linuxkpi: Add list_for_each_entry_lockless() macro

[nc]

Summary

The reason why list_for_each_entry() is being redefined here is because unlike the Linux version, FreeBSD's list_for_each_entry() does not use locks.

This is needed by the drm-kmod 5.7 update.

[manu]

If it's the same as list_for_each_entry you should explain why in the commit message.

[nc]

I believe linuxkpi's list_for_each_entry is lockless (but am not sure), so I updated the message.

[• hselasky]

Please use function macro.

#define list_for_each_entry_lockless(...) list_for_each_entry(__VA_ARGS__)

--HPS

[nc]

Using function macro as per @hselasky's suggestion.