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From: Peter Zijlstra <peterz@infradead.org>
To: tglx@linutronix.de
Cc: x86@kernel.org, elver@google.com, paulmck@kernel.org,
	kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
	peterz@infradead.org, will@kernel.org, dvyukov@google.com,
	glider@google.com, andreyknvl@google.com
Subject: [PATCH 2/8] kcsan: Remove __no_kcsan_or_inline
Date: Thu, 04 Jun 2020 12:22:43 +0200	[thread overview]
Message-ID: <20200604102428.020498631@infradead.org> (raw)
In-Reply-To: 20200604102241.466509982@infradead.org

There are no more user of this function attribute, also, with us now
actively supporting '__no_kcsan inline' it doesn't make sense to have
in any case.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 Documentation/dev-tools/kcsan.rst |    6 ------
 include/linux/compiler_types.h    |    5 +----
 2 files changed, 1 insertion(+), 10 deletions(-)

--- a/Documentation/dev-tools/kcsan.rst
+++ b/Documentation/dev-tools/kcsan.rst
@@ -114,12 +114,6 @@ functions, compilation units, or entire
   To dynamically limit for which functions to generate reports, see the
   `DebugFS interface`_ blacklist/whitelist feature.
 
-  For ``__always_inline`` functions, replace ``__always_inline`` with
-  ``__no_kcsan_or_inline`` (which implies ``__always_inline``)::
-
-    static __no_kcsan_or_inline void foo(void) {
-        ...
-
 * To disable data race detection for a particular compilation unit, add to the
   ``Makefile``::
 
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -193,10 +193,7 @@ struct ftrace_likely_data {
 
 #define __no_kcsan __no_sanitize_thread
 #ifdef __SANITIZE_THREAD__
-# define __no_kcsan_or_inline __no_kcsan notrace __maybe_unused
-# define __no_sanitize_or_inline __no_kcsan_or_inline
-#else
-# define __no_kcsan_or_inline __always_inline
+# define __no_sanitize_or_inline __no_kcsan notrace __maybe_unused
 #endif
 
 #ifndef __no_sanitize_or_inline



  parent reply	other threads:[~2020-06-04 10:25 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-04 10:22 [PATCH 0/8] x86/entry: KCSAN/KASAN/UBSAN vs noinstr Peter Zijlstra
2020-06-04 10:22 ` [PATCH 1/8] x86, kcsan: Remove __no_kcsan_or_inline usage Peter Zijlstra
2020-06-04 10:22 ` Peter Zijlstra [this message]
2020-06-04 10:22 ` [PATCH 3/8] x86, kcsan: Add __no_kcsan to noinstr Peter Zijlstra
2020-06-04 10:22 ` [PATCH 4/8] kasan: Bump required compiler version Peter Zijlstra
2020-06-04 10:22 ` [PATCH 5/8] compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr Peter Zijlstra
2020-06-04 10:22 ` [PATCH 6/8] x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline() Peter Zijlstra
2020-06-04 10:22 ` [PATCH 7/8] x86/entry, ubsan, objtool: Whitelist __ubsan_handle_*() Peter Zijlstra
2020-06-04 10:22 ` [PATCH 8/8] x86/entry, bug: Comment the instrumentation_begin() usage for WARN() Peter Zijlstra
2020-06-04 11:01 ` [PATCH 0/8] x86/entry: KCSAN/KASAN/UBSAN vs noinstr Marco Elver
2020-06-15 10:07   ` Marco Elver
2020-06-15 14:57     ` Qian Cai
2020-06-15 15:06       ` Peter Zijlstra

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