random32: rename random32 to prandom
authorAkinobu Mita <akinobu.mita@gmail.com>
Tue, 18 Dec 2012 00:04:23 +0000 (16:04 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 18 Dec 2012 01:15:26 +0000 (17:15 -0800)
commit496f2f93b1cc286f5a4f4f9acdc1e5314978683f
tree464fa6bd115ad4e3bedc02a0b0796a9f9e055ccc
parent31279b1457f992f24eee8d45ddd647f5fce42cf6
random32: rename random32 to prandom

This renames all random32 functions to have 'prandom_' prefix as follows:

  void prandom_seed(u32 seed); /* rename from srandom32() */
  u32 prandom_u32(void); /* rename from random32() */
  void prandom_seed_state(struct rnd_state *state, u64 seed);
   /* rename from prandom32_seed() */
  u32 prandom_u32_state(struct rnd_state *state);
   /* rename from prandom32() */

The purpose of this renaming is to prevent some kernel developers from
assuming that prandom32() and random32() might imply that only
prandom32() was the one using a pseudo-random number generator by
prandom32's "p", and the result may be a very embarassing security
exposure.  This concern was expressed by Theodore Ts'o.

And furthermore, I'm going to introduce new functions for getting the
requested number of pseudo-random bytes.  If I continue to use both
prandom32 and random32 prefixes for these functions, the confusion
is getting worse.

As a result of this renaming, "prandom_" is the common prefix for
pseudo-random number library.

Currently, srandom32() and random32() are preserved because it is
difficult to rename too many users at once.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Robert Love <robert.w.love@intel.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: David Laight <david.laight@aculab.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/scsi/fcoe/fcoe_ctlr.c
include/linux/random.h
lib/interval_tree_test_main.c
lib/random32.c
lib/rbtree_test.c