[REBASE,v5,09/17] pstore/ram: Use dynamic ramoops reserve resource

Commit Message

Mukesh Ojha Sept. 11, 2023, 10:53 a.m. UTC

As dynamic ramoops command line parsing is now added, so
lets add the support in ramoops driver to get the resource
structure and add it during platform device registration.

Signed-off-by: Mukesh Ojha <[e-mail]>
---
 fs/pstore/ram.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

Patch

diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index d36702c7ab3c..ab551caa1d2a 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -914,13 +914,17 @@  static void __init ramoops_register_dummy(void)
 
 	/*
 	 * Prepare a dummy platform data structure to carry the module
-	 * parameters. If mem_size isn't set, then there are no module
-	 * parameters, and we can skip this.
+	 * parameters. If mem_size isn't set, check for dynamic ramoops
+	 * size and extract the information if it is set.
 	 */
-	if (!mem_size)
+	if (!mem_size && !dyn_ramoops_res.end)
 		return;
 
 	pr_info("using module parameters\n");
+	if (dyn_ramoops_res.end) {
+		mem_size = resource_size(&dyn_ramoops_res);
+		mem_address = dyn_ramoops_res.start;
+	}
 
 	memset(&pdata, 0, sizeof(pdata));
 	pdata.mem_size = mem_size;