From: Kees Cook <keescook@chromium.org>
Date: Fri, 23 Jul 2021 20:05:26 +0000 (-0700)
Subject: deprecated.rst: Include details on "no_hash_pointers"
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6ab0493dfc6255a99eb5f157e012eeafd75f5b56;p=linux.git

deprecated.rst: Include details on "no_hash_pointers"

Linus decided a debug toggle for %p was tolerable, so update the
%p deprecation documentation.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210723200526.3424128-1-keescook@chromium.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
---

diff --git a/Documentation/process/deprecated.rst b/Documentation/process/deprecated.rst
index 9d83b8db88740..8ced754a5a0f6 100644
--- a/Documentation/process/deprecated.rst
+++ b/Documentation/process/deprecated.rst
@@ -164,7 +164,9 @@ Paraphrasing Linus's current `guidance <https://lore.kernel.org/lkml/CA+55aFwQEd
   up to Linus's scrutiny, maybe you can use "%px", along with making sure
   you have sensible permissions.
 
-And finally, know that a toggle for "%p" hashing will `not be accepted <https://lore.kernel.org/lkml/CA+55aFwieC1-nAs+NFq9RTwaR8ef9hWa4MjNBWL41F-8wM49eA@mail.gmail.com/>`_.
+If you are debugging something where "%p" hashing is causing problems,
+you can temporarily boot with the debug flag "`no_hash_pointers
+<https://git.kernel.org/linus/5ead723a20e0447bc7db33dc3070b420e5f80aa6>`_".
 
 Variable Length Arrays (VLAs)
 -----------------------------