mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-07-22 02:17:36 -04:00
Code Issues Packages Projects Releases Wiki Activity

of: reserved_mem: zero total_reserved_mem_cnt if no valid /reserved-memory entry

Browse Source 
Prepare for storing /memreserve/ entries in the reserved_mem array.
Zero total_reserved_mem_cnt if no valid /reserved-memory entry,
instead of keeping it's initial value of MAX_RESERVED_REGIONS, this
allows accounting /memreserve entries based on total_reserved_mem_cnt
in a follow-up patch.

No functional change.

Signed-off-by: Wandun Chen <chenwandun@lixiang.com>
Link: https://patch.msgid.link/20260527032917.3385849-5-chenwandun1@gmail.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
This commit is contained in:
Wandun Chen
2026-05-27 11:29:10 +08:00
committed by Rob Herring (Arm)
parent cfba13a186
commit 50a488de5f
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/of/of_reserved_mem.c
View File

@@ -336,11 +336,14 @@ int __init fdt_scan_reserved_mem(void)
const void *fdt = initial_boot_params;
node = fdt_path_offset(fdt, "/reserved-memory");
if (node < 0)
if (node < 0) {
total_reserved_mem_cnt = 0;
return -ENODEV;
}
if (__reserved_mem_check_root(node) != 0) {
pr_err("Reserved memory: unsupported node format, ignoring\n");
total_reserved_mem_cnt = 0;
return -EINVAL;
}