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| author | Wandun Chen <chenwandun@lixiang.com> | 2026-05-27 11:29:10 +0800 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2026-06-12 09:36:37 -0500 |
| commit | 50a488de5fccfc58eedc6d0525f92dc64a41f806 (patch) | |
| tree | 960452548cc421039d8f37339877adfeb9f3b9d5 /drivers/of | |
| parent | cfba13a18672415591d4db5320ac56ef67b460f4 (diff) | |
| download | linux-next-50a488de5fccfc58eedc6d0525f92dc64a41f806.tar.gz linux-next-50a488de5fccfc58eedc6d0525f92dc64a41f806.zip | |
of: reserved_mem: zero total_reserved_mem_cnt if no valid /reserved-memory entry
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>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/of_reserved_mem.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index c41f5550cb7b..82222bd45ac6 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -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; } |