Re: [PATCH v2] vdso: Remove struct getcpu_cache

On 10/13/25 02:20, Thomas Weißschuh wrote:

-int __vdso_getcpu(unsigned int *cpu, unsigned int *node, struct getcpu_cache *unused); -int __vdso_getcpu(unsigned int *cpu, unsigned int *node, struct getcpu_cache *unused) +int __vdso_getcpu(unsigned int *cpu, unsigned int *node, void *unused); +int __vdso_getcpu(unsigned int *cpu, unsigned int *node, void *unused) { int cpu_id;

It would ideally be nice to have a _bit_ more history on this about how it became unused any why there is such high confidence that userspace never tries to use it.

Let's say someone comes along in a few years and wants to use this 'unused' parameter. Could they?