[PATCH v5 23/25] s390/uv: Remove uv_get_secret_metadata function

Harald Freudenberger
2025-04-15T14:24:56Z

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.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Suggested-by: Steffen Eiden <seiden@linux.ibm.com>
---
arch/s390/include/asm/uv.h | 2 --
arch/s390/kernel/uv.c | 30 ------------------------------
2 files changed, 32 deletions(-)

diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
index 7f53fe755f3f..b008402ec9aa 100644
--- 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 faac43359e23..4ab0b6b4866e 100644
--- 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.
--
2.43.0