From: Qiang Ma <maqianga@uniontech.com>
Date: Sun, 9 Nov 2025 08:02:01 +0000 (+0800)
Subject: LoongArch: kexec: Print out debugging message if required
X-Git-Tag: v6.18-rc6~36^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=62cda5e54f7c5e773911b458dd4d10ee8c91b60b;p=thirdparty%2Fkernel%2Flinux.git

LoongArch: kexec: Print out debugging message if required

When specifying '-d' for kexec_file_load interface, loaded locations of
kernel/initrd/cmdline etc can be printed out to help debug.

Commit eb7622d908a0 ("kexec_file, riscv: print out debugging message if
required") fixes the same issue on RISC-V.

So, remove kexec_image_info() because the content has been printed out
in generic code.

And on Loongson-3A5000, the printed messages look like below:

 kexec_file: kernel: 00000000d9aad283 kernel_size: 0x2e77f30
 kexec_file(EFI): No LoongArch PE image header.
 kexec_file: Loaded initrd at 0x80000000 bufsz=0x1637cd0 memsz=0x1638000
 kexec_file(ELF): Loaded kernel at 0x9c20000 bufsz=0x27f1800 memsz=0x2950000
 kexec_file: nr_segments = 2
 kexec_file: segment[0]: buf=0x00000000cc3e6c33 bufsz=0x27f1800 mem=0x9c20000 memsz=0x2950000
 kexec_file: segment[1]: buf=0x00000000bb75a541 bufsz=0x1637cd0 mem=0x80000000 memsz=0x1638000
 kexec_file: kexec_file_load: type:0, start:0xb15d000 head:0x18db60002 flags:0x8

Signed-off-by: Qiang Ma <maqianga@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---

diff --git a/arch/loongarch/kernel/machine_kexec.c b/arch/loongarch/kernel/machine_kexec.c
index e4b2bbc47e623..2d64b7c81e5e4 100644
--- a/arch/loongarch/kernel/machine_kexec.c
+++ b/arch/loongarch/kernel/machine_kexec.c
@@ -39,34 +39,12 @@ static unsigned long systable_ptr;
 static unsigned long start_addr;
 static unsigned long first_ind_entry;
 
-static void kexec_image_info(const struct kimage *kimage)
-{
-	unsigned long i;
-
-	pr_debug("kexec kimage info:\n");
-	pr_debug("\ttype:        %d\n", kimage->type);
-	pr_debug("\tstart:       %lx\n", kimage->start);
-	pr_debug("\thead:        %lx\n", kimage->head);
-	pr_debug("\tnr_segments: %lu\n", kimage->nr_segments);
-
-	for (i = 0; i < kimage->nr_segments; i++) {
-		pr_debug("\t    segment[%lu]: %016lx - %016lx", i,
-			kimage->segment[i].mem,
-			kimage->segment[i].mem + kimage->segment[i].memsz);
-		pr_debug("\t\t0x%lx bytes, %lu pages\n",
-			(unsigned long)kimage->segment[i].memsz,
-			(unsigned long)kimage->segment[i].memsz /  PAGE_SIZE);
-	}
-}
-
 int machine_kexec_prepare(struct kimage *kimage)
 {
 	int i;
 	char *bootloader = "kexec";
 	void *cmdline_ptr = (void *)KEXEC_CMDLINE_ADDR;
 
-	kexec_image_info(kimage);
-
 	kimage->arch.efi_boot = fw_arg0;
 	kimage->arch.systable_ptr = fw_arg2;