linux-kernel - [PATCH v2 16/20] linux/compiler.h, linux/array_size.h: Move __must_be_array() into <linux/array

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Message-Id: <20211120130104.185699-18-alx.manpages@gmail.com>
Date:   Sat, 20 Nov 2021 14:01:00 +0100
From:   Alejandro Colomar <alx.manpages@...il.com>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Alejandro Colomar <alx.manpages@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Arnd Bergmann <arnd@...db.de>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Kees Cook <keescook@...omium.org>,
        Joe Perches <joe@...ches.com>
Subject: [PATCH v2 16/20] linux/compiler.h, linux/array_size.h: Move __must_be_array() into <linux/array_size.h>

Signed-off-by: Alejandro Colomar <alx.manpages@...il.com>
---
 drivers/gpu/drm/i915/i915_utils.h           | 3 +++
 drivers/net/can/usb/etas_es58x/es58x_core.h | 3 +++
 include/linux/array_size.h                  | 6 +++++-
 include/linux/compiler.h                    | 3 ---
 include/linux/overflow.h                    | 3 +++
 5 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h
index 7a5925072466..f6fc1c72dfa7 100644
--- a/drivers/gpu/drm/i915/i915_utils.h
+++ b/drivers/gpu/drm/i915/i915_utils.h
@@ -25,6 +25,8 @@
 #ifndef __I915_UTILS_H
 #define __I915_UTILS_H
 
+
+#include <linux/array_size.h>
 #include <linux/list.h>
 #include <linux/overflow.h>
 #include <linux/sched.h>
@@ -32,6 +34,7 @@
 #include <linux/workqueue.h>
 #include <linux/sched/clock.h>
 
+
 struct drm_i915_private;
 struct timer_list;
 
diff --git a/drivers/net/can/usb/etas_es58x/es58x_core.h b/drivers/net/can/usb/etas_es58x/es58x_core.h
index 826a15871573..a18f4215aeef 100644
--- a/drivers/net/can/usb/etas_es58x/es58x_core.h
+++ b/drivers/net/can/usb/etas_es58x/es58x_core.h
@@ -12,6 +12,8 @@
 #ifndef __ES58X_COMMON_H__
 #define __ES58X_COMMON_H__
 
+
+#include <linux/array_size.h>
 #include <linux/types.h>
 #include <linux/usb.h>
 #include <linux/netdevice.h>
@@ -21,6 +23,7 @@
 #include "es581_4.h"
 #include "es58x_fd.h"
 
+
 /* Driver constants */
 #define ES58X_RX_URBS_MAX 5	/* Empirical value */
 #define ES58X_TX_URBS_MAX 6	/* Empirical value */
diff --git a/include/linux/array_size.h b/include/linux/array_size.h
index cba90f2248ef..c2b4fddba564 100644
--- a/include/linux/array_size.h
+++ b/include/linux/array_size.h
@@ -2,9 +2,13 @@
 #ifndef _LINUX_ARRAY_SIZE_H
 #define _LINUX_ARRAY_SIZE_H
 
-#include <linux/compiler.h>
+#include <linux/must_be.h>
+#include <linux/same_type.h>
 
 
+/* &a[0] degrades to a pointer: a different type from an array */
+#define __must_be_array(a)  __must_be(!__same_type((a), &(a)[0]))
+
 /**
  * ARRAY_SIZE - get the number of elements in array @a
  * @a: array to be sized
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 64d99335874d..9286310d4a8b 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -254,9 +254,6 @@ static inline void *offset_to_ptr(const int *off)
 
 #endif /* __ASSEMBLY__ */
 
-/* &a[0] degrades to a pointer: a different type from an array */
-#define __must_be_array(a)  __must_be(!__same_type((a), &(a)[0]))
-
 /*
  * This is needed in functions which generate the stack canary, see
  * arch/x86/kernel/smpboot.c::start_secondary() for an example.
diff --git a/include/linux/overflow.h b/include/linux/overflow.h
index 4669632bd72b..12c6f736bcd0 100644
--- a/include/linux/overflow.h
+++ b/include/linux/overflow.h
@@ -2,9 +2,12 @@
 #ifndef __LINUX_OVERFLOW_H
 #define __LINUX_OVERFLOW_H
 
+
+#include <linux/array_size.h>
 #include <linux/compiler.h>
 #include <linux/limits.h>
 
+
 /*
  * We need to compute the minimum and maximum values representable in a given
  * type. These macros may also be useful elsewhere. It would seem more obvious
-- 
2.33.1