From: Vincent Mailhol via B4 Relay <devnull+mailhol.vincent.wanadoo.fr@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>,
David Laight <David.Laight@aculab.com>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Bill Wendling <morbo@google.com>,
Justin Stitt <justinstitt@google.com>,
Yury Norov <yury.norov@gmail.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Jani Nikula <jani.nikula@linux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Tvrtko Ursulin <tursulin@ursulin.net>,
David Airlie <airlied@gmail.com>,
Simona Vetter <simona@ffwll.ch>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@linaro.org>,
James Clark <james.clark@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Rikard Falkeborn <rikard.falkeborn@gmail.com>,
Martin Uecker <Martin.Uecker@med.uni-goettingen.de>
Cc: linux-sparse@vger.kernel.org, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev, linux-hardening@vger.kernel.org,
intel-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, coresight@lists.linaro.org,
linux-arm-kernel@lists.infradead.org,
Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Subject: [PATCH 09/10] coresight: etm4x: replace __is_const_expr() by is_const()
Date: Tue, 03 Dec 2024 02:33:31 +0900 [thread overview]
Message-ID: <20241203-is_constexpr-refactor-v1-9-4e4cbaecc216@wanadoo.fr> (raw)
In-Reply-To: <20241203-is_constexpr-refactor-v1-0-4e4cbaecc216@wanadoo.fr>
From: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
is_const() is a one to one replacement of __is_constexpr(). Do the
replacement so that __is_constexpr() can be removed.
Refer to [1] for an explaination of why __builtin_constant_p() can not
be used as a replacement here.
[1] commit 4d45bc82df66 ("coresight: etm4x: avoid build failure with unrolled loops")
Link: https://git.kernel.org/torvalds/c/4d45bc82df66
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
---
drivers/hwtracing/coresight/coresight-etm4x.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index 9e9165f62e81fe5a87d35b4e30bc23f93cb211ec..91cf81ac46f44418f76783c102477d08f9abc70f 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -492,7 +492,7 @@
({ \
u64 __val; \
\
- if (__is_constexpr((offset))) \
+ if (is_const(offset)) \
__val = read_etm4x_sysreg_const_offset((offset)); \
else \
__val = etm4x_sysreg_read((offset), true, (_64bit)); \
--
2.45.2
next prev parent reply other threads:[~2024-12-02 17:35 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-02 17:33 [PATCH 00/10] compiler.h: refactor __is_constexpr() into is_const{,_true,_false}() Vincent Mailhol via B4 Relay
2024-12-02 17:33 ` [PATCH 01/10] compiler.h: add statically_false() Vincent Mailhol via B4 Relay
2024-12-04 18:30 ` David Laight
2024-12-05 15:25 ` Vincent Mailhol
2024-12-06 3:39 ` David Laight
2024-12-06 4:42 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 02/10] compiler.h: add is_const() as a replacement of __is_constexpr() Vincent Mailhol via B4 Relay
2024-12-04 18:39 ` David Laight
2024-12-04 21:20 ` Yury Norov
2024-12-05 15:31 ` Vincent Mailhol
2024-12-06 2:25 ` David Laight
2024-12-06 6:14 ` Linus Torvalds
2024-12-06 7:19 ` Vincent Mailhol
2024-12-06 8:49 ` Vincent Mailhol
2024-12-06 8:29 ` Martin Uecker
2024-12-06 18:30 ` Vincent Mailhol
2024-12-06 18:52 ` Linus Torvalds
2024-12-06 19:02 ` Linus Torvalds
2024-12-06 19:06 ` David Laight
2024-12-06 19:15 ` Linus Torvalds
2024-12-06 19:38 ` Willy Tarreau
2024-12-06 19:43 ` David Laight
2024-12-06 19:38 ` David Laight
2024-12-06 20:23 ` David Laight
2024-12-07 7:42 ` Vincent Mailhol
2024-12-07 11:19 ` David Laight
2024-12-07 12:24 ` Vincent Mailhol
2024-12-07 18:19 ` Linus Torvalds
2024-12-07 19:51 ` Martin Uecker
2024-12-07 20:31 ` Linus Torvalds
2024-12-07 20:54 ` David Laight
2024-12-07 21:00 ` David Laight
2024-12-07 21:06 ` Martin Uecker
2024-12-07 21:45 ` David Laight
2024-12-09 9:59 ` Rasmus Villemoes
2024-12-06 6:40 ` Martin Uecker
2024-12-06 7:26 ` Vincent Mailhol
2024-12-07 8:39 ` Martin Uecker
2024-12-07 10:33 ` David Laight
2024-12-07 13:07 ` Martin Uecker
2024-12-07 18:26 ` Linus Torvalds
2024-12-07 19:19 ` Martin Uecker
2024-12-07 20:28 ` Linus Torvalds
2024-12-07 23:52 ` Martin Uecker
2024-12-08 1:58 ` Linus Torvalds
2024-12-08 9:18 ` Martin Uecker
2024-12-08 11:26 ` David Laight
2024-12-08 12:38 ` Martin Uecker
2024-12-08 16:48 ` David Laight
2024-12-08 18:10 ` Martin Uecker
2024-12-08 19:05 ` Linus Torvalds
2024-12-07 12:45 ` Vincent Mailhol
2024-12-07 13:18 ` Martin Uecker
2024-12-07 13:50 ` Vincent Mailhol
2024-12-07 14:59 ` Martin Uecker
2024-12-07 15:10 ` Martin Uecker
2024-12-07 15:23 ` Vincent Mailhol
2024-12-07 18:07 ` David Laight
2024-12-06 9:34 ` David Laight
2024-12-02 17:33 ` [PATCH 03/10] compiler.h: add is_const_true() and is_const_false() Vincent Mailhol via B4 Relay
2024-12-04 18:48 ` David Laight
2024-12-05 15:48 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 04/10] linux/bits.h: simplify GENMASK_INPUT_CHECK() by using is_const_true() Vincent Mailhol via B4 Relay
2024-12-04 18:52 ` David Laight
2024-12-05 15:49 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 05/10] minmax: simplify __clamp_once() by using is_const_false() Vincent Mailhol via B4 Relay
2024-12-04 18:54 ` David Laight
2024-12-05 15:52 ` Vincent Mailhol
2024-12-09 12:32 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 06/10] fortify: replace __is_constexpr() by is_const() in strlen() Vincent Mailhol via B4 Relay
2024-12-04 18:58 ` David Laight
2024-12-05 15:53 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 07/10] overflow: replace __is_constexpr() by is_const() Vincent Mailhol via B4 Relay
2024-12-02 17:33 ` [PATCH 08/10] drm/i915/reg: replace __is_const_expr() by is_const_true() or is_const() Vincent Mailhol via B4 Relay
2024-12-04 19:00 ` David Laight
2024-12-05 15:56 ` Vincent Mailhol
2024-12-02 17:33 ` Vincent Mailhol via B4 Relay [this message]
2024-12-02 17:33 ` [PATCH 10/10] compiler.h: remove __is_constexpr() Vincent Mailhol via B4 Relay
2024-12-04 23:58 ` [PATCH 00/10] compiler.h: refactor __is_constexpr() into is_const{,_true,_false}() Kees Cook
2024-12-05 15:21 ` Vincent Mailhol
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