Re: [PATCH] Remove #define hex_asc from kernel.h, update lib/hexdump.c

[Randy Dunlap]

Joe Perches wrote:

On Thu, 2007-11-29 at 10:24 -0800, Randy Dunlap wrote:

I don't care for the mixed spaces/tabs.

I like myself, but I removed it just for you...

Thanks.  Acked-by: Randy Dunlap <[EMAIL PROTECTED]>

but needs an S-O-B:

What does (j < len) < linebuflen; do?

Nothing good.  It's a silly mistake.  I fixed it.

Size before/after:

   text    data     bss     dec     hex filename
   1037       0       0    1037     40d lib/hexdump.o
   1004       0       0    1004     3ec lib/hexdump.o

---

 include/linux/kernel.h |    1 -
 lib/hexdump.c          |   23 ++++++++++-------------
 2 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 94bc996..77b187f 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -256,7 +256,6 @@ extern void print_hex_dump(const char *level, const char 
*prefix_str,
                                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]

#define pr_emerg(fmt, arg...) \

        printk(KERN_EMERG fmt, ##arg)
diff --git a/lib/hexdump.c b/lib/hexdump.c
index bd5edae..125c137 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -41,7 +41,6 @@ void hex_dump_to_buffer(const void *buf, size_t len, int 
rowsize,
                        bool ascii)
 {
        const u8 *ptr = buf;
-       u8 ch;
        int j, lx = 0;
        int ascii_column;

@@ -62,7 +61,9 @@ void hex_dump_to_buffer(const void *buf, size_t len, int rowsize, for (j = 0; j < ngroups; j++)

                        lx += scnprintf(linebuf + lx, linebuflen - lx,
-                               "%16.16llx ", (unsigned long long)*(ptr8 + j));
+                                       "%016llx ",
+                                       (unsigned long long)*(ptr8 + j) &
+                                       0xffffffffffffffffULL);
                ascii_column = 17 * ngroups + 2;
                break;
        }
@@ -73,7 +74,7 @@ void hex_dump_to_buffer(const void *buf, size_t len, int 
rowsize,

for (j = 0; j < ngroups; j++)

                        lx += scnprintf(linebuf + lx, linebuflen - lx,
-                               "%8.8x ", *(ptr4 + j));
+                                       "%08x ", *(ptr4 + j) & 0xffffffffU);
                ascii_column = 9 * ngroups + 2;
                break;
        }
@@ -84,19 +85,15 @@ void hex_dump_to_buffer(const void *buf, size_t len, int 
rowsize,

for (j = 0; j < ngroups; j++)

                        lx += scnprintf(linebuf + lx, linebuflen - lx,
-                               "%4.4x ", *(ptr2 + j));
+                                       "%04x ", *(ptr2 + j) & 0xffff);
                ascii_column = 5 * ngroups + 2;
                break;
        }

default:

-               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++] = ' ';
-               }
+               for (j = 0; j < rowsize; j++)
+                       lx += scnprintf(linebuf + lx, linebuflen - lx,
+                                       "%02x ", ptr[j] & 0xff);
                ascii_column = 3 * rowsize + 2;
                break;
        }
@@ -192,6 +189,6 @@ void print_hex_dump_bytes(const char *prefix_str, int 
prefix_type,
                        const void *buf, size_t len)
 {
        print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, 16, 1,
-                       buf, len, 1);
+                       buf, len, true);
 }
 EXPORT_SYMBOL(print_hex_dump_bytes);

--
~Randy
-
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