[PATCH v4 06/10] riscv: Remove non-standard linux,elfcorehdr handling
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: 2021-07-14 12:51:04
Also in:
kexec, linux-arm-kernel, linux-mm, linux-renesas-soc, linux-riscv, lkml
Subsystem:
risc-v architecture, the rest · Maintainers:
Paul Walmsley, Palmer Dabbelt, Albert Ou, Linus Torvalds
RISC-V uses platform-specific code to locate the elf core header in
memory. However, this does not conform to the standard
"linux,elfcorehdr" DT bindings, as it relies on a reserved memory node
with the "linux,elfcorehdr" compatible value, instead of on a
"linux,elfcorehdr" property under the "/chosen" node.
The non-compliant code can just be removed, as the standard behavior is
already implemented by platform-agnostic handling in the FDT core code.
Fixes: 5640975003d0234d ("RISC-V: Add crash kernel support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v4:
- No changes.
---
arch/riscv/mm/init.c | 20 --------------------
1 file changed, 20 deletions(-)
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 269fc648ef3d84b2..4aa4b6a034086df6 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c@@ -829,26 +829,6 @@ static void __init reserve_crashkernel(void) } #endif /* CONFIG_KEXEC_CORE */ -#ifdef CONFIG_CRASH_DUMP -/* - * We keep track of the ELF core header of the crashed - * kernel with a reserved-memory region with compatible - * string "linux,elfcorehdr". Here we register a callback - * to populate elfcorehdr_addr/size when this region is - * present. Note that this region will be marked as - * reserved once we call early_init_fdt_scan_reserved_mem() - * later on. - */ -static int __init elfcore_hdr_setup(struct reserved_mem *rmem) -{ - elfcorehdr_addr = rmem->base; - elfcorehdr_size = rmem->size; - return 0; -} - -RESERVEDMEM_OF_DECLARE(elfcorehdr, "linux,elfcorehdr", elfcore_hdr_setup); -#endif - void __init paging_init(void) { setup_bootmem();
--
2.25.1