linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: andrey.konovalov@linux.dev
To: Marco Elver <elver@google.com>, Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Andrey Ryabinin <ryabinin.a.a@gmail.com>,
	kasan-dev@googlegroups.com, Peter Collingbourne <pcc@google.com>,
	Evgenii Stepanov <eugenis@google.com>,
	Florian Mayer <fmayer@google.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Andrey Konovalov <andreyknvl@google.com>
Subject: [PATCH 13/32] kasan: drop CONFIG_KASAN_GENERIC check from kasan_init_cache_meta
Date: Mon, 13 Jun 2022 22:14:04 +0200	[thread overview]
Message-ID: <d9a5f3886e8cce132121fe3a4ed2379a2fc1d1c2.1655150842.git.andreyknvl@google.com> (raw)
In-Reply-To: <cover.1655150842.git.andreyknvl@google.com>

From: Andrey Konovalov <andreyknvl@google.com>

As kasan_init_cache_meta() is only defined for the Generic mode, it does
not require the CONFIG_KASAN_GENERIC check.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
 mm/kasan/generic.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index 73aea784040a..5125fad76f70 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -367,12 +367,6 @@ void kasan_init_cache_meta(struct kmem_cache *cache, unsigned int *size)
 		/* Continue, since free meta might still fit. */
 	}
 
-	/* Only the generic mode uses free meta or flexible redzones. */
-	if (!IS_ENABLED(CONFIG_KASAN_GENERIC)) {
-		cache->kasan_info.free_meta_offset = KASAN_NO_FREE_META;
-		return;
-	}
-
 	/*
 	 * Add free meta into redzone when it's not possible to store
 	 * it in the object. This is the case when:
-- 
2.25.1



  parent reply	other threads:[~2022-06-13 20:17 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-13 20:13 [PATCH 00/32] kasan: switch tag-based modes to stack ring from per-object metadata andrey.konovalov
2022-06-13 20:13 ` [PATCH 01/32] kasan: check KASAN_NO_FREE_META in __kasan_metadata_size andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:13 ` [PATCH 02/32] kasan: rename kasan_set_*_info to kasan_save_*_info andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:13 ` [PATCH 03/32] kasan: move is_kmalloc check out of save_alloc_info andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:13 ` [PATCH 04/32] kasan: split save_alloc_info implementations andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:13 ` [PATCH 05/32] kasan: drop CONFIG_KASAN_TAGS_IDENTIFY andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:13 ` [PATCH 06/32] kasan: introduce kasan_print_aux_stacks andrey.konovalov
2022-06-17 11:34   ` Marco Elver
2022-07-18 22:41     ` Andrey Konovalov
2022-06-13 20:13 ` [PATCH 07/32] kasan: introduce kasan_get_alloc_track andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:13 ` [PATCH 08/32] kasan: introduce kasan_init_object_meta andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:14 ` [PATCH 09/32] kasan: clear metadata functions for tag-based modes andrey.konovalov
2022-06-20 13:39   ` Marco Elver
2022-06-13 20:14 ` [PATCH 10/32] kasan: move kasan_get_*_meta to generic.c andrey.konovalov
2022-06-13 20:14 ` [PATCH 11/32] kasan: introduce kasan_requires_meta andrey.konovalov
2022-06-13 20:14 ` [PATCH 12/32] kasan: introduce kasan_init_cache_meta andrey.konovalov
2022-06-13 20:14 ` andrey.konovalov [this message]
2022-06-13 20:14 ` [PATCH 14/32] kasan: only define kasan_metadata_size for Generic mode andrey.konovalov
2022-06-13 20:14 ` [PATCH 15/32] kasan: only define kasan_never_merge " andrey.konovalov
2022-06-13 20:14 ` [PATCH 16/32] kasan: only define metadata offsets " andrey.konovalov
2022-06-13 20:14 ` [PATCH 17/32] kasan: only define metadata structs " andrey.konovalov
2022-06-13 20:14 ` [PATCH 18/32] kasan: only define kasan_cache_create " andrey.konovalov
2022-06-13 20:14 ` [PATCH 19/32] kasan: pass tagged pointers to kasan_save_alloc/free_info andrey.konovalov
2022-06-20  9:54   ` Marco Elver
2022-07-18 22:41     ` Andrey Konovalov
2022-06-13 20:14 ` [PATCH 20/32] kasan: move kasan_get_alloc/free_track definitions andrey.konovalov
2022-06-13 20:14 ` [PATCH 21/32] kasan: simplify invalid-free reporting andrey.konovalov
2022-06-21  7:17   ` Kuan-Ying Lee
2022-07-12 20:38     ` Andrey Konovalov
2022-06-13 20:14 ` [PATCH 22/32] kasan: cosmetic changes in report.c andrey.konovalov
2022-06-13 20:14 ` [PATCH 23/32] kasan: use kasan_addr_to_slab in print_address_description andrey.konovalov
2022-06-13 20:14 ` [PATCH 24/32] kasan: move kasan_addr_to_slab to common.c andrey.konovalov
2022-06-15 13:27   ` kernel test robot
2022-07-18 22:41     ` Andrey Konovalov
2022-06-13 20:14 ` [PATCH 25/32] kasan: make kasan_addr_to_page static andrey.konovalov
2022-06-13 20:14 ` [PATCH 26/32] kasan: simplify print_report andrey.konovalov
2022-06-13 20:14 ` [PATCH 27/32] kasan: introduce complete_report_info andrey.konovalov
2022-06-13 20:14 ` [PATCH 28/32] kasan: fill in cache and object in complete_report_info andrey.konovalov
2022-06-13 20:14 ` [PATCH 29/32] kasan: rework function arguments in report.c andrey.konovalov
2022-06-13 20:14 ` [PATCH 30/32] kasan: introduce kasan_complete_mode_report_info andrey.konovalov
2022-06-13 20:14 ` [PATCH 31/32] kasan: implement stack ring for tag-based modes andrey.konovalov
2022-06-20 13:35   ` Marco Elver
2022-07-18 22:42     ` Andrey Konovalov
2022-06-13 20:14 ` [PATCH 32/32] kasan: better identify bug types " andrey.konovalov
2022-06-17  9:32 ` [PATCH 00/32] kasan: switch tag-based modes to stack ring from per-object metadata Marco Elver
2022-07-18 22:41   ` Andrey Konovalov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=d9a5f3886e8cce132121fe3a4ed2379a2fc1d1c2.1655150842.git.andreyknvl@google.com \
    --to=andrey.konovalov@linux.dev \
    --cc=akpm@linux-foundation.org \
    --cc=andreyknvl@gmail.com \
    --cc=andreyknvl@google.com \
    --cc=dvyukov@google.com \
    --cc=elver@google.com \
    --cc=eugenis@google.com \
    --cc=fmayer@google.com \
    --cc=glider@google.com \
    --cc=kasan-dev@googlegroups.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=pcc@google.com \
    --cc=ryabinin.a.a@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox