linux-kernel - [PATCH v2 2/7] include/linux: change "__auto

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Message-ID: <20250720065045.2859105-3-hpa@zytor.com>
Date: Sat, 19 Jul 2025 23:50:39 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: 
Cc: "H. Peter Anvin" <hpa@...or.com>,
        Eugenio Pérez <eperezma@...hat.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
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        Al Viro <viro@...iv.linux.org.uk>, Alexei Starovoitov <ast@...nel.org>,
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        Andrew Morton <akpm@...ux-foundation.org>,
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Subject: [PATCH v2 2/7] include/linux: change "__auto_type" to "auto"

Replace instances of "__auto_type" with "auto" in include/linux.

Signed-off-by: H. Peter Anvin (Intel) <hpa@...or.com>
---
 include/linux/cleanup.h  | 6 +++---
 include/linux/compiler.h | 2 +-
 include/linux/minmax.h   | 6 +++---
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/linux/cleanup.h b/include/linux/cleanup.h
index 7093e1d08af0..c7f3031ae400 100644
--- a/include/linux/cleanup.h
+++ b/include/linux/cleanup.h
@@ -199,10 +199,10 @@
 
 #define __free(_name)	__cleanup(__free_##_name)
 
-#define __get_and_null(p, nullvalue)   \
+#define __get_and_null(p, nullvalue)	    \
 	({                                  \
-		__auto_type __ptr = &(p);   \
-		__auto_type __val = *__ptr; \
+		auto __ptr = &(p);	    \
+		auto __val = *__ptr;	    \
 		*__ptr = nullvalue;         \
 		__val;                      \
 	})
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 6f04a1d8c720..7fef5cd41dfc 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -186,7 +186,7 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
 #define data_race(expr)							\
 ({									\
 	__kcsan_disable_current();					\
-	__auto_type __v = (expr);					\
+	auto __v = (expr);						\
 	__kcsan_enable_current();					\
 	__v;								\
 })
diff --git a/include/linux/minmax.h b/include/linux/minmax.h
index eaaf5c008e4d..a0158db54a04 100644
--- a/include/linux/minmax.h
+++ b/include/linux/minmax.h
@@ -89,7 +89,7 @@
 	__cmp_once_unique(op, type, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_))
 
 #define __careful_cmp_once(op, x, y, ux, uy) ({		\
-	__auto_type ux = (x); __auto_type uy = (y);	\
+	auto ux = (x); auto uy = (y);			\
 	BUILD_BUG_ON_MSG(!__types_ok(ux, uy),		\
 		#op"("#x", "#y") signedness error");	\
 	__cmp(op, ux, uy); })
@@ -129,7 +129,7 @@
 	__careful_cmp(max, (x) + 0u + 0ul + 0ull, (y) + 0u + 0ul + 0ull)
 
 #define __careful_op3(op, x, y, z, ux, uy, uz) ({			\
-	__auto_type ux = (x); __auto_type uy = (y);__auto_type uz = (z);\
+	auto ux = (x); auto uy = (y); auto uz = (z);			\
 	BUILD_BUG_ON_MSG(!__types_ok3(ux, uy, uz),			\
 		#op"3("#x", "#y", "#z") signedness error");		\
 	__cmp(op, ux, __cmp(op, uy, uz)); })
@@ -203,7 +203,7 @@
  * This macro checks @val/@lo/@hi to make sure they have compatible
  * signedness.
  */
-#define clamp(val, lo, hi) __careful_clamp(__auto_type, val, lo, hi)
+#define clamp(val, lo, hi) __careful_clamp(auto, val, lo, hi)
 
 /**
  * clamp_t - return a value clamped to a given range using a given type
-- 
2.50.1