Re: [PATCH -next 0/2] Introduce memset_range() helper for wiping members

在 2021/12/8 13:27, Kees Cook 写道:

On Wed, Dec 08, 2021 at 11:04:49AM +0800, Xiu Jianfeng wrote:

quoted

Xiu Jianfeng (2):
   string.h: Introduce memset_range() for wiping members

For doing a memset range, the preferred method is to use
a struct_group in the structure itself. This makes the range
self-documenting, and allows the compile to validate the exact size,
makes it addressable, etc. The other memset helpers are for "everything
to the end", which doesn't usually benefit from the struct_group style
of range declaration.

Do you mean there is no need to introduce this helper,  but to use struct_group in the struct directly?

quoted

   bpf: use memset_range helper in __mark_reg_known

I never saw this patch arrive on the list?

I have send this patch as well, can you please check again?