| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sun, 30 Nov 2014 16:29:21 +0530
From: Arjun Sreedharan <arjun024@...il.com>
To: David Howells <dhowells@...hat.com>
Cc: Koichi Yasutake <yasutake.koichi@...panasonic.com>,
linux-am33-list@...hat.com, linux-kernel@...r.kernel.org
Subject: [PATCH] mn10300: remove redundant hex()
replace rendundant hex() with kernel's hex_to_bin()
Signed-off-by: Arjun Sreedharan <arjun024@...il.com>
---
arch/mn10300/kernel/gdb-stub.c | 61 ++++++++++++++++--------------------------
1 file changed, 23 insertions(+), 38 deletions(-)
diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c
index a128c57..06adf39 100644
--- a/arch/mn10300/kernel/gdb-stub.c
+++ b/arch/mn10300/kernel/gdb-stub.c
@@ -176,27 +176,12 @@ static struct gdbstub_bkpt gdbstub_bkpts[256];
static void getpacket(char *buffer);
static int putpacket(char *buffer);
static int computeSignal(enum exception_code excep);
-static int hex(unsigned char ch);
static int hexToInt(char **ptr, int *intValue);
static unsigned char *mem2hex(const void *mem, char *buf, int count,
int may_fault);
static const char *hex2mem(const char *buf, void *_mem, int count,
int may_fault);
-/*
- * Convert ch from a hex digit to an int
- */
-static int hex(unsigned char ch)
-{
- if (ch >= 'a' && ch <= 'f')
- return ch - 'a' + 10;
- if (ch >= '0' && ch <= '9')
- return ch - '0';
- if (ch >= 'A' && ch <= 'F')
- return ch - 'A' + 10;
- return -1;
-}
-
#ifdef CONFIG_GDBSTUB_DEBUGGING
void debug_to_serial(const char *p, int n)
@@ -283,12 +268,12 @@ static void getpacket(char *buffer)
ret = gdbstub_io_rx_char(&ch, 0);
if (ret < 0)
error = ret;
- xmitcsum = hex(ch) << 4;
+ xmitcsum = hex_to_bin(ch) << 4;
ret = gdbstub_io_rx_char(&ch, 0);
if (ret < 0)
error = ret;
- xmitcsum |= hex(ch);
+ xmitcsum |= hex_to_bin(ch);
if (error) {
if (error == -EIO)
@@ -391,7 +376,7 @@ static int hexToInt(char **ptr, int *intValue)
*intValue = 0;
while (**ptr) {
- hexValue = hex(**ptr);
+ hexValue = hex_to_bin(**ptr);
if (hexValue < 0)
break;
@@ -857,8 +842,8 @@ const char *hex2mem(const char *buf, void *_mem, int count, int may_fault)
} ch;
if ((u32) mem & 1 && count >= 1) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
+ ch.b[0] = hex_to_bin(*buf++) << 4;
+ ch.b[0] |= hex_to_bin(*buf++);
if (gdbstub_write_byte(ch.val, mem) != 0)
return 0;
mem++;
@@ -866,10 +851,10 @@ const char *hex2mem(const char *buf, void *_mem, int count, int may_fault)
}
if ((u32) mem & 3 && count >= 2) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- ch.b[1] = hex(*buf++) << 4;
- ch.b[1] |= hex(*buf++);
+ ch.b[0] = hex_to_bin(*buf++) << 4;
+ ch.b[0] |= hex_to_bin(*buf++);
+ ch.b[1] = hex_to_bin(*buf++) << 4;
+ ch.b[1] |= hex_to_bin(*buf++);
if (gdbstub_write_word(ch.val, mem) != 0)
return 0;
mem += 2;
@@ -877,14 +862,14 @@ const char *hex2mem(const char *buf, void *_mem, int count, int may_fault)
}
while (count >= 4) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- ch.b[1] = hex(*buf++) << 4;
- ch.b[1] |= hex(*buf++);
- ch.b[2] = hex(*buf++) << 4;
- ch.b[2] |= hex(*buf++);
- ch.b[3] = hex(*buf++) << 4;
- ch.b[3] |= hex(*buf++);
+ ch.b[0] = hex_to_bin(*buf++) << 4;
+ ch.b[0] |= hex_to_bin(*buf++);
+ ch.b[1] = hex_to_bin(*buf++) << 4;
+ ch.b[1] |= hex_to_bin(*buf++);
+ ch.b[2] = hex_to_bin(*buf++) << 4;
+ ch.b[2] |= hex_to_bin(*buf++);
+ ch.b[3] = hex_to_bin(*buf++) << 4;
+ ch.b[3] |= hex_to_bin(*buf++);
if (gdbstub_write_dword(ch.val, mem) != 0)
return 0;
mem += 4;
@@ -892,10 +877,10 @@ const char *hex2mem(const char *buf, void *_mem, int count, int may_fault)
}
if (count >= 2) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
- ch.b[1] = hex(*buf++) << 4;
- ch.b[1] |= hex(*buf++);
+ ch.b[0] = hex_to_bin(*buf++) << 4;
+ ch.b[0] |= hex_to_bin(*buf++);
+ ch.b[1] = hex_to_bin(*buf++) << 4;
+ ch.b[1] |= hex_to_bin(*buf++);
if (gdbstub_write_word(ch.val, mem) != 0)
return 0;
mem += 2;
@@ -903,8 +888,8 @@ const char *hex2mem(const char *buf, void *_mem, int count, int may_fault)
}
if (count >= 1) {
- ch.b[0] = hex(*buf++) << 4;
- ch.b[0] |= hex(*buf++);
+ ch.b[0] = hex_to_bin(*buf++) << 4;
+ ch.b[0] |= hex_to_bin(*buf++);
if (gdbstub_write_byte(ch.val, mem) != 0)
return 0;
}
--
1.7.11.7
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists