Remove unused code from MPI library

[firefly-linux-kernel-4.4.55.git] / lib / mpi / mpicoder.c

diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index f26b41fcb48c694c06fdcea18b55bdfd3788fb6d..f0fa659958002ca824d47144e6ecba3fdcdc7e38 100644 (file)
--- a/lib/mpi/mpicoder.c
+++ b/lib/mpi/mpicoder.c
@@ -73,81 +73,6 @@ leave:
 }
 EXPORT_SYMBOL_GPL(mpi_read_from_buffer);
 
-/****************
- * Make an mpi from a character string.
- */
-int mpi_fromstr(MPI val, const char *str)
-{
-       int hexmode = 0, sign = 0, prepend_zero = 0, i, j, c, c1, c2;
-       unsigned nbits, nbytes, nlimbs;
-       mpi_limb_t a;
-
-       if (*str == '-') {
-               sign = 1;
-               str++;
-       }
-       if (*str == '0' && str[1] == 'x')
-               hexmode = 1;
-       else
-               return -EINVAL; /* other bases are not yet supported */
-       str += 2;
-
-       nbits = strlen(str) * 4;
-       if (nbits % 8)
-               prepend_zero = 1;
-       nbytes = (nbits + 7) / 8;
-       nlimbs = (nbytes + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB;
-       if (val->alloced < nlimbs)
-               if (!mpi_resize(val, nlimbs))
-                       return -ENOMEM;
-       i = BYTES_PER_MPI_LIMB - nbytes % BYTES_PER_MPI_LIMB;
-       i %= BYTES_PER_MPI_LIMB;
-       j = val->nlimbs = nlimbs;
-       val->sign = sign;
-       for (; j > 0; j--) {
-               a = 0;
-               for (; i < BYTES_PER_MPI_LIMB; i++) {
-                       if (prepend_zero) {
-                               c1 = '0';
-                               prepend_zero = 0;
-                       } else
-                               c1 = *str++;
-                       assert(c1);
-                       c2 = *str++;
-                       assert(c2);
-                       if (c1 >= '0' && c1 <= '9')
-                               c = c1 - '0';
-                       else if (c1 >= 'a' && c1 <= 'f')
-                               c = c1 - 'a' + 10;
-                       else if (c1 >= 'A' && c1 <= 'F')
-                               c = c1 - 'A' + 10;
-                       else {
-                               mpi_clear(val);
-                               return 1;
-                       }
-                       c <<= 4;
-                       if (c2 >= '0' && c2 <= '9')
-                               c |= c2 - '0';
-                       else if (c2 >= 'a' && c2 <= 'f')
-                               c |= c2 - 'a' + 10;
-                       else if (c2 >= 'A' && c2 <= 'F')
-                               c |= c2 - 'A' + 10;
-                       else {
-                               mpi_clear(val);
-                               return 1;
-                       }
-                       a <<= 8;
-                       a |= c;
-               }
-               i = 0;
-
-               val->d[j - 1] = a;
-       }
-
-       return 0;
-}
-EXPORT_SYMBOL_GPL(mpi_fromstr);
-
 /****************
  * Return an allocated buffer with the MPI (msb first).
  * NBYTES receives the length of this buffer. Caller must free the