HAVE_GUP_FAST select HAVE_FTRACE_GRAPH_FUNC - select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_ARG_ACCESS_API select HAVE_FUNCTION_DESCRIPTORS if PPC64_ELF_ABI_V1 select HAVE_FUNCTION_ERROR_INJECTION |