linux-kernel - [PATCH rdma-next] overflow: Include header file with SIZE

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Message-Id: <20200913102928.134985-1-leon@kernel.org>
Date:   Sun, 13 Sep 2020 13:29:28 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>
Cc:     Leon Romanovsky <leonro@...dia.com>,
        Kees Cook <keescook@...omium.org>,
        linux-kernel@...r.kernel.org,
        RDMA mailing list <linux-rdma@...r.kernel.org>
Subject: [PATCH rdma-next] overflow: Include header file with SIZE_MAX declaration

From: Leon Romanovsky <leonro@...dia.com>

The various array_size functions use SIZE_MAX define, but missed limits.h
causes to failure to compile code that needs overflow.h.

 In file included from drivers/infiniband/core/uverbs_std_types_device.c:6:
 ./include/linux/overflow.h: In function 'array_size':
 ./include/linux/overflow.h:258:10: error: 'SIZE_MAX' undeclared (first use in this function)
   258 |   return SIZE_MAX;
       |          ^~~~~~~~

Fixes: 610b15c50e86 ("overflow.h: Add allocation size calculation helpers")
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
 include/linux/overflow.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/overflow.h b/include/linux/overflow.h
index 93fcef105061..ff3c48f0abc5 100644
--- a/include/linux/overflow.h
+++ b/include/linux/overflow.h
@@ -3,6 +3,7 @@
 #define __LINUX_OVERFLOW_H

 #include <linux/compiler.h>
+#include <linux/limits.h>

 /*
  * In the fallback code below, we need to compute the minimum and
--
2.26.2