lib/mpi: purge mpi_set_buffer()

mpi_set_buffer() has no in-tree users and similar functionality is provided
by mpi_read_raw_data().

Remove mpi_set_buffer().

Signed-off-by: Nicolai Stange <nicstange@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/include/linux/mpi.h b/include/linux/mpi.h
index 3a5abe9..f219559 100644 (file)
--- a/include/linux/mpi.h
+++ b/include/linux/mpi.h
@@ -80,7 +80,6 @@ void *mpi_get_buffer(MPI a, unsigned *nbytes, int *sign);
 int mpi_read_buffer(MPI a, uint8_t *buf, unsigned buf_len, unsigned *nbytes,
                    int *sign);
 void *mpi_get_secure_buffer(MPI a, unsigned *nbytes, int *sign);
-int mpi_set_buffer(MPI a, const void *buffer, unsigned nbytes, int sign);
 int mpi_write_to_sgl(MPI a, struct scatterlist *sg, unsigned *nbytes,
                     int *sign);
 

diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index 747606f..c742033 100644 (file)
--- a/lib/mpi/mpicoder.c
+++ b/lib/mpi/mpicoder.c
@@ -250,82 +250,6 @@ void *mpi_get_buffer(MPI a, unsigned *nbytes, int *sign)
 }
 EXPORT_SYMBOL_GPL(mpi_get_buffer);
 
-/****************
- * Use BUFFER to update MPI.
- */
-int mpi_set_buffer(MPI a, const void *xbuffer, unsigned nbytes, int sign)
-{
-       const uint8_t *buffer = xbuffer, *p;
-       mpi_limb_t alimb;
-       int nlimbs;
-       int i;
-
-       nlimbs = DIV_ROUND_UP(nbytes, BYTES_PER_MPI_LIMB);
-       if (RESIZE_IF_NEEDED(a, nlimbs) < 0)
-               return -ENOMEM;
-       a->sign = sign;
-
-       for (i = 0, p = buffer + nbytes - 1; p >= buffer + BYTES_PER_MPI_LIMB;) {
-#if BYTES_PER_MPI_LIMB == 4
-               alimb = (mpi_limb_t) *p--;
-               alimb |= (mpi_limb_t) *p-- << 8;
-               alimb |= (mpi_limb_t) *p-- << 16;
-               alimb |= (mpi_limb_t) *p-- << 24;
-#elif BYTES_PER_MPI_LIMB == 8
-               alimb = (mpi_limb_t) *p--;
-               alimb |= (mpi_limb_t) *p-- << 8;
-               alimb |= (mpi_limb_t) *p-- << 16;
-               alimb |= (mpi_limb_t) *p-- << 24;
-               alimb |= (mpi_limb_t) *p-- << 32;
-               alimb |= (mpi_limb_t) *p-- << 40;
-               alimb |= (mpi_limb_t) *p-- << 48;
-               alimb |= (mpi_limb_t) *p-- << 56;
-#else
-#error please implement for this limb size.
-#endif
-               a->d[i++] = alimb;
-       }
-       if (p >= buffer) {
-#if BYTES_PER_MPI_LIMB == 4
-               alimb = *p--;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 8;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 16;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 24;
-#elif BYTES_PER_MPI_LIMB == 8
-               alimb = (mpi_limb_t) *p--;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 8;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 16;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 24;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 32;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 40;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 48;
-               if (p >= buffer)
-                       alimb |= (mpi_limb_t) *p-- << 56;
-#else
-#error please implement for this limb size.
-#endif
-               a->d[i++] = alimb;
-       }
-       a->nlimbs = i;
-
-       if (i != nlimbs) {
-               pr_emerg("MPI: mpi_set_buffer: Assertion failed (%d != %d)", i,
-                      nlimbs);
-               BUG();
-       }
-       return 0;
-}
-EXPORT_SYMBOL_GPL(mpi_set_buffer);
-
 /**
  * mpi_write_to_sgl() - Funnction exports MPI to an sgl (msb first)
  *