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lib/vsprintf: Add a note on re-using %pf or %pF 

Add a note warning of re-use of obsolete %pf or %pF extensions.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Sakari Ailus 2019-10-03 15:32:15 +03:00 committed by Rafael J. Wysocki
parent 9af7706492
commit 1586c5ae2f
1 changed files with 2 additions and 0 deletions
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lib/vsprintf.c
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@ -2017,6 +2017,8 @@ 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]' %pf and %pF were obsoleted and later removed in favor of
* %ps and %pS. Be careful when re-using these specifiers.
* - '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]