Commit a42831f0 authored by Harald Freudenberger's avatar Harald Freudenberger Committed by Heiko Carstens
Browse files

s390/uv: Remove uv_get_secret_metadata function 



The uv_get_secret_metadata() in-kernel function was only
offered and used by the pkey uv handler. Remove it as there
is no customer any more.

Suggested-by: default avatarSteffen Eiden <seiden@linux.ibm.com>
Signed-off-by: default avatarHarald Freudenberger <freude@linux.ibm.com>
Reviewed-by: default avatarSteffen Eiden <seiden@linux.ibm.com>
Acked-by: default avatarHolger Dengler <dengler@linux.ibm.com>
Link: https://lore.kernel.org/r/20250424133619.16495-24-freude@linux.ibm.com


Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 1bd47937

arch/s390/include/asm/uv.h

+0 −2
Original line number Diff line number Diff line
@@ -619,8 +619,6 @@ static inline int uv_remove_shared(unsigned long addr) 
int uv_find_secret(const u8 secret_id[UV_SECRET_ID_LEN],

		   struct uv_secret_list *list,

		   struct uv_secret_list_item_hdr *secret);

int uv_get_secret_metadata(const u8 secret_id[UV_SECRET_ID_LEN],

			   struct uv_secret_list_item_hdr *secret);

int uv_retrieve_secret(u16 secret_idx, u8 *buf, size_t buf_size);



extern int prot_virt_host;

arch/s390/kernel/uv.c

+0 −30
Original line number Diff line number Diff line
@@ -840,36 +840,6 @@ int uv_find_secret(const u8 secret_id[UV_SECRET_ID_LEN], 
}

EXPORT_SYMBOL_GPL(uv_find_secret);



/**

 * uv_get_secret_metadata() - get secret metadata for a given secret id.

 * @secret_id: search pattern.

 * @secret: output data, containing the secret's metadata.

 *

 * Search for a secret with the given secret_id in the Ultravisor secret store.

 *

 * Context: might sleep.

 *

 * Return:

 * * %0:	- Found entry; secret->idx and secret->type are valid.

 * * %ENOENT	- No entry found.

 * * %ENODEV:	- Not supported: UV not available or command not available.

 * * %EIO:	- Other unexpected UV error.

 */

int uv_get_secret_metadata(const u8 secret_id[UV_SECRET_ID_LEN],

			   struct uv_secret_list_item_hdr *secret)

{

	struct uv_secret_list *buf;

	int rc;



	buf = kzalloc(sizeof(*buf), GFP_KERNEL);

	if (!buf)

		return -ENOMEM;

	rc = uv_find_secret(secret_id, buf, secret);

	kfree(buf);

	return rc;

}

EXPORT_SYMBOL_GPL(uv_get_secret_metadata);



/**

 * uv_retrieve_secret() - get the secret value for the secret index.

 * @secret_idx: Secret index for which the secret should be retrieved.