linux-kernel - [PATCH v3 1/3] MIPS: OCTEON: Replace SIZEOF

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Message-Id: <20191029224756.28618-2-keescook@chromium.org>
Date:   Tue, 29 Oct 2019 15:47:54 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Kees Cook <keescook@...omium.org>,
        Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@...el.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Randy Dunlap <rdunlap@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        netdev@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/3] MIPS: OCTEON: Replace SIZEOF_FIELD() macro

From: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@...el.com>

In preparation for switching to a standard sizeof_member() macro to find the
size of a member of a struct, remove the custom SIZEOF_FIELD() macro and use
the more common FIELD_SIZEOF() instead. Later patches will globally replace
FIELD_SIZEOF() and sizeof_field() with the more accurate sizeof_member().

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@...el.com>
Link: https://lore.kernel.org/r/20190924105839.110713-4-pankaj.laxminarayan.bharadiya@intel.com
Co-developed-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Kees Cook <keescook@...omium.org>
---
 arch/mips/cavium-octeon/executive/cvmx-bootmem.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
index ba8f82a29a81..44b506a14666 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
@@ -44,13 +44,6 @@ static struct cvmx_bootmem_desc *cvmx_bootmem_desc;
 
 /* See header file for descriptions of functions */
 
-/**
- * This macro returns the size of a member of a structure.
- * Logically it is the same as "sizeof(s::field)" in C++, but
- * C lacks the "::" operator.
- */
-#define SIZEOF_FIELD(s, field) sizeof(((s *)NULL)->field)
-
 /**
  * This macro returns a member of the
  * cvmx_bootmem_named_block_desc_t structure. These members can't
@@ -65,7 +58,7 @@ static struct cvmx_bootmem_desc *cvmx_bootmem_desc;
 #define CVMX_BOOTMEM_NAMED_GET_FIELD(addr, field)			\
 	__cvmx_bootmem_desc_get(addr,					\
 		offsetof(struct cvmx_bootmem_named_block_desc, field),	\
-		SIZEOF_FIELD(struct cvmx_bootmem_named_block_desc, field))
+		FIELD_SIZEOF(struct cvmx_bootmem_named_block_desc, field))
 
 /**
  * This function is the implementation of the get macros defined
-- 
2.17.1