The patch titled
lib: create common ascii hex array
has been added to the -mm tree. Its filename is
lib-create-common-ascii-hex-array.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: lib: create common ascii hex array
From: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Add a common hex array in hexdump.c so everyone can use it.
Add a common hi/lo helper to avoid the shifting masking that is
done to get the upper and lower nibbles of a byte value.
Pull the pack_hex_byte helper from kgdb as it is opencoded many
places in the tree that will be consolidated.
Signed-off-by: Harvey Harrison <harvey.harrison@xxxxxxxxx>
Acked-by: Paul Mundt <lethal@xxxxxxxxxxxx>
Cc: Jason Wessel <jason.wessel@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/sh/kernel/kgdb_stub.c | 8 --------
drivers/pnp/support.c | 8 ++++----
include/linux/kernel.h | 12 +++++++++++-
kernel/kgdb.c | 8 --------
lib/hexdump.c | 7 +++++--
5 files changed, 20 insertions(+), 23 deletions(-)
diff -puN arch/sh/kernel/kgdb_stub.c~lib-create-common-ascii-hex-array arch/sh/kernel/kgdb_stub.c
--- a/arch/sh/kernel/kgdb_stub.c~lib-create-common-ascii-hex-array
+++ a/arch/sh/kernel/kgdb_stub.c
@@ -330,14 +330,6 @@ static char *ebin_to_mem(const char *buf
return mem;
}
-/* Pack a hex byte */
-static char *pack_hex_byte(char *pkt, int byte)
-{
- *pkt++ = hexchars[(byte >> 4) & 0xf];
- *pkt++ = hexchars[(byte & 0xf)];
- return pkt;
-}
-
/* Scan for the start char '$', read the packet and check the checksum */
static void get_packet(char *buffer, int buflen)
{
diff -puN drivers/pnp/support.c~lib-create-common-ascii-hex-array drivers/pnp/support.c
--- a/drivers/pnp/support.c~lib-create-common-ascii-hex-array
+++ a/drivers/pnp/support.c
@@ -45,10 +45,10 @@ void pnp_eisa_id_to_string(u32 id, char
str[0] = 'A' + ((id >> 26) & 0x3f) - 1;
str[1] = 'A' + ((id >> 21) & 0x1f) - 1;
str[2] = 'A' + ((id >> 16) & 0x1f) - 1;
- str[3] = hex_asc((id >> 12) & 0xf);
- str[4] = hex_asc((id >> 8) & 0xf);
- str[5] = hex_asc((id >> 4) & 0xf);
- str[6] = hex_asc((id >> 0) & 0xf);
+ str[3] = hex_asc_hi(id >> 8);
+ str[4] = hex_asc_lo(id >> 8);
+ str[5] = hex_asc_hi(id);
+ str[6] = hex_asc_lo(id);
str[7] = '\0';
}
diff -puN include/linux/kernel.h~lib-create-common-ascii-hex-array include/linux/kernel.h
--- a/include/linux/kernel.h~lib-create-common-ascii-hex-array
+++ a/include/linux/kernel.h
@@ -276,7 +276,17 @@ extern void print_hex_dump(const char *l
const void *buf, size_t len, bool ascii);
extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
const void *buf, size_t len);
-#define hex_asc(x) "0123456789abcdef"[x]
+
+extern const char hex_asc[];
+#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
+#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4]
+
+static inline char *pack_hex_byte(char *buf, u8 byte)
+{
+ *buf++ = hex_asc_hi(byte);
+ *buf++ = hex_asc_lo(byte);
+ return buf;
+}
#define pr_emerg(fmt, arg...) \
printk(KERN_EMERG fmt, ##arg)
diff -puN kernel/kgdb.c~lib-create-common-ascii-hex-array kernel/kgdb.c
--- a/kernel/kgdb.c~lib-create-common-ascii-hex-array
+++ a/kernel/kgdb.c
@@ -347,14 +347,6 @@ static void put_packet(char *buffer)
}
}
-static char *pack_hex_byte(char *pkt, u8 byte)
-{
- *pkt++ = hexchars[byte >> 4];
- *pkt++ = hexchars[byte & 0xf];
-
- return pkt;
-}
-
/*
* Convert the memory pointed to by mem into hex, placing result in buf.
