Re: [PATCH] coresight: Only register perf symlink for sinks with alloc_buffer

On Mon, 30 Jun 2025 18:26:19 +0800, Yuanfang Zhang wrote:

Ensure that etm_perf_add_symlink_sink() is only called for devices that implement the alloc_buffer operation. This prevents invalid symlink creation for dummy sinks that do not implement alloc_buffer.

Without this check, perf may attempt to use a dummy sink that lacks alloc_buffer operationsu to initialise perf's ring buffer, leading to runtime failures.

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Applied, thanks!

[1/1] coresight: Only register perf symlink for sinks with alloc_buffer commit: 59b61f705b83d41a876144975a2332c7b8ea96b0

Best regards,