[v4,07/10] arm64: kdump: Remove custom linux, elfcorehdr parsing

Commit Message

Geert Uytterhoeven July 14, 2021, 12:50 p.m. UTC

Remove the architecture-specific code for parsing the "linux,elfcorehdr"
property under the "/chosen" node in DT, as the platform-agnostic
handling in the FDT core code already takes care of this.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
---
v4:
  - s/handlng/parsing/ in patch description.
---
 arch/arm64/mm/init.c | 21 ---------------------
 1 file changed, 21 deletions(-)

Patch

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 8490ed2917ff2430..946e246660f2b180 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -125,25 +125,6 @@  static void __init reserve_crashkernel(void)
 #endif /* CONFIG_KEXEC_CORE */
 
 #ifdef CONFIG_CRASH_DUMP
-static int __init early_init_dt_scan_elfcorehdr(unsigned long node,
-		const char *uname, int depth, void *data)
-{
-	const __be32 *reg;
-	int len;
-
-	if (depth != 1 || strcmp(uname, "chosen") != 0)
-		return 0;
-
-	reg = of_get_flat_dt_prop(node, "linux,elfcorehdr", &len);
-	if (!reg || (len < (dt_root_addr_cells + dt_root_size_cells)))
-		return 1;
-
-	elfcorehdr_addr = dt_mem_next_cell(dt_root_addr_cells, &reg);
-	elfcorehdr_size = dt_mem_next_cell(dt_root_size_cells, &reg);
-
-	return 1;
-}
-
 /*
  * reserve_elfcorehdr() - reserves memory for elf core header
  *
@@ -154,8 +135,6 @@  static int __init early_init_dt_scan_elfcorehdr(unsigned long node,
  */
 static void __init reserve_elfcorehdr(void)
 {
-	of_scan_flat_dt(early_init_dt_scan_elfcorehdr, NULL);
-
 	if (!elfcorehdr_size)
 		return;