[PATCH 0/3] printk: add macros to simplify handling struct va_format

Andrzej Hajda
2025-11-26T11:37:30Z

This patchset contains patch abstracting out most common bits of va_format uses
into small macro. The macro works as a forwarder of variadic args to va_format
call.
Rough estimates based on dirty cocci script suggests about 180-230 users
could be converted, allowing to remove about 1100-1300 lines of code.
Of course, I do not plan to do it in mass. I just provide two patches to
show the usage and potential.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
---
Andrzej Hajda (3):
printk: add macros to simplify handling struct va_format
drivers/core: use va_format_call helper
mm: use va_format_call helper

drivers/base/core.c | 32 ++++++--------------------------
include/linux/printk.h | 30 ++++++++++++++++++++++++++++++
mm/page_alloc.c | 14 ++++----------
mm/slub.c | 10 +---------
4 files changed, 41 insertions(+), 45 deletions(-)
---
base-commit: 37a098cc87aafdf4de147851cbf350bb66c51b45
change-id: 20251126-va_format_call-41053ef60fd7

Best regards,
--
Andrzej Hajda <andrzej.hajda@intel.com>