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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 13:47:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 13:47:37 -0700
commit30945669593df14692e933c557d00c4bb2727857 (patch)
tree69dee0556b482898ae95f1bdfa25c63f4ce16f57 /Documentation
parent5aa1c98862d3f365d9cf6d0833d5dc127d2a76e7 (diff)
parentb0d33c2bd77bcf2d7c9427d2361ac57fe5b33aa1 (diff)
downloadlinux-30945669593df14692e933c557d00c4bb2727857.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull fixup for trivial branch from Jiri Kosina:
 "Unfortunately I made a mistake when merging into for-linus branch, and
  omitted one pre-requisity patch for a few other patches (which have
  been Acked by the appropriate maintainers) in the series.  Mea culpa
  maxima, sorry for that."

The trivial branch added %pSR usage before actually teaching vsnprintf()
about the 'R' part of %pSR.  The 'R' causes the symbol translation to do
a "__builtin_extract_return_addr()" before symbol lookup.

That said, on most architectures __builtin_extract_return_addr() isn't
likely to do anything special, so it probably is not normally
noticeable.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  vsprintf: Add extension %pSR - print_symbol replacement
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/printk-formats.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 6e953564de03..3af5ae6c9c11 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -17,6 +17,8 @@ Symbols/Function Pointers:
 	%pF	versatile_init+0x0/0x110
 	%pf	versatile_init
 	%pS	versatile_init+0x0/0x110
+	%pSR	versatile_init+0x9/0x110
+		(with __builtin_extract_return_addr() translation)
 	%ps	versatile_init
 	%pB	prev_fn_of_versatile_init+0x88/0x88