[PATCH v1 0/6] vsprintf: Add __printf attribute to where it's required

Andy Shevchenko
2025-03-20T18:09:35Z

This whole series started from a simple fix (see the last patch)
to make GCC (Debian 14.2.0-17) happy when compiling with `make W=1`
(note, that CONFIG_WERROR=y and all warnings break the build!)
down to a rabbit hole.

The series is organised in a strict order and can't be split or
reshuffled, otherwise see above.

Also note the last patch has a bit of a hackish approach and
I have no idea how to fix it differently, I tried a few different,
all failed. So, if you think there is a better one, please advise!

I believe the best route for the series is printk tree with immutable
tag or branch for the others.

Andy Shevchenko (6):
seq_buf: Mark binary printing functions with __printf() attribute
seq_file: Mark binary printing functions with __printf() attribute
tracing: Mark binary printing functions with __printf() attribute
vsnprintf: Mark binary printing functions with __printf() attribute
vsnprintf: Mark pointer() with __printf() attribute
vsnprintf: Mark va_format() with __printf() attribute

include/linux/printk.h | 5 ++++-
include/linux/seq_buf.h | 4 ++--
include/linux/seq_file.h | 1 +
include/linux/string.h | 4 ++--
include/linux/trace_seq.h | 7 ++++---
kernel/trace/trace.c | 3 ---
kernel/trace/trace.h | 16 +++++++++-------
lib/vsprintf.c | 9 +++++----
8 files changed, 27 insertions(+), 22 deletions(-)

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2.47.2