Merge branch 'for-6.19/nintendo' into for-linus

- switch to WQ_PERCPU workaueues (Marco Crivellari)
- reduce potential initialization blocking time of hid-nintendo (Willy Huang)

3 files changed, 36 insertions, 54 deletions

diff --git a/lib/Kconfig b/lib/Kconfig
index c483951b624f..e629449dd2a3 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -477,8 +477,7 @@ config MPILIB
 config SIGNATURE
 	tristate
 	depends on KEYS
-	select CRYPTO
-	select CRYPTO_SHA1
+	select CRYPTO_LIB_SHA1
 	select MPILIB
 	help
 	  Digital signature verification. Currently only RSA is supported.
diff --git a/lib/digsig.c b/lib/digsig.c
index 2b36f9cc91e9..9dd319c12c7d 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -18,15 +18,11 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/key.h>
-#include <linux/crypto.h>
-#include <crypto/hash.h>
 #include <crypto/sha1.h>
 #include <keys/user-type.h>
 #include <linux/mpi.h>
 #include <linux/digsig.h>
 
-static struct crypto_shash *shash;
-
 static const char *pkcs_1_v1_5_decode_emsa(const unsigned char *msg,
 						unsigned long  msglen,
 						unsigned long  modulus_bitlen,
@@ -198,12 +194,12 @@ err1:
 int digsig_verify(struct key *keyring, const char *sig, int siglen,
 						const char *data, int datalen)
 {
-	int err = -ENOMEM;
 	struct signature_hdr *sh = (struct signature_hdr *)sig;
-	struct shash_desc *desc = NULL;
+	struct sha1_ctx ctx;
 	unsigned char hash[SHA1_DIGEST_SIZE];
 	struct key *key;
 	char name[20];
+	int err;
 
 	if (siglen < sizeof(*sh) + 2)
 		return -EINVAL;
@@ -230,49 +226,19 @@ int digsig_verify(struct key *keyring, const char *sig, int siglen,
 		return PTR_ERR(key);
 	}
 
-	desc = kzalloc(sizeof(*desc) + crypto_shash_descsize(shash),
-		       GFP_KERNEL);
-	if (!desc)
-		goto err;
-
-	desc->tfm = shash;
-
-	crypto_shash_init(desc);
-	crypto_shash_update(desc, data, datalen);
-	crypto_shash_update(desc, sig, sizeof(*sh));
-	crypto_shash_final(desc, hash);
-
-	kfree(desc);
+	sha1_init(&ctx);
+	sha1_update(&ctx, data, datalen);
+	sha1_update(&ctx, sig, sizeof(*sh));
+	sha1_final(&ctx, hash);
 
 	/* pass signature mpis address */
 	err = digsig_verify_rsa(key, sig + sizeof(*sh), siglen - sizeof(*sh),
 			     hash, sizeof(hash));
 
-err:
 	key_put(key);
 
 	return err ? -EINVAL : 0;
 }
 EXPORT_SYMBOL_GPL(digsig_verify);
 
-static int __init digsig_init(void)
-{
-	shash = crypto_alloc_shash("sha1", 0, 0);
-	if (IS_ERR(shash)) {
-		pr_err("shash allocation failed\n");
-		return  PTR_ERR(shash);
-	}
-
-	return 0;
-
-}
-
-static void __exit digsig_cleanup(void)
-{
-	crypto_free_shash(shash);
-}
-
-module_init(digsig_init);
-module_exit(digsig_cleanup);
-
 MODULE_LICENSE("GPL");
diff --git a/lib/test_kho.c b/lib/test_kho.c
index fe8504e3407b..60cd899ea745 100644
--- a/lib/test_kho.c
+++ b/lib/test_kho.c
@@ -32,6 +32,7 @@ module_param(max_mem, long, 0644);
 struct kho_test_state {
 	unsigned int nr_folios;
 	struct folio **folios;
+	phys_addr_t *folios_info;
 	struct folio *fdt;
 	__wsum csum;
 };
@@ -67,18 +68,15 @@ static struct notifier_block kho_test_nb = {
 
 static int kho_test_save_data(struct kho_test_state *state, void *fdt)
 {
-	phys_addr_t *folios_info;
+	phys_addr_t *folios_info __free(kvfree) = NULL;
+	struct kho_vmalloc folios_info_phys;
 	int err = 0;
 
-	err |= fdt_begin_node(fdt, "data");
-	err |= fdt_property(fdt, "nr_folios", &state->nr_folios,
-			    sizeof(state->nr_folios));
-	err |= fdt_property_placeholder(fdt, "folios_info",
-					state->nr_folios * sizeof(*folios_info),
-					(void **)&folios_info);
-	err |= fdt_property(fdt, "csum", &state->csum, sizeof(state->csum));
-	err |= fdt_end_node(fdt);
+	folios_info = vmalloc_array(state->nr_folios, sizeof(*folios_info));
+	if (!folios_info)
+		return -ENOMEM;
 
+	err = kho_preserve_vmalloc(folios_info, &folios_info_phys);
 	if (err)
 		return err;
 
@@ -93,6 +91,17 @@ static int kho_test_save_data(struct kho_test_state *state, void *fdt)
 			break;
 	}
 
+	err |= fdt_begin_node(fdt, "data");
+	err |= fdt_property(fdt, "nr_folios", &state->nr_folios,
+			    sizeof(state->nr_folios));
+	err |= fdt_property(fdt, "folios_info", &folios_info_phys,
+			    sizeof(folios_info_phys));
+	err |= fdt_property(fdt, "csum", &state->csum, sizeof(state->csum));
+	err |= fdt_end_node(fdt);
+
+	if (!err)
+		state->folios_info = no_free_ptr(folios_info);
+
 	return err;
 }
 
@@ -209,8 +218,9 @@ err_free_folios:
 
 static int kho_test_restore_data(const void *fdt, int node)
 {
+	const struct kho_vmalloc *folios_info_phys;
 	const unsigned int *nr_folios;
-	const phys_addr_t *folios_info;
+	phys_addr_t *folios_info;
 	const __wsum *old_csum;
 	__wsum csum = 0;
 	int len;
@@ -225,8 +235,12 @@ static int kho_test_restore_data(const void *fdt, int node)
 	if (!old_csum || len != sizeof(*old_csum))
 		return -EINVAL;
 
-	folios_info = fdt_getprop(fdt, node, "folios_info", &len);
-	if (!folios_info || len != sizeof(*folios_info) * *nr_folios)
+	folios_info_phys = fdt_getprop(fdt, node, "folios_info", &len);
+	if (!folios_info_phys || len != sizeof(*folios_info_phys))
+		return -EINVAL;
+
+	folios_info = kho_restore_vmalloc(folios_info_phys);
+	if (!folios_info)
 		return -EINVAL;
 
 	for (int i = 0; i < *nr_folios; i++) {
@@ -246,6 +260,8 @@ static int kho_test_restore_data(const void *fdt, int node)
 		folio_put(folio);
 	}
 
+	vfree(folios_info);
+
 	if (csum != *old_csum)
 		return -EINVAL;
 
@@ -304,6 +320,7 @@ static void kho_test_cleanup(void)
 		folio_put(kho_test_state.folios[i]);
 
 	kvfree(kho_test_state.folios);
+	vfree(kho_test_state.folios_info);
 	folio_put(kho_test_state.fdt);
 }