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authorArd Biesheuvel <ardb@kernel.org>2022-06-22 09:31:31 +0200
committerArd Biesheuvel <ardb@kernel.org>2022-06-24 20:40:04 +0200
commit8ca869b24538a7b5501af368e87e4a59b0c04117 (patch)
tree4ba6d8dfa417849391aaba1681294029c35aa9f0 /include/linux/pstore.h
parentf662092b2e0c4a43d09e5b1f67ca969ea47a93d3 (diff)
pstore: Add priv field to pstore_record for backend specific use
The EFI pstore backend will need to store per-record variable name data when we switch away from the efivars layer. Add a priv field to struct pstore_record, and document it as holding a backend specific pointer that is assumed to be a kmalloc()d buffer, and will be kfree()d when the entire record is freed. Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'include/linux/pstore.h')
-rw-r--r--include/linux/pstore.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index e97a8188f0fd..638507a3c8ff 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -57,6 +57,9 @@ struct pstore_info;
* @size: size of @buf
* @ecc_notice_size:
* ECC information for @buf
+ * @priv: pointer for backend specific use, will be
+ * kfree()d by the pstore core if non-NULL
+ * when the record is freed.
*
* Valid for PSTORE_TYPE_DMESG @type:
*
@@ -74,6 +77,7 @@ struct pstore_record {
char *buf;
ssize_t size;
ssize_t ecc_notice_size;
+ void *priv;
int count;
enum kmsg_dump_reason reason;