337 			   struct karatsuba_ctx *ctx)  in mpihelp_mul_karatsuba_case()  argument
341 	if (!ctx->tspace || ctx->tspace_size < vsize) {  in mpihelp_mul_karatsuba_case()
342 		if (ctx->tspace)  in mpihelp_mul_karatsuba_case()
343 			mpi_free_limb_space(ctx->tspace);  in mpihelp_mul_karatsuba_case()
344 		ctx->tspace = mpi_alloc_limb_space(2 * vsize);  in mpihelp_mul_karatsuba_case()
345 		if (!ctx->tspace)  in mpihelp_mul_karatsuba_case()
347 		ctx->tspace_size = vsize;  in mpihelp_mul_karatsuba_case()
350 	MPN_MUL_N_RECURSE(prodp, up, vp, vsize, ctx->tspace);  in mpihelp_mul_karatsuba_case()
356 		if (!ctx->tp || ctx->tp_size < vsize) {  in mpihelp_mul_karatsuba_case()
357 			if (ctx->tp)  in mpihelp_mul_karatsuba_case()
358 				mpi_free_limb_space(ctx->tp);  in mpihelp_mul_karatsuba_case()
359 			ctx->tp = mpi_alloc_limb_space(2 * vsize);  in mpihelp_mul_karatsuba_case()
360 			if (!ctx->tp) {  in mpihelp_mul_karatsuba_case()
361 				if (ctx->tspace)  in mpihelp_mul_karatsuba_case()
362 					mpi_free_limb_space(ctx->tspace);  in mpihelp_mul_karatsuba_case()
363 				ctx->tspace = NULL;  in mpihelp_mul_karatsuba_case()
366 			ctx->tp_size = vsize;  in mpihelp_mul_karatsuba_case()
370 			MPN_MUL_N_RECURSE(ctx->tp, up, vp, vsize, ctx->tspace);  in mpihelp_mul_karatsuba_case()
371 			cy = mpihelp_add_n(prodp, prodp, ctx->tp, vsize);  in mpihelp_mul_karatsuba_case()
372 			mpihelp_add_1(prodp + vsize, ctx->tp + vsize, vsize,  in mpihelp_mul_karatsuba_case()
383 			if (mpihelp_mul(ctx->tspace, vp, vsize, up, usize, &tmp)  in mpihelp_mul_karatsuba_case()
387 			if (!ctx->next) {  in mpihelp_mul_karatsuba_case()
388 				ctx->next = kzalloc(sizeof *ctx, GFP_KERNEL);  in mpihelp_mul_karatsuba_case()
389 				if (!ctx->next)  in mpihelp_mul_karatsuba_case()
392 			if (mpihelp_mul_karatsuba_case(ctx->tspace,  in mpihelp_mul_karatsuba_case()
395 						       ctx->next) < 0)  in mpihelp_mul_karatsuba_case()
399 		cy = mpihelp_add_n(prodp, prodp, ctx->tspace, vsize);  in mpihelp_mul_karatsuba_case()
400 		mpihelp_add_1(prodp + vsize, ctx->tspace + vsize, usize, cy);  in mpihelp_mul_karatsuba_case()
406 void mpihelp_release_karatsuba_ctx(struct karatsuba_ctx *ctx)  in mpihelp_release_karatsuba_ctx()  argument
410 	if (ctx->tp)  in mpihelp_release_karatsuba_ctx()
411 		mpi_free_limb_space(ctx->tp);  in mpihelp_release_karatsuba_ctx()
412 	if (ctx->tspace)  in mpihelp_release_karatsuba_ctx()
413 		mpi_free_limb_space(ctx->tspace);  in mpihelp_release_karatsuba_ctx()
414 	for (ctx = ctx->next; ctx; ctx = ctx2) {  in mpihelp_release_karatsuba_ctx()
415 		ctx2 = ctx->next;  in mpihelp_release_karatsuba_ctx()
416 		if (ctx->tp)  in mpihelp_release_karatsuba_ctx()
417 			mpi_free_limb_space(ctx->tp);  in mpihelp_release_karatsuba_ctx()
418 		if (ctx->tspace)  in mpihelp_release_karatsuba_ctx()
419 			mpi_free_limb_space(ctx->tspace);  in mpihelp_release_karatsuba_ctx()
420 		kfree(ctx);  in mpihelp_release_karatsuba_ctx()
445 	struct karatsuba_ctx ctx;  in mpihelp_mul()  local
491 	memset(&ctx, 0, sizeof ctx);  in mpihelp_mul()
492 	if (mpihelp_mul_karatsuba_case(prodp, up, usize, vp, vsize, &ctx) < 0)  in mpihelp_mul()
494 	mpihelp_release_karatsuba_ctx(&ctx);  in mpihelp_mul()