[PATCH 6.18 0/4] Backport the one-arg k*alloc_obj() APIs

[Eric Biggers <ebiggers@kernel.org>]

Two of my recent commits failed to build when cherry-picked to 6.18
solely because of their use of kzalloc_obj(size).  The two-argument
kzalloc_obj(size, gfp) was already backported to 6.18, but not the
one-argument "overload".

It seems likely that this is a very common issue.  These are core kernel
APIs that almost everyone uses.

Thus, this series adds the single-argument version to 6.18, in a
backport-friendly way by omitting the flex counter support.

After this is applied, dd015b566d50 and 696c030e1e34 will be clean
cherry-picks, so please cherry-pick those afterwards.

Kees Cook (1):
  slab: Introduce kmalloc_flex() and family

Linus Torvalds (2):
  add default_gfp() helper macro and use it in the new *alloc_obj()
    helpers
  default_gfp(): avoid using the "newfangled" __VA_OPT__ trick

Randy Dunlap (1):
  slab: recognize @GFP parameter as optional in kernel-doc

 Documentation/process/deprecated.rst |  7 +++
 include/linux/gfp.h                  |  4 ++
 include/linux/slab.h                 | 78 +++++++++++++++++++++-------
 3 files changed, 71 insertions(+), 18 deletions(-)


base-commit: e46dc0adfe39724bcf52cea47b8f9c9aed86a394
-- 
2.55.0