On Tue, Sep 27, 2022 at 03:14:45PM +0200, Miguel Ojeda wrote: > From: Gary Guo <gary@xxxxxxxxxxx> > > This patch adds a format specifier `%pA` to `vsprintf` which formats > a pointer as `core::fmt::Arguments`. Doing so allows us to directly > format to the internal buffer of `printf`, so we do not have to use > a temporary buffer on the stack to pre-assemble the message on > the Rust side. > > This specifier is intended only to be used from Rust and not for C, so > `checkpatch.pl` is intentionally unchanged to catch any misuse. > > Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> > Acked-by: Petr Mladek <pmladek@xxxxxxxx> > Co-developed-by: Alex Gaynor <alex.gaynor@xxxxxxxxx> > Signed-off-by: Alex Gaynor <alex.gaynor@xxxxxxxxx> > Co-developed-by: Wedson Almeida Filho <wedsonaf@xxxxxxxxxx> > Signed-off-by: Wedson Almeida Filho <wedsonaf@xxxxxxxxxx> > Signed-off-by: Gary Guo <gary@xxxxxxxxxxx> > Co-developed-by: Miguel Ojeda <ojeda@xxxxxxxxxx> > Signed-off-by: Miguel Ojeda <ojeda@xxxxxxxxxx> > --- > Documentation/core-api/printk-formats.rst | 10 ++++++++++ > lib/vsprintf.c | 13 +++++++++++++ > 2 files changed, 23 insertions(+) Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
