diff options
author | Douglas Raillard <douglas.raillard@arm.com> | 2017-01-26 15:54:44 +0000 |
---|---|---|
committer | Douglas Raillard <douglas.raillard@arm.com> | 2017-02-06 17:01:39 +0000 |
commit | 32f0d3c6c3fb1fb9353ec0b82ddb099281b9328c (patch) | |
tree | 2df3f2994752b3c23e269920026a40a5b8d11bb6 /drivers/partition | |
parent | 308d359b260d888f024a2d26c76cd4a50789e432 (diff) |
Replace some memset call by zeromem
Replace all use of memset by zeromem when zeroing moderately-sized
structure by applying the following transformation:
memset(x, 0, sizeof(x)) => zeromem(x, sizeof(x))
As the Trusted Firmware is compiled with -ffreestanding, it forbids the
compiler from using __builtin_memset and forces it to generate calls to
the slow memset implementation. Zeromem is a near drop in replacement
for this use case, with a more efficient implementation on both AArch32
and AArch64.
Change-Id: Ia7f3a90e888b96d056881be09f0b4d65b41aa79e
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
Diffstat (limited to 'drivers/partition')
-rw-r--r-- | drivers/partition/gpt.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/partition/gpt.c b/drivers/partition/gpt.c index 9240d5a7..05f13f34 100644 --- a/drivers/partition/gpt.c +++ b/drivers/partition/gpt.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -33,6 +33,7 @@ #include <errno.h> #include <gpt.h> #include <string.h> +#include <utils.h> static int unicode_to_ascii(unsigned short *str_in, unsigned char *str_out) { @@ -65,7 +66,7 @@ int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry) return -EINVAL; } - memset(entry, 0, sizeof(partition_entry_t)); + zeromem(entry, sizeof(partition_entry_t)); result = unicode_to_ascii(gpt_entry->name, (uint8_t *)entry->name); if (result != 0) { return result; |