115 	struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm);  in nx842_crypto_init()  local
117 	spin_lock_init(&ctx->lock);  in nx842_crypto_init()
118 	ctx->driver = driver;  in nx842_crypto_init()
119 	ctx->wmem = kmalloc(driver->workmem_size, GFP_KERNEL);  in nx842_crypto_init()
120 	ctx->sbounce = (u8 *)__get_free_pages(GFP_KERNEL, BOUNCE_BUFFER_ORDER);  in nx842_crypto_init()
121 	ctx->dbounce = (u8 *)__get_free_pages(GFP_KERNEL, BOUNCE_BUFFER_ORDER);  in nx842_crypto_init()
122 	if (!ctx->wmem || !ctx->sbounce || !ctx->dbounce) {  in nx842_crypto_init()
123 		kfree(ctx->wmem);  in nx842_crypto_init()
124 		free_page((unsigned long)ctx->sbounce);  in nx842_crypto_init()
125 		free_page((unsigned long)ctx->dbounce);  in nx842_crypto_init()
135 	struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm);  in nx842_crypto_exit()  local
137 	kfree(ctx->wmem);  in nx842_crypto_exit()
138 	free_page((unsigned long)ctx->sbounce);  in nx842_crypto_exit()
139 	free_page((unsigned long)ctx->dbounce);  in nx842_crypto_exit()
167 static int compress(struct nx842_crypto_ctx *ctx,  in compress()  argument
196 			memset(ctx->sbounce + slen, 0, adj_slen - slen);  in compress()
197 		memcpy(ctx->sbounce, src, slen);  in compress()
198 		src = ctx->sbounce;  in compress()
215 		dst = ctx->dbounce;  in compress()
228 		ret = ctx->driver->compress(src, slen, dst, &dlen, ctx->wmem);  in compress()
232 		if (ret == -ENOSPC && dst != ctx->dbounce)  in compress()
240 	if (dst == ctx->dbounce)  in compress()
262 	struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm);  in nx842_crypto_compress()  local
263 	struct nx842_crypto_header *hdr = &ctx->header;  in nx842_crypto_compress()
265 	struct nx842_constraints c = *ctx->driver->constraints;  in nx842_crypto_compress()
285 	spin_lock_bh(&ctx->lock);  in nx842_crypto_compress()
313 		ret = compress(ctx, &p, &hdr->group[n], &c, &ignore, h);  in nx842_crypto_compress()
339 	spin_unlock_bh(&ctx->lock);  in nx842_crypto_compress()
344 static int decompress(struct nx842_crypto_ctx *ctx,  in decompress()  argument
382 			memset(ctx->sbounce + slen, 0, adj_slen - slen);  in decompress()
383 		memcpy(ctx->sbounce, src, slen);  in decompress()
384 		src = ctx->sbounce;  in decompress()
393 		dst = ctx->dbounce;  in decompress()
406 		ret = ctx->driver->decompress(src, slen, dst, &dlen, ctx->wmem);  in decompress()
418 			dst = ctx->dbounce;  in decompress()
433 	if (dst == ctx->dbounce)  in decompress()
446 	struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm);  in nx842_crypto_decompress()  local
449 	struct nx842_constraints c = *ctx->driver->constraints;  in nx842_crypto_decompress()
465 	spin_lock_bh(&ctx->lock);  in nx842_crypto_decompress()
477 		ret = decompress(ctx, &p, &g, &c, 0);  in nx842_crypto_decompress()
502 	memcpy(&ctx->header, src, hdr_len);  in nx842_crypto_decompress()
503 	hdr = &ctx->header;  in nx842_crypto_decompress()
510 		ret = decompress(ctx, &p, &hdr->group[n], &c, ignore);  in nx842_crypto_decompress()
523 	spin_unlock_bh(&ctx->lock);  in nx842_crypto_decompress()