linux-kernel - [PATCH 5/5] tools/firmware/ihex2fw: Replace explicit alignment with ALIGN

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Message-Id: <20181221072841.30199-6-andrew.smirnov@gmail.com>
Date:   Thu, 20 Dec 2018 23:28:41 -0800
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     linux-kernel <linux-kernel@...r.kernel.org>
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Chris Healy <cphealy@...il.com>,
        Kyle McMartin <kyle@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 5/5] tools/firmware/ihex2fw: Replace explicit alignment with ALIGN

(X + 3) & ~3 is the same as ALIGN(X, 4), so replace all of the
instances of the formwer in the code with the latter. While at it,
introduce a helper variable 'record_size' to avoid duplicating length
calculatin code. No functional change intended.

Cc: Chris Healy <cphealy@...il.com>
Cc: Kyle McMartin <kyle@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc: David Woodhouse <dwmw2@...radead.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel <linux-kernel@...r.kernel.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
---
 tools/firmware/ihex2fw.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/firmware/ihex2fw.c b/tools/firmware/ihex2fw.c
index e081cef730d8..8925b60e51f5 100644
--- a/tools/firmware/ihex2fw.c
+++ b/tools/firmware/ihex2fw.c
@@ -135,6 +135,7 @@ int main(int argc, char **argv)
 static int process_ihex(uint8_t *data, ssize_t size)
 {
 	struct ihex_binrec *record;
+	size_t record_size;
 	uint32_t offset = 0;
 	uint32_t data32;
 	uint8_t type, crc = 0, crcbyte = 0;
@@ -161,12 +162,13 @@ static int process_ihex(uint8_t *data, ssize_t size)
 		len <<= 8;
 		len += hex(data + i, &crc); i += 2;
 	}
-	record = malloc((sizeof (*record) + len + 3) & ~3);
+	record_size = ALIGN(sizeof(*record) + len, 4);
+	record = malloc(record_size);
 	if (!record) {
 		fprintf(stderr, "out of memory for records\n");
 		return -ENOMEM;
 	}
-	memset(record, 0, (sizeof(*record) + len + 3) & ~3);
+	memset(record, 0, record_size);
 	record->len = len;
 
 	/* now check if we have enough data to read everything */
-- 
2.19.1