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: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Acked-by: Holger Dengler <dengler@linux.ibm.com>
Link: https://lore.kernel.org/r/20250424133619.16495-24-freude@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
index 7f53fe755f3fc76d220e628e2d97d1b56d3dd10c..b008402ec9aa77a611ca52138b2dc9813b83a168 100644 (file)
--- a/arch/s390/include/asm/uv.h
+++ b/arch/s390/include/asm/uv.h
@@ -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;

diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index faac43359e233b8fb62091a14aed46684058c5e3..4ab0b6b4866e20aa6f5a2e44f19f00030adf6785 100644 (file)
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -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.