1 files changed, 2 insertions, 59 deletions

diff --git a/lib/bitmap.c b/lib/bitmap.c
index a13c7f4e325a..e85040ba1f22 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -383,28 +383,7 @@ EXPORT_SYMBOL(bitmap_find_next_zero_area_off);
 int bitmap_scnprintf(char *buf, unsigned int buflen,
         const unsigned long *maskp, int nmaskbits)
 {
-        int i, word, bit, len = 0;
-        unsigned long val;
-        const char *sep = "";
-        int chunksz;
-        u32 chunkmask;
-
-        chunksz = nmaskbits & (CHUNKSZ - 1);
-        if (chunksz == 0)
-                chunksz = CHUNKSZ;
-
-        i = ALIGN(nmaskbits, CHUNKSZ) - CHUNKSZ;
-        for (; i >= 0; i -= CHUNKSZ) {
-                chunkmask = ((1ULL << chunksz) - 1);
-                word = i / BITS_PER_LONG;
-                bit = i % BITS_PER_LONG;
-                val = (maskp[word] >> bit) & chunkmask;
-                len += scnprintf(buf+len, buflen-len, "%s%0*lx", sep,
-                        (chunksz+3)/4, val);
-                chunksz = CHUNKSZ;
-                sep = ",";
-        }
-        return len;
+        return scnprintf(buf, buflen, "%*pb", nmaskbits, maskp);
 }
 EXPORT_SYMBOL(bitmap_scnprintf);
 
@@ -521,25 +500,6 @@ int bitmap_parse_user(const char __user *ubuf,
 }
 EXPORT_SYMBOL(bitmap_parse_user);
 
-/*
- * bscnl_emit(buf, buflen, rbot, rtop, bp)
- *
- * Helper routine for bitmap_scnlistprintf().  Write decimal number
- * or range to buf, suppressing output past buf+buflen, with optional
- * comma-prefix.  Return len of what was written to *buf, excluding the
- * trailing \0.
- */
-static inline int bscnl_emit(char *buf, int buflen, int rbot, int rtop, int len)
-{
-        if (len > 0)
-                len += scnprintf(buf + len, buflen - len, ",");
-        if (rbot == rtop)
-                len += scnprintf(buf + len, buflen - len, "%d", rbot);
-        else
-                len += scnprintf(buf + len, buflen - len, "%d-%d", rbot, rtop);
-        return len;
-}
-
 /**
  * bitmap_scnlistprintf - convert bitmap to list format ASCII string
  * @buf: byte buffer into which string is placed
@@ -559,24 +519,7 @@ static inline int bscnl_emit(char *buf, int buflen, int rbot, int rtop, int len)
 int bitmap_scnlistprintf(char *buf, unsigned int buflen,
         const unsigned long *maskp, int nmaskbits)
 {
-        int len = 0;
-        /* current bit is 'cur', most recently seen range is [rbot, rtop] */
-        int cur, rbot, rtop;
-
-        if (buflen == 0)
-                return 0;
-        buf[0] = 0;
-
-        rbot = cur = find_first_bit(maskp, nmaskbits);
-        while (cur < nmaskbits) {
-                rtop = cur;
-                cur = find_next_bit(maskp, nmaskbits, cur+1);
-                if (cur >= nmaskbits || cur > rtop + 1) {
-                        len = bscnl_emit(buf, buflen, rbot, rtop, len);
-                        rbot = cur;
-                }
-        }
-        return len;
+        return scnprintf(buf, buflen, "%*pbl", nmaskbits, maskp);
 }
 EXPORT_SYMBOL(bitmap_scnlistprintf);