[PATCH v2 01/49] perf python: Update syscall format string to optional positional

[Ian Rogers <irogers@google.com>]

Update the PyArg_ParseTupleAndKeywords format string for
pyrf__syscall_name() and pyrf__syscall_id() from "i|$i" to "i|i" (and
"s|$i" to "s|i"), allowing elf_machine to be passed as an optional
positional argument as well as a keyword argument.

Update syscall_id() and syscall_name() in perf.pyi to match, and set the
return type of syscall_name() to Optional[str] as unknown syscall numbers
return None.

Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/python/perf.pyi | 4 ++--
 tools/perf/util/python.c   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/python/perf.pyi b/tools/perf/python/perf.pyi
index 58b0b3ed819d..e737eb21567c 100644
--- a/tools/perf/python/perf.pyi
+++ b/tools/perf/python/perf.pyi
@@ -20,7 +20,7 @@ def metrics() -> List[Dict[str, Union[str, List[str]]]]:
     """
     ...
 
-def syscall_name(id: int, *, elf_machine: Optional[int] = None) -> str:
+def syscall_name(id: int, elf_machine: Optional[int] = None) -> Optional[str]:
     """Convert a syscall number to its name.
 
     Args:
@@ -32,7 +32,7 @@ def syscall_name(id: int, *, elf_machine: Optional[int] = None) -> str:
     """
     ...
 
-def syscall_id(name: str, *, elf_machine: Optional[int] = None) -> int:
+def syscall_id(name: str, elf_machine: Optional[int] = None) -> int:
     """Convert a syscall name to its number.
 
     Args:
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index d8a842621cda..a3ffaf4d0850 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -4111,7 +4111,7 @@ static PyObject *pyrf__syscall_name(PyObject *self, PyObject *args, PyObject *kw
 	int elf_machine = EM_HOST;
 	static char *kwlist[] = { "id", "elf_machine", NULL };
 
-	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|$i", kwlist, &id, &elf_machine))
+	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist, &id, &elf_machine))
 		return NULL;
 
 	name = syscalltbl__name(elf_machine, id);
@@ -4127,7 +4127,7 @@ static PyObject *pyrf__syscall_id(PyObject *self, PyObject *args, PyObject *kwar
 	int elf_machine = EM_HOST;
 	static char *kwlist[] = { "name", "elf_machine", NULL };
 
-	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|$i", kwlist, &name, &elf_machine))
+	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|i", kwlist, &name, &elf_machine))
 		return NULL;
 
 	id = syscalltbl__id(elf_machine, name);
-- 
2.55.0.1082.g2b9226bbc0-goog