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From: Alexey Dobriyan <adobriyan@gmail.com>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] add typeof_member() macro
Date: Wed, 29 May 2019 22:07:20 +0300	[thread overview]
Message-ID: <20190529190720.GA5703@avx2> (raw)

Add typeof_member() macro so that types can be exctracted without
introducing dummy variables.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---

 include/linux/kernel.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -88,6 +88,8 @@
  */
 #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
 
+#define typeof_member(T, m)	typeof(((T*)0)->m)
+
 #define DIV_ROUND_UP __KERNEL_DIV_ROUND_UP
 
 #define DIV_ROUND_DOWN_ULL(ll, d) \

             reply	other threads:[~2019-05-29 19:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29 19:07 Alexey Dobriyan [this message]
2019-05-29 19:11 ` [PATCH 2/2] proc: use " Alexey Dobriyan
2019-05-29 22:33   ` Andrew Morton
2019-05-30 11:37 ` [PATCH 1/2] add " David Laight
2019-05-30 11:53   ` Joe Perches
2019-05-30 19:57   ` Alexey Dobriyan

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