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Message-ID: <1430409677-13284-4-git-send-email-cmetcalf@ezchip.com>
Date: Thu, 30 Apr 2015 12:01:17 -0400
From: Chris Metcalf <cmetcalf@...hip.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
CC: Chris Metcalf <cmetcalf@...hip.com>,
Al Viro <viro@...iv.linux.org.uk>,
Fabian Frederick <fabf@...net.be>,
Randy Dunlap <rdunlap@...radead.org>,
Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
<gregkh@...uxfoundation.org>,
Peter Zijlstra <peterz@...radead.org>,
"David S. Miller" <davem@...emloft.net>,
Frederic Weisbecker <fweisbec@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Sam Ravnborg <sam@...nborg.org>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Theodore Ts'o <tytso@....edu>,
"Grant Likely" <grant.likely@...aro.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
<linux-arch@...r.kernel.org>
Subject: [PATCH 3/3] tile: use global strscpy() rather than private copy
Now that strscpy() is a standard API, remove the local copy.
Signed-off-by: Chris Metcalf <cmetcalf@...hip.com>
---
arch/tile/gxio/mpipe.c | 33 ++++-----------------------------
1 file changed, 4 insertions(+), 29 deletions(-)
diff --git a/arch/tile/gxio/mpipe.c b/arch/tile/gxio/mpipe.c
index ee186e13dfe6..f102048d9c0e 100644
--- a/arch/tile/gxio/mpipe.c
+++ b/arch/tile/gxio/mpipe.c
@@ -19,6 +19,7 @@
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/module.h>
+#include <linux/string.h>
#include <gxio/iorpc_globals.h>
#include <gxio/iorpc_mpipe.h>
@@ -29,32 +30,6 @@
/* HACK: Avoid pointless "shadow" warnings. */
#define link link_shadow
-/**
- * strscpy - Copy a C-string into a sized buffer, but only if it fits
- * @dest: Where to copy the string to
- * @src: Where to copy the string from
- * @size: size of destination buffer
- *
- * Use this routine to avoid copying too-long strings.
- * The routine returns the total number of bytes copied
- * (including the trailing NUL) or zero if the buffer wasn't
- * big enough. To ensure that programmers pay attention
- * to the return code, the destination has a single NUL
- * written at the front (if size is non-zero) when the
- * buffer is not big enough.
- */
-static size_t strscpy(char *dest, const char *src, size_t size)
-{
- size_t len = strnlen(src, size) + 1;
- if (len > size) {
- if (size)
- dest[0] = '\0';
- return 0;
- }
- memcpy(dest, src, len);
- return len;
-}
-
int gxio_mpipe_init(gxio_mpipe_context_t *context, unsigned int mpipe_index)
{
char file[32];
@@ -540,7 +515,7 @@ int gxio_mpipe_link_instance(const char *link_name)
if (!context)
return GXIO_ERR_NO_DEVICE;
- if (strscpy(name.name, link_name, sizeof(name.name)) == 0)
+ if (strscpy(name.name, link_name, sizeof(name.name)) < 0)
return GXIO_ERR_NO_DEVICE;
return gxio_mpipe_info_instance_aux(context, name);
@@ -559,7 +534,7 @@ int gxio_mpipe_link_enumerate_mac(int idx, char *link_name, uint8_t *link_mac)
rv = gxio_mpipe_info_enumerate_aux(context, idx, &name, &mac);
if (rv >= 0) {
- if (strscpy(link_name, name.name, sizeof(name.name)) == 0)
+ if (strscpy(link_name, name.name, sizeof(name.name)) < 0)
return GXIO_ERR_INVAL_MEMORY_SIZE;
memcpy(link_mac, mac.mac, sizeof(mac.mac));
}
@@ -576,7 +551,7 @@ int gxio_mpipe_link_open(gxio_mpipe_link_t *link,
_gxio_mpipe_link_name_t name;
int rv;
- if (strscpy(name.name, link_name, sizeof(name.name)) == 0)
+ if (strscpy(name.name, link_name, sizeof(name.name)) < 0)
return GXIO_ERR_NO_DEVICE;
rv = gxio_mpipe_link_open_aux(context, name, flags);
--
2.1.2
--
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