diff options
| author |   Nick Kossifidis <mick@ics.forth.gr> | 2018-11-10 02:53:17 +0200 |
|---|---|---|
| committer |   Rob Herring <robh@kernel.org> | 2018-12-03 17:41:59 -0600 |
| commit | e1e5254427525d59a184771b122469c998e53b58 (patch) | |
| tree | c09bf343733749924b9d5f20981972af38d80679 /drivers/of | |
| parent | kbuild: Enable dtc graph_port warning by default (diff) | |
| download | linux-dev-e1e5254427525d59a184771b122469c998e53b58.tar.xz linux-dev-e1e5254427525d59a184771b122469c998e53b58.zip | |
OF: Add a warning in case chosen node is not present
On architectures that only get their bootargs through devicetree's
chosen node (such as RISC-V), that node is mandatory. After a
discussion with Rob [1] I'm adding a warning in case chosen node
is not present, to let users know about it.
[1]: https://patchwork.ozlabs.org/patch/984224/#2016136
Signed-off-by: Nick Kossifidis <mick@ics.forth.gr>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/fdt.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index cd72a41fcab2..7099c652c6a5 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -1207,8 +1207,12 @@ bool __init early_init_dt_verify(void *params) void __init early_init_dt_scan_nodes(void) { + int rc = 0; + /* Retrieve various information from the /chosen node */ - of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line); + rc = of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line); + if (!rc) + pr_warn("No chosen node found, continuing without\n"); /* Initialize {size,address}-cells info */ of_scan_flat_dt(early_init_dt_scan_root, NULL); |