* Return a pointer to the last char put in buf (null). May return an error.
diff -puN lib/hexdump.c~lib-create-common-ascii-hex-array lib/hexdump.c
--- a/lib/hexdump.c~lib-create-common-ascii-hex-array
+++ a/lib/hexdump.c
@@ -12,6 +12,9 @@
#include <linux/kernel.h>
#include <linux/module.h>
+const char hex_asc[] = "0123456789abcdef";
+EXPORT_SYMBOL(hex_asc);
+
/**
* hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
* @buf: data blob to dump
@@ -93,8 +96,8 @@ void hex_dump_to_buffer(const void *buf,
for (j = 0; (j < rowsize) && (j < len) && (lx + 4) < linebuflen;
j++) {
ch = ptr[j];
- linebuf[lx++] = hex_asc(ch >> 4);
- linebuf[lx++] = hex_asc(ch & 0x0f);
+ linebuf[lx++] = hex_asc_hi(ch);
+ linebuf[lx++] = hex_asc_lo(ch);
linebuf[lx++] = ' ';
}
ascii_column = 3 * rowsize + 2;
_
Patches currently in -mm which might be from harvey.harrison@xxxxxxxxx are
mmc-make-one-bit-signed-bitfields-unsigned.patch
linux-next.patch
kgdb-use-put_unaligned_be32-helper.patch
cifs-remove-global_extern-macro.patch
media-use-get_unaligned_-helpers.patch
hid-use-get-put_unaligned_-helpers.patch
git-input.patch
ata-remove-fit-macro.patch
nfs-replace-remaining-__function__-occurrences.patch
parisc-replace-remaining-__function__-occurences.patch
drivers-parisc-replace-remaining-__function__-occurrences.patch
scsi-replace-remaining-__function__-occurrences.patch
fusion-replace-remaining-__function__-occurrences.patch
scsi-replace-__inline-with-inline.patch
scsi-use-get_unaligned_-helpers.patch
scsi-aic79xx_core-fix-shadowed-variables-add-statics.patch
scsi-aic79xx-aic79xx_pcic-fix-shadowed-variables.patch
block-use-get_unaligned_-helpers.patch
git-watchdog.patch
mac80211-michaelc-use-kernel-provided-infrastructure.patch
mac80211-introduce-struct-michael_mic_ctx-and-static-helpers.patch
mac80211-tkipc-use-kernel-provided-infrastructure.patch
mac80211-add-const-remove-unused-function-make-one-function-static.patch
mac80211-add-a-struct-to-hold-tkip-context.patch
mac80211-tkipc-use-struct-tkip_ctx-in-phase-1-key-mixing.patch
mac80211-tkipc-use-struct-tkip_ctx-in-phase-2-key-mixing.patch
b43-replace-limit_value-macro-with-clamp_val.patch
b43legacy-replace-limit_value-macro-with-clamp_val.patch
wireless-use-get-put_unaligned_-helpers.patch
xfs-use-get_unaligned_-helpers.patch
xtensa-replace-remaining-__function__-occurences.patch
lib-create-common-ascii-hex-array.patch
fs-ldm-use-get_unaligned_-helpers.patch
include-use-get-put_unaligned_-helpers.patch
lzo-use-get-put_unaligned_-helpers.patch
video-fix-integer-as-null-pointer-warnings.patch
scsi-use-the-common-hex_asc-array-rather-than-a-private-one.patch
ide-use-the-common-ascii-hex-helpers.patch
isdn-use-the-common-ascii-hex-helpers.patch
net-use-the-common-ascii-hex-helpers.patch
kgdb-use-the-common-ascii-hex-helpers.patch
cris-use-the-common-ascii-hex-helpers.patch
frv-use-the-common-ascii-hex-helpers.patch
mn10300-use-the-common-ascii-hex-helpers.patch
mips-use-the-common-ascii-hex-helpers.patch
sh-use-the-common-ascii-hex-helpers.patch
ppc-use-the-common-ascii-hex-helpers.patch
aacraid-linitc-make-aac_show_serial_number-static.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
