On Wed, 18 Sep 2019 16:34:15 +0300 Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> wrote: > Add a note warning of re-use of obsolete %pf or %pF extensions. > > Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> > Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Suggested-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > --- > lib/vsprintf.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/lib/vsprintf.c b/lib/vsprintf.c > index b00b57f9f911f..df59818537b52 100644 > --- a/lib/vsprintf.c > +++ b/lib/vsprintf.c > @@ -2008,6 +2008,8 @@ static char *kobject_string(char *buf, char *end, void *ptr, > * - 'S' For symbolic direct pointers (or function descriptors) with offset > * - 's' For symbolic direct pointers (or function descriptors) without offset > * - '[Ss]R' as above with __builtin_extract_return_addr() translation > + * - '[Ff]' Obsolete an now unsupported extension for printing direct pointers "Obsolete and now"? -- Steve > + * or function descriptors. Be careful when re-using %pf or %pF! > * - 'B' For backtraced symbolic direct pointers with offset > * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref] > * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
