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Vlastimil Babka wrote: > On 8/1/25 07:57, WangYuli wrote: > > Hi all, > > > > On 2025/8/1 13:14, Lorenzo Stoakes wrote: > >> WangYuli - could you check? If it's as simple as this, feel free to send a patch > >> making this change. > >> > >> Thanks, Lorenzo > >> > > It's not that simple, of course... That didn't work. > > Yeah seems I can reproduce it with gcc-7.5 and it doesn't work. I think we should still add this though to make it consistent with the rest of the kernel. > > I think there is a difference with the other instances of omitted names > found by grep as Lorenzo suggested earlier - those seem to all be > declarations. But here in vma_internal.h they are (empty) static inline > definitions. Yep this seems to be the difference. > > Seems like newer gcc versions got more lenient. Haven't found why, but seems > they want it to stay like this: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113825 > > But I don't know if there's a way to make older gcc's lenient too. > > > I'll take another look. > > > > Thanks, > > > WangYuli - apologies - this is my fault entirely, I misunderstood things here. I was wrong to dismiss this out of hand, I guess not many headers are doing stubs like this, and I mistook this as being a general thing. Could you please do a v2 where you add back in parameter names (and add this compiler flag - I think we still should), but could you do me a favour and also fixup some horrid stuff here? I have functions like: static inline void vma_adjust_trans_huge(struct vm_area_struct *vma, unsigned long start, unsigned long end, struct vm_area_struct *next) { (void)vma; (void)start; (void)end; (void)next; } Where I am trying to avoid 'unused param' warnings which... won't actually arise. So could you eliminate all these horrid (void) things as well ass adding parameter names? That'd be really helpful, thanks! Cheers, Lorenzo