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[09/10] coresight: etm4x: replace __is_const_expr() by is_const()

Message ID 20241203-is_constexpr-refactor-v1-9-4e4cbaecc216@wanadoo.fr (mailing list archive)
State New
Headers show
Series compiler.h: refactor __is_constexpr() into is_const{,_true,_false}() | expand

Commit Message

Vincent Mailhol via B4 Relay Dec. 2, 2024, 5:33 p.m. UTC 
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(-)
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Patch

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));	\