[PATCH v2 0/2] ftrace: Expose call graph depth as unsigned int

From: Ilya Leoshkevich
Date: Sat Apr 12 2025 - 18:19:33 EST


v1: https://lore.kernel.org/lkml/20250411172207.61332-1-iii@xxxxxxxxxxxxx/
v1 -> v2: Use unsigned int instead of int.
Add a follow-up patch that changes depth to unsigned int in
all events.

Hi,

This series changes the type of depth in all call graph events to
unsigned int.

Patch 1 fixes a size mismatch issue in ftrace_graph_ent_entry, which
causes trace-cmd on 64-bit big-endian systems to output a lot of bogus
spaces, rendering it unusable.

Patch 2 changes type of depth in all other events to unsigned int in
order to better reflect its semantics: it can only be negative
internally, but recorded values are always non-negative.

Best regards,
Ilya

Ilya Leoshkevich (2):
ftrace: Fix type of ftrace_graph_ent_entry.depth
ftrace: Expose call graph depth as unsigned int

kernel/trace/trace_entries.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

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2.49.0