diff options
Diffstat (limited to 'drivers/crypto/nx/nx-842.c')
| -rw-r--r-- | drivers/crypto/nx/nx-842.c | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/drivers/crypto/nx/nx-842.c b/drivers/crypto/nx/nx-842.c index 2ab90ec10e61..b950fcce8a9b 100644 --- a/drivers/crypto/nx/nx-842.c +++ b/drivers/crypto/nx/nx-842.c @@ -101,9 +101,13 @@ static int update_param(struct nx842_crypto_param *p, return 0; } -int nx842_crypto_init(struct crypto_tfm *tfm, struct nx842_driver *driver) +void *nx842_crypto_alloc_ctx(struct nx842_driver *driver) { - struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm); + struct nx842_crypto_ctx *ctx; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return ERR_PTR(-ENOMEM); spin_lock_init(&ctx->lock); ctx->driver = driver; @@ -114,22 +118,23 @@ int nx842_crypto_init(struct crypto_tfm *tfm, struct nx842_driver *driver) kfree(ctx->wmem); free_page((unsigned long)ctx->sbounce); free_page((unsigned long)ctx->dbounce); - return -ENOMEM; + kfree(ctx); + return ERR_PTR(-ENOMEM); } - return 0; + return ctx; } -EXPORT_SYMBOL_GPL(nx842_crypto_init); +EXPORT_SYMBOL_GPL(nx842_crypto_alloc_ctx); -void nx842_crypto_exit(struct crypto_tfm *tfm) +void nx842_crypto_free_ctx(void *p) { - struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm); + struct nx842_crypto_ctx *ctx = p; kfree(ctx->wmem); free_page((unsigned long)ctx->sbounce); free_page((unsigned long)ctx->dbounce); } -EXPORT_SYMBOL_GPL(nx842_crypto_exit); +EXPORT_SYMBOL_GPL(nx842_crypto_free_ctx); static void check_constraints(struct nx842_constraints *c) { @@ -246,12 +251,14 @@ nospc: return update_param(p, slen, dskip + dlen); } -int nx842_crypto_compress(struct crypto_tfm *tfm, +int nx842_crypto_compress(struct crypto_scomp *tfm, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen) + u8 *dst, unsigned int *dlen, void *pctx) { - struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm); - struct nx842_crypto_header *hdr = &ctx->header; + struct nx842_crypto_ctx *ctx = pctx; + struct nx842_crypto_header *hdr = + container_of(&ctx->header, + struct nx842_crypto_header, hdr); struct nx842_crypto_param p; struct nx842_constraints c = *ctx->driver->constraints; unsigned int groups, hdrsize, h; @@ -429,11 +436,11 @@ usesw: return update_param(p, slen + padding, dlen); } -int nx842_crypto_decompress(struct crypto_tfm *tfm, +int nx842_crypto_decompress(struct crypto_scomp *tfm, const u8 *src, unsigned int slen, - u8 *dst, unsigned int *dlen) + u8 *dst, unsigned int *dlen, void *pctx) { - struct nx842_crypto_ctx *ctx = crypto_tfm_ctx(tfm); + struct nx842_crypto_ctx *ctx = pctx; struct nx842_crypto_header *hdr; struct nx842_crypto_param p; struct nx842_constraints c = *ctx->driver->constraints; @@ -490,7 +497,7 @@ int nx842_crypto_decompress(struct crypto_tfm *tfm, } memcpy(&ctx->header, src, hdr_len); - hdr = &ctx->header; + hdr = container_of(&ctx->header, struct nx842_crypto_header, hdr); for (n = 0; n < hdr->groups; n++) { /* ignore applies to last group */ |