324 			   struct karatsuba_ctx *ctx)  in mpihelp_mul_karatsuba_case()  argument
328 	if (!ctx->tspace || ctx->tspace_size < vsize) {  in mpihelp_mul_karatsuba_case()
329 		if (ctx->tspace)  in mpihelp_mul_karatsuba_case()
330 			mpi_free_limb_space(ctx->tspace);  in mpihelp_mul_karatsuba_case()
331 		ctx->tspace = mpi_alloc_limb_space(2 * vsize);  in mpihelp_mul_karatsuba_case()
332 		if (!ctx->tspace)  in mpihelp_mul_karatsuba_case()
334 		ctx->tspace_size = vsize;  in mpihelp_mul_karatsuba_case()
337 	MPN_MUL_N_RECURSE(prodp, up, vp, vsize, ctx->tspace);  in mpihelp_mul_karatsuba_case()
343 		if (!ctx->tp || ctx->tp_size < vsize) {  in mpihelp_mul_karatsuba_case()
344 			if (ctx->tp)  in mpihelp_mul_karatsuba_case()
345 				mpi_free_limb_space(ctx->tp);  in mpihelp_mul_karatsuba_case()
346 			ctx->tp = mpi_alloc_limb_space(2 * vsize);  in mpihelp_mul_karatsuba_case()
347 			if (!ctx->tp) {  in mpihelp_mul_karatsuba_case()
348 				if (ctx->tspace)  in mpihelp_mul_karatsuba_case()
349 					mpi_free_limb_space(ctx->tspace);  in mpihelp_mul_karatsuba_case()
350 				ctx->tspace = NULL;  in mpihelp_mul_karatsuba_case()
353 			ctx->tp_size = vsize;  in mpihelp_mul_karatsuba_case()
357 			MPN_MUL_N_RECURSE(ctx->tp, up, vp, vsize, ctx->tspace);  in mpihelp_mul_karatsuba_case()
358 			cy = mpihelp_add_n(prodp, prodp, ctx->tp, vsize);  in mpihelp_mul_karatsuba_case()
359 			mpihelp_add_1(prodp + vsize, ctx->tp + vsize, vsize,  in mpihelp_mul_karatsuba_case()
370 			if (mpihelp_mul(ctx->tspace, vp, vsize, up, usize, &tmp)  in mpihelp_mul_karatsuba_case()
374 			if (!ctx->next) {  in mpihelp_mul_karatsuba_case()
375 				ctx->next = kzalloc(sizeof *ctx, GFP_KERNEL);  in mpihelp_mul_karatsuba_case()
376 				if (!ctx->next)  in mpihelp_mul_karatsuba_case()
379 			if (mpihelp_mul_karatsuba_case(ctx->tspace,  in mpihelp_mul_karatsuba_case()
382 						       ctx->next) < 0)  in mpihelp_mul_karatsuba_case()
386 		cy = mpihelp_add_n(prodp, prodp, ctx->tspace, vsize);  in mpihelp_mul_karatsuba_case()
387 		mpihelp_add_1(prodp + vsize, ctx->tspace + vsize, usize, cy);  in mpihelp_mul_karatsuba_case()
393 void mpihelp_release_karatsuba_ctx(struct karatsuba_ctx *ctx)  in mpihelp_release_karatsuba_ctx()  argument
397 	if (ctx->tp)  in mpihelp_release_karatsuba_ctx()
398 		mpi_free_limb_space(ctx->tp);  in mpihelp_release_karatsuba_ctx()
399 	if (ctx->tspace)  in mpihelp_release_karatsuba_ctx()
400 		mpi_free_limb_space(ctx->tspace);  in mpihelp_release_karatsuba_ctx()
401 	for (ctx = ctx->next; ctx; ctx = ctx2) {  in mpihelp_release_karatsuba_ctx()
402 		ctx2 = ctx->next;  in mpihelp_release_karatsuba_ctx()
403 		if (ctx->tp)  in mpihelp_release_karatsuba_ctx()
404 			mpi_free_limb_space(ctx->tp);  in mpihelp_release_karatsuba_ctx()
405 		if (ctx->tspace)  in mpihelp_release_karatsuba_ctx()
406 			mpi_free_limb_space(ctx->tspace);  in mpihelp_release_karatsuba_ctx()
407 		kfree(ctx);  in mpihelp_release_karatsuba_ctx()
432 	struct karatsuba_ctx ctx;  in mpihelp_mul()  local
478 	memset(&ctx, 0, sizeof ctx);  in mpihelp_mul()
479 	if (mpihelp_mul_karatsuba_case(prodp, up, usize, vp, vsize, &ctx) < 0)  in mpihelp_mul()
481 	mpihelp_release_karatsuba_ctx(&ctx);  in mpihelp_mul()