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crypto: iaa - Use acomp stack fallback

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Use ACOMP_REQUEST_ON_STACK instead of allocating legacy fallback
compression transform.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2025-03-15 18:30:36 +08:00
parent 5416b8a741
commit dfd28c89fa
1 changed files with 6 additions and 22 deletions
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28
drivers/crypto/intel/iaa/iaa_crypto_main.c
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@@ -33,8 +33,6 @@ static unsigned int nr_cpus_per_node;
/* Number of physical cpus sharing each iaa instance */
static unsigned int cpus_per_iaa;
static struct crypto_comp *deflate_generic_tfm;
/* Per-cpu lookup table for balanced wqs */
static struct wq_table_entry __percpu *wq_table;
@@ -1001,17 +999,14 @@ out:
static int deflate_generic_decompress(struct acomp_req *req)
{
void *src, *dst;
ACOMP_REQUEST_ON_STACK(fbreq, crypto_acomp_reqtfm(req));
int ret;
src = kmap_local_page(sg_page(req->src)) + req->src->offset;
dst = kmap_local_page(sg_page(req->dst)) + req->dst->offset;
ret = crypto_comp_decompress(deflate_generic_tfm,
src, req->slen, dst, &req->dlen);
kunmap_local(src);
kunmap_local(dst);
acomp_request_set_callback(fbreq, 0, NULL, NULL);
acomp_request_set_params(fbreq, req->src, req->dst, req->slen,
req->dlen);
ret = crypto_acomp_decompress(fbreq);
req->dlen = fbreq->dlen;
update_total_sw_decomp_calls();
@@ -1898,15 +1893,6 @@ static int __init iaa_crypto_init_module(void)
}
nr_cpus_per_node = nr_cpus / nr_nodes;
if (crypto_has_comp("deflate-generic", 0, 0))
deflate_generic_tfm = crypto_alloc_comp("deflate-generic", 0, 0);
if (IS_ERR_OR_NULL(deflate_generic_tfm)) {
pr_err("IAA could not alloc %s tfm: errcode = %ld\n",
"deflate-generic", PTR_ERR(deflate_generic_tfm));
return -ENOMEM;
}
ret = iaa_aecs_init_fixed();
if (ret < 0) {
pr_debug("IAA fixed compression mode init failed\n");
@@ -1948,7 +1934,6 @@ err_verify_attr_create:
err_driver_reg:
iaa_aecs_cleanup_fixed();
err_aecs_init:
crypto_free_comp(deflate_generic_tfm);
goto out;
}
@@ -1965,7 +1950,6 @@ static void __exit iaa_crypto_cleanup_module(void)
&driver_attr_verify_compress);
idxd_driver_unregister(&iaa_crypto_driver);
iaa_aecs_cleanup_fixed();
crypto_free_comp(deflate_generic_tfm);
pr_debug("cleaned up\n");
}