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crypto: lzo - drop obsolete 'comp' implementation

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The 'comp' API is obsolete and will be removed, so remove this comp
implementation.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel 2025-03-16 09:21:17 +08:00 committed by Herbert Xu
parent d32da55c5b
commit a3e43a25ba
1 changed files with 5 additions and 65 deletions
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70
crypto/lzo.c
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@ -3,13 +3,11 @@
* Cryptographic API.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/crypto.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <linux/lzo.h>
#include <crypto/internal/scompress.h>
#include <linux/init.h>
#include <linux/lzo.h>
#include <linux/module.h>
#include <linux/slab.h>
struct lzo_ctx {
void *lzo_comp_mem;
@ -26,29 +24,11 @@ static void *lzo_alloc_ctx(void)
return ctx;
}
static int lzo_init(struct crypto_tfm *tfm)
{
struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
ctx->lzo_comp_mem = lzo_alloc_ctx();
if (IS_ERR(ctx->lzo_comp_mem))
return -ENOMEM;
return 0;
}
static void lzo_free_ctx(void *ctx)
{
kvfree(ctx);
}
static void lzo_exit(struct crypto_tfm *tfm)
{
struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
lzo_free_ctx(ctx->lzo_comp_mem);
}
static int __lzo_compress(const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
@ -64,14 +44,6 @@ static int __lzo_compress(const u8 *src, unsigned int slen,
return 0;
}
static int lzo_compress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
struct lzo_ctx *ctx = crypto_tfm_ctx(tfm);
return __lzo_compress(src, slen, dst, dlen, ctx->lzo_comp_mem);
}
static int lzo_scompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
@ -94,12 +66,6 @@ static int __lzo_decompress(const u8 *src, unsigned int slen,
return 0;
}
static int lzo_decompress(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen)
{
return __lzo_decompress(src, slen, dst, dlen);
}
static int lzo_sdecompress(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx)
@ -107,19 +73,6 @@ static int lzo_sdecompress(struct crypto_scomp *tfm, const u8 *src,
return __lzo_decompress(src, slen, dst, dlen);
}
static struct crypto_alg alg = {
.cra_name = "lzo",
.cra_driver_name = "lzo-generic",
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
.cra_ctxsize = sizeof(struct lzo_ctx),
.cra_module = THIS_MODULE,
.cra_init = lzo_init,
.cra_exit = lzo_exit,
.cra_u = { .compress = {
.coa_compress = lzo_compress,
.coa_decompress = lzo_decompress } }
};
static struct scomp_alg scomp = {
.alloc_ctx = lzo_alloc_ctx,
.free_ctx = lzo_free_ctx,
@ -134,24 +87,11 @@ static struct scomp_alg scomp = {
static int __init lzo_mod_init(void)
{
int ret;
ret = crypto_register_alg(&alg);
if (ret)
return ret;
ret = crypto_register_scomp(&scomp);
if (ret) {
crypto_unregister_alg(&alg);
return ret;
}
return ret;
return crypto_register_scomp(&scomp);
}
static void __exit lzo_mod_fini(void)
{
crypto_unregister_alg(&alg);
crypto_unregister_scomp(&scomp);
}