[PATCH 0/3] Add generic-support for linux,elfcorehdr and fix riscv
geert+renesas at glider.be
Tue Jun 15 11:17:24 PDT 2021
While working on v4 of "[PATCH v3] ARM: Parse kdump DT properties", I
noticed the recently (v5.13-rc1) introduced RISC-V crash kernel support
uses "linux,elfcorehdr" in a non-standard way. Instead of relying on a
"linux,elfcorehdr" property under the "/chosen" node, RISC-V uses a
reserved memory node with the "linux,elfcorehdr" compatible value.
As we may want to fix riscv before the release of v5.13, I decided not
to wait until my full v4 is ready, but fast-track generic
"linux,elfcorehdr" handling instead.
This series consists of 3 patches:
1. Generic handling of "linux,elfcorehdr", as requested by Rob in a
review comment for ,
2. Drop the non-standard code from riscv. It can just use the generic
code instead (needs corresponding changes to WIP kexec-tools),
3. Drop the now duplicate code from arm64. This can be postponed, as
it can co-exist safely with the generic code.
This has been tested on arm32 (with a WIP successor of ), and
compile-tested on riscv64 and arm64.
Thanks for your comments!
 "[PATCH v3] ARM: Parse kdump DT properties"
Geert Uytterhoeven (3):
of: fdt: Add generic support for parsing elf core header properties
riscv: Remove non-standard linux,elfcorehdr handling
arm64: kdump: Remove custom linux,elfcorehdr parsing
Documentation/devicetree/bindings/chosen.txt | 6 ++--
arch/arm64/mm/init.c | 21 -----------
arch/riscv/mm/init.c | 20 -----------
drivers/of/fdt.c | 37 ++++++++++++++++++--
4 files changed, 37 insertions(+), 47 deletions(-)
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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