mpilib: use DIV_ROUND_UP and remove unused macros

Remove MIN, MAX and ABS macros that are duplicates kernel's native
implementation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

diff --git a/lib/mpi/mpi-internal.h b/lib/mpi/mpi-internal.h
index 77adcf6..60cf765 100644 (file)
--- a/lib/mpi/mpi-internal.h
+++ b/lib/mpi/mpi-internal.h
@@ -65,10 +65,6 @@
 typedef mpi_limb_t *mpi_ptr_t; /* pointer to a limb */
 typedef int mpi_size_t;                /* (must be a signed type) */
 
-#define ABS(x) (x >= 0 ? x : -x)
-#define MIN(l, o) ((l) < (o) ? (l) : (o))
-#define MAX(h, i) ((h) > (i) ? (h) : (i))
-
 static inline int RESIZE_IF_NEEDED(MPI a, unsigned b)
 {
        if (a->alloced < b)

diff --git a/lib/mpi/mpicoder.c b/lib/mpi/mpicoder.c
index 3962b7f..5f9c44c 100644 (file)
--- a/lib/mpi/mpicoder.c
+++ b/lib/mpi/mpicoder.c
@@ -52,7 +52,7 @@ MPI mpi_read_raw_data(const void *xbuffer, size_t nbytes)
        else
                nbits = 0;
 
-       nlimbs = (nbytes + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB;
+       nlimbs = DIV_ROUND_UP(nbytes, BYTES_PER_MPI_LIMB);
        val = mpi_alloc(nlimbs);
        if (!val)
                return NULL;
@@ -96,8 +96,8 @@ MPI mpi_read_from_buffer(const void *xbuffer, unsigned *ret_nread)
        buffer += 2;
        nread = 2;
 
-       nbytes = (nbits + 7) / 8;
-       nlimbs = (nbytes + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB;
+       nbytes = DIV_ROUND_UP(nbits, 8);
+       nlimbs = DIV_ROUND_UP(nbytes, BYTES_PER_MPI_LIMB);
        val = mpi_alloc(nlimbs);
        if (!val)
                return NULL;
@@ -193,7 +193,7 @@ int mpi_set_buffer(MPI a, const void *xbuffer, unsigned nbytes, int sign)
        int nlimbs;
        int i;
 
-       nlimbs = (nbytes + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB;
+       nlimbs = DIV_ROUND_UP(nbytes, BYTES_PER_MPI_LIMB);
        if (RESIZE_IF_NEEDED(a, nlimbs) < 0)
                return -ENOMEM;
        a->sign = sign;