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authorVasily Averin <vvs@virtuozzo.com>2018-06-07 17:10:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-07 17:34:39 -0700
commitcbdc61ae1fa5d824fcfd59282b040f21144999ab (patch)
treef9b6b0a6630ec2019fcb0aceaad5aebf38fd2071 /lib
parent804209d8a0096d9ed8c9891f987f42bc1a98b8f9 (diff)
downloadlinux-0-day-cbdc61ae1fa5d824fcfd59282b040f21144999ab.tar.gz
linux-0-day-cbdc61ae1fa5d824fcfd59282b040f21144999ab.tar.xz
lib/mpi: headers cleanup
MPI headers contain definitions for huge number of non-existing functions. Most part of these functions was removed in 2012 by Dmitry Kasatkin - 7cf4206a99d1 ("Remove unused code from MPI library") - 9e235dcaf4f6 ("Revert "crypto: GnuPG based MPI lib - additional ...") - bc95eeadf5c6 ("lib/mpi: removed unused functions") however headers wwere not updated properly. Also I deleted some unused macros. Link: http://lkml.kernel.org/r/fb2fc1ef-1185-f0a3-d8d0-173d2f97bbaf@virtuozzo.com Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Dmitry Kasatkin <dmitry.kasatkin@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/mpi/mpi-internal.h75
1 files changed, 5 insertions, 70 deletions
diff --git a/lib/mpi/mpi-internal.h b/lib/mpi/mpi-internal.h
index 7eceeddb3fb8..c2d6f4efcfbc 100644
--- a/lib/mpi/mpi-internal.h
+++ b/lib/mpi/mpi-internal.h
@@ -65,13 +65,6 @@
typedef mpi_limb_t *mpi_ptr_t; /* pointer to a limb */
typedef int mpi_size_t; /* (must be a signed type) */
-static inline int RESIZE_IF_NEEDED(MPI a, unsigned b)
-{
- if (a->alloced < b)
- return mpi_resize(a, b);
- return 0;
-}
-
/* Copy N limbs from S to D. */
#define MPN_COPY(d, s, n) \
do { \
@@ -80,13 +73,6 @@ static inline int RESIZE_IF_NEEDED(MPI a, unsigned b)
(d)[_i] = (s)[_i]; \
} while (0)
-#define MPN_COPY_INCR(d, s, n) \
- do { \
- mpi_size_t _i; \
- for (_i = 0; _i < (n); _i++) \
- (d)[_i] = (s)[_i]; \
- } while (0)
-
#define MPN_COPY_DECR(d, s, n) \
do { \
mpi_size_t _i; \
@@ -111,15 +97,6 @@ static inline int RESIZE_IF_NEEDED(MPI a, unsigned b)
} \
} while (0)
-#define MPN_NORMALIZE_NOT_ZERO(d, n) \
- do { \
- for (;;) { \
- if ((d)[(n)-1]) \
- break; \
- (n)--; \
- } \
- } while (0)
-
#define MPN_MUL_N_RECURSE(prodp, up, vp, size, tspace) \
do { \
if ((size) < KARATSUBA_THRESHOLD) \
@@ -128,46 +105,11 @@ static inline int RESIZE_IF_NEEDED(MPI a, unsigned b)
mul_n(prodp, up, vp, size, tspace); \
} while (0);
-/* Divide the two-limb number in (NH,,NL) by D, with DI being the largest
- * limb not larger than (2**(2*BITS_PER_MP_LIMB))/D - (2**BITS_PER_MP_LIMB).
- * If this would yield overflow, DI should be the largest possible number
- * (i.e., only ones). For correct operation, the most significant bit of D
- * has to be set. Put the quotient in Q and the remainder in R.
