On 7/7/22 10:47, Jonathan McDowell wrote:
On Wed, Jul 06, 2022 at 11:23:28AM -0400, Stefan Berger wrote:
Refactor IMA buffer related functions to make them reusable for carrying
TPM logs across kexec.
Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Frank Rowand <frowand.list@xxxxxxxxx>
Cc: Mimi Zohar <zohar@xxxxxxxxxxxxx>
---
v5:
- Rebased on Jonathan McDowell's commit "b69a2afd5afc x86/kexec: Carry
forward IMA measurement log on kexec"
v4:
- Move debug output into setup_buffer()
---
drivers/of/kexec.c | 125 ++++++++++++++++++++++++++-------------------
1 file changed, 73 insertions(+), 52 deletions(-)
diff --git a/drivers/of/kexec.c b/drivers/of/kexec.c
index 548dd5b1b5c1..404a86bb3978 100644
--- a/drivers/of/kexec.c
+++ b/drivers/of/kexec.c
@@ -117,45 +117,56 @@ static int do_get_kexec_buffer(const void *prop, int len, unsigned long *addr,
}
#ifdef CONFIG_HAVE_IMA_KEXEC
-/**
- * ima_get_kexec_buffer - get IMA buffer from the previous kernel
- * @addr: On successful return, set to point to the buffer contents.
- * @size: On successful return, set to the buffer size.
- *
- * Return: 0 on success, negative errno on error.
- */
-int __init ima_get_kexec_buffer(void **addr, size_t *size)
+static int get_kexec_buffer(const char *name, unsigned long *addr, size_t *size)
I think this new function can + should be marked __init as well; it's
only called from the existing IMA functions and your new
tpm_get_kexec_buffer which is already __init.
Yes, right. Thanks.
Stefan
