linux-kernel - [PATCH 5.4 242/408] overflow: Include header file with SIZE

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Message-Id: <20201027135506.277657651@linuxfoundation.org>
Date:   Tue, 27 Oct 2020 14:53:00 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Leon Romanovsky <leonro@...dia.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 242/408] overflow: Include header file with SIZE_MAX declaration

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

[ Upstream commit a4947e84f23474803b62a2759b5808147e4e15f9 ]

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")
Link: https://lore.kernel.org/r/20200913102928.134985-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/linux/overflow.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/overflow.h b/include/linux/overflow.h
index 659045046468f..50c93ca0c3d6f 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
-- 
2.25.1