[PATCH v5 09/17] pstore/ram: Use dynamic ramoops reserve resource
From: Mukesh Ojha <hidden>
Date: 2023-09-09 20:20:14
Also in:
linux-arm-kernel, linux-arm-msm, linux-gpio, linux-hardening, linux-mediatek, linux-remoteproc, linux-samsung-soc, lkml
Subsystem:
filesystems (vfs and infrastructure), pstore filesystem, the rest · Maintainers:
Alexander Viro, Christian Brauner, Kees Cook, Linus Torvalds
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 <redacted> --- fs/pstore/ram.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 2f625e1fa8d8..e73fbbc1b5b5 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c@@ -913,13 +913,17 @@ 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;
--
2.7.4