32 static int zstd_comp_init(struct zstd_ctx *ctx)  in zstd_comp_init()  argument
38 	ctx->cwksp = vzalloc(wksp_size);  in zstd_comp_init()
39 	if (!ctx->cwksp) {  in zstd_comp_init()
44 	ctx->cctx = ZSTD_initCCtx(ctx->cwksp, wksp_size);  in zstd_comp_init()
45 	if (!ctx->cctx) {  in zstd_comp_init()
52 	vfree(ctx->cwksp);  in zstd_comp_init()
56 static int zstd_decomp_init(struct zstd_ctx *ctx)  in zstd_decomp_init()  argument
61 	ctx->dwksp = vzalloc(wksp_size);  in zstd_decomp_init()
62 	if (!ctx->dwksp) {  in zstd_decomp_init()
67 	ctx->dctx = ZSTD_initDCtx(ctx->dwksp, wksp_size);  in zstd_decomp_init()
68 	if (!ctx->dctx) {  in zstd_decomp_init()
75 	vfree(ctx->dwksp);  in zstd_decomp_init()
79 static void zstd_comp_exit(struct zstd_ctx *ctx)  in zstd_comp_exit()  argument
81 	vfree(ctx->cwksp);  in zstd_comp_exit()
82 	ctx->cwksp = NULL;  in zstd_comp_exit()
83 	ctx->cctx = NULL;  in zstd_comp_exit()
86 static void zstd_decomp_exit(struct zstd_ctx *ctx)  in zstd_decomp_exit()  argument
88 	vfree(ctx->dwksp);  in zstd_decomp_exit()
89 	ctx->dwksp = NULL;  in zstd_decomp_exit()
90 	ctx->dctx = NULL;  in zstd_decomp_exit()
93 static int __zstd_init(void *ctx)  in __zstd_init()  argument
97 	ret = zstd_comp_init(ctx);  in __zstd_init()
100 	ret = zstd_decomp_init(ctx);  in __zstd_init()
102 		zstd_comp_exit(ctx);  in __zstd_init()
109 	struct zstd_ctx *ctx;  in zstd_alloc_ctx()  local
111 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);  in zstd_alloc_ctx()
112 	if (!ctx)  in zstd_alloc_ctx()
115 	ret = __zstd_init(ctx);  in zstd_alloc_ctx()
117 		kfree(ctx);  in zstd_alloc_ctx()
121 	return ctx;  in zstd_alloc_ctx()
126 	struct zstd_ctx *ctx = crypto_tfm_ctx(tfm);  in zstd_init()  local
128 	return __zstd_init(ctx);  in zstd_init()
131 static void __zstd_exit(void *ctx)  in __zstd_exit()  argument
133 	zstd_comp_exit(ctx);  in __zstd_exit()
134 	zstd_decomp_exit(ctx);  in __zstd_exit()
137 static void zstd_free_ctx(struct crypto_scomp *tfm, void *ctx)  in zstd_free_ctx()  argument
139 	__zstd_exit(ctx);  in zstd_free_ctx()
140 	kzfree(ctx);  in zstd_free_ctx()
145 	struct zstd_ctx *ctx = crypto_tfm_ctx(tfm);  in zstd_exit()  local
147 	__zstd_exit(ctx);  in zstd_exit()
151 			   u8 *dst, unsigned int *dlen, void *ctx)  in __zstd_compress()  argument
154 	struct zstd_ctx *zctx = ctx;  in __zstd_compress()
167 	struct zstd_ctx *ctx = crypto_tfm_ctx(tfm);  in zstd_compress()  local
169 	return __zstd_compress(src, slen, dst, dlen, ctx);  in zstd_compress()
174 			  void *ctx)  in zstd_scompress()  argument
176 	return __zstd_compress(src, slen, dst, dlen, ctx);  in zstd_scompress()
180 			     u8 *dst, unsigned int *dlen, void *ctx)  in __zstd_decompress()  argument
183 	struct zstd_ctx *zctx = ctx;  in __zstd_decompress()
195 	struct zstd_ctx *ctx = crypto_tfm_ctx(tfm);  in zstd_decompress()  local
197 	return __zstd_decompress(src, slen, dst, dlen, ctx);  in zstd_decompress()
202 			    void *ctx)  in zstd_sdecompress()  argument
204 	return __zstd_decompress(src, slen, dst, dlen, ctx);  in zstd_sdecompress()