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crypto: 842 - 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The 'comp' API is obsolete and will be removed, so remove this comp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 09:21:06 +08:00 committed by Herbert Xu
parent 980b5705f4
commit 2d985ff007
1 changed files with 2 additions and 64 deletions
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66
crypto/842.c
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@ -18,11 +18,10 @@
* drivers/crypto/nx/nx-842-crypto.c * drivers/crypto/nx/nx-842-crypto.c
*/ */
#include <crypto/internal/scompress.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/crypto.h>
#include <linux/sw842.h> #include <linux/sw842.h>
#include <crypto/internal/scompress.h>
struct crypto842_ctx { struct crypto842_ctx {
void *wmem; /* working memory for compress */ void *wmem; /* working memory for compress */
@ -39,38 +38,11 @@ static void *crypto842_alloc_ctx(void)
return ctx; return ctx;
} }
static int crypto842_init(struct crypto_tfm *tfm)
{
struct crypto842_ctx *ctx = crypto_tfm_ctx(tfm);
ctx->wmem = crypto842_alloc_ctx();
if (IS_ERR(ctx->wmem))
return -ENOMEM;
return 0;
}
static void crypto842_free_ctx(void *ctx) static void crypto842_free_ctx(void *ctx)
{ {
kfree(ctx); kfree(ctx);
} }
static void crypto842_exit(struct crypto_tfm *tfm)
{
struct crypto842_ctx *ctx = crypto_tfm_ctx(tfm);
crypto842_free_ctx(ctx->wmem);
}
static int crypto842_compress(struct crypto_tfm *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen)
{
struct crypto842_ctx *ctx = crypto_tfm_ctx(tfm);
return sw842_compress(src, slen, dst, dlen, ctx->wmem);
}
static int crypto842_scompress(struct crypto_scomp *tfm, static int crypto842_scompress(struct crypto_scomp *tfm,
const u8 *src, unsigned int slen, const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx) u8 *dst, unsigned int *dlen, void *ctx)
@ -78,13 +50,6 @@ static int crypto842_scompress(struct crypto_scomp *tfm,
return sw842_compress(src, slen, dst, dlen, ctx); return sw842_compress(src, slen, dst, dlen, ctx);
} }
static int crypto842_decompress(struct crypto_tfm *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen)
{
return sw842_decompress(src, slen, dst, dlen);
}
static int crypto842_sdecompress(struct crypto_scomp *tfm, static int crypto842_sdecompress(struct crypto_scomp *tfm,
const u8 *src, unsigned int slen, const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx) u8 *dst, unsigned int *dlen, void *ctx)
@ -92,20 +57,6 @@ static int crypto842_sdecompress(struct crypto_scomp *tfm,
return sw842_decompress(src, slen, dst, dlen); return sw842_decompress(src, slen, dst, dlen);
} }
static struct crypto_alg alg = {
.cra_name = "842",
.cra_driver_name = "842-generic",
.cra_priority = 100,
.cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
.cra_ctxsize = sizeof(struct crypto842_ctx),
.cra_module = THIS_MODULE,
.cra_init = crypto842_init,
.cra_exit = crypto842_exit,
.cra_u = { .compress = {
.coa_compress = crypto842_compress,
.coa_decompress = crypto842_decompress } }
};
static struct scomp_alg scomp = { static struct scomp_alg scomp = {
.alloc_ctx = crypto842_alloc_ctx, .alloc_ctx = crypto842_alloc_ctx,
.free_ctx = crypto842_free_ctx, .free_ctx = crypto842_free_ctx,
@ -121,25 +72,12 @@ static struct scomp_alg scomp = {
static int __init crypto842_mod_init(void) static int __init crypto842_mod_init(void)
{ {
int ret; return crypto_register_scomp(&scomp);
ret = crypto_register_alg(&alg);
if (ret)
return ret;
ret = crypto_register_scomp(&scomp);
if (ret) {
crypto_unregister_alg(&alg);
return ret;
}
return ret;
} }
subsys_initcall(crypto842_mod_init); subsys_initcall(crypto842_mod_init);
static void __exit crypto842_mod_exit(void) static void __exit crypto842_mod_exit(void)
{ {
crypto_unregister_alg(&alg);
crypto_unregister_scomp(&scomp); crypto_unregister_scomp(&scomp);
} }
module_exit(crypto842_mod_exit); module_exit(crypto842_mod_exit);