- */
-#define UDIV_QRNND_PREINV(q, r, nh, nl, d, di) \
- do { \
- mpi_limb_t _q, _ql, _r; \
- mpi_limb_t _xh, _xl; \
- umul_ppmm(_q, _ql, (nh), (di)); \
- _q += (nh); /* DI is 2**BITS_PER_MPI_LIMB too small */ \
- umul_ppmm(_xh, _xl, _q, (d)); \
- sub_ddmmss(_xh, _r, (nh), (nl), _xh, _xl); \
- if (_xh) { \
- sub_ddmmss(_xh, _r, _xh, _r, 0, (d)); \
- _q++; \
- if (_xh) { \
- sub_ddmmss(_xh, _r, _xh, _r, 0, (d)); \
- _q++; \
- } \
- } \
- if (_r >= (d)) { \
- _r -= (d); \
- _q++; \
- } \
- (r) = _r; \
- (q) = _q; \
- } while (0)
-
/*-- mpiutil.c --*/
mpi_ptr_t mpi_alloc_limb_space(unsigned nlimbs);
void mpi_free_limb_space(mpi_ptr_t a);
void mpi_assign_limb_space(MPI a, mpi_ptr_t ap, unsigned nlimbs);
-/*-- mpi-bit.c --*/
-void mpi_rshift_limbs(MPI a, unsigned int count);
-int mpi_lshift_limbs(MPI a, unsigned int count);
-
-/*-- mpihelp-add.c --*/
static inline mpi_limb_t mpihelp_add_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
mpi_size_t s1_size, mpi_limb_t s2_limb);
mpi_limb_t mpihelp_add_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
@@ -175,7 +117,6 @@ mpi_limb_t mpihelp_add_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
static inline mpi_limb_t mpihelp_add(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
mpi_ptr_t s2_ptr, mpi_size_t s2_size);
-/*-- mpihelp-sub.c --*/
static inline mpi_limb_t mpihelp_sub_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
mpi_size_t s1_size, mpi_limb_t s2_limb);
mpi_limb_t mpihelp_sub_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
@@ -183,10 +124,10 @@ mpi_limb_t mpihelp_sub_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
static inline mpi_limb_t mpihelp_sub(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
mpi_ptr_t s2_ptr, mpi_size_t s2_size);
-/*-- mpihelp-cmp.c --*/
+/*-- mpih-cmp.c --*/
int mpihelp_cmp(mpi_ptr_t op1_ptr, mpi_ptr_t op2_ptr, mpi_size_t size);
-/*-- mpihelp-mul.c --*/
+/*-- mpih-mul.c --*/
struct karatsuba_ctx {
struct karatsuba_ctx *next;
@@ -202,7 +143,6 @@ mpi_limb_t mpihelp_addmul_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
mpi_size_t s1_size, mpi_limb_t s2_limb);
mpi_limb_t mpihelp_submul_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
mpi_size_t s1_size, mpi_limb_t s2_limb);
-int mpihelp_mul_n(mpi_ptr_t prodp, mpi_ptr_t up, mpi_ptr_t vp, mpi_size_t size);
int mpihelp_mul(mpi_ptr_t prodp, mpi_ptr_t up, mpi_size_t usize,
mpi_ptr_t vp, mpi_size_t vsize, mpi_limb_t *_result);
void mpih_sqr_n_basecase(mpi_ptr_t prodp, mpi_ptr_t up, mpi_size_t size);
@@ -214,21 +154,16 @@ int mpihelp_mul_karatsuba_case(mpi_ptr_t prodp,
mpi_ptr_t vp, mpi_size_t vsize,
struct karatsuba_ctx *ctx);
-/*-- mpihelp-mul_1.c (or xxx/cpu/ *.S) --*/
+/*-- generic_mpih-mul1.c --*/
mpi_limb_t mpihelp_mul_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
mpi_size_t s1_size, mpi_limb_t s2_limb);
-/*-- mpihelp-div.c --*/
-mpi_limb_t mpihelp_mod_1(mpi_ptr_t dividend_ptr, mpi_size_t dividend_size,
- mpi_limb_t divisor_limb);
+/*-- mpih-div.c --*/
mpi_limb_t mpihelp_divrem(mpi_ptr_t qp, mpi_size_t qextra_limbs,
mpi_ptr_t np, mpi_size_t nsize,
mpi_ptr_t dp, mpi_size_t dsize);
-mpi_limb_t mpihelp_divmod_1(mpi_ptr_t quot_ptr,
- mpi_ptr_t dividend_ptr, mpi_size_t dividend_size,
- mpi_limb_t divisor_limb);
-/*-- mpihelp-shift.c --*/
+/*-- generic_mpih-[lr]shift.c --*/
mpi_limb_t mpihelp_lshift(mpi_ptr_t wp, mpi_ptr_t up, mpi_size_t usize,
unsigned cnt);
mpi_limb_t mpihelp_rshift(mpi_ptr_t wp, mpi_ptr_t up, mpi_size_t usize,