Re: [PATCH] perf ftrace: Fix undefined behavior in cmp_profile_data()

[Namhyung Kim]

On Mon, 09 Dec 2024 21:42:26 +0800, Kuan-Wei Chiu wrote:

> The comparison function cmp_profile_data() violates the C standard's
> requirements for qsort() comparison functions, which mandate symmetry
> and transitivity:
> 
> * Symmetry: If x < y, then y > x.
> * Transitivity: If x < y and y < z, then x < z.
> 
> [...]

Applied to perf-tools, thanks!

Best regards,
Namhyung