tree 0069dd9dba6554f74436ea1d836ecc054a6b95d7
parent 4d8a743cdd2690c0bc8d1b8cbd02cffb1ead849f
author Linus Torvalds <torvalds@linux-foundation.org> 1215387792 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1215388551 -0700

vsprintf: add support for '%pS' and '%pF' pointer formats

They print out a pointer in symbolic format, if possible (ie using
symbolic KALLSYMS information).  The '%pS' format is for regular direct
pointers (which can point to data or code and that you find on the stack
during backtraces etc), while '%pF' is for C function pointer types.

On most architectures, the two mean exactly the same thing, but some
architectures use an indirect pointer for C function pointers, where the
function pointer points to a function descriptor (which in turn contains
the actual pointer to the code).  The '%pF' code automatically does the
appropriate function descriptor dereference on such architectures.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>