x86: Use ELF fields defined in 'struct kimage'

ELF related fields elf_headers, elf_headers_sz, and elf_load_addr
have been moved from 'struct kimage_arch' to 'struct kimage'.

Use the ELF fields defined in 'struct kimage'.
Suggested-by: Rob Herring <robh@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210221174930.27324-5-nramas@linux.microsoft.com

arch/x86/include/asm/kexec.h

@@ -150,11 +150,6 @@ struct kimage_arch {
 	pud_t *pud;
 	pmd_t *pmd;
 	pte_t *pte;
-
-	/* Core ELF header buffer */
-	void *elf_headers;
-	unsigned long elf_headers_sz;
-	unsigned long elf_load_addr;
 };
 #endif /* CONFIG_X86_32 */
 

arch/x86/kernel/crash.c

@@ -323,8 +323,8 @@ static int memmap_exclude_ranges(struct kimage *image, struct crash_mem *cmem,
 	cmem->nr_ranges = 1;
 
 	/* Exclude elf header region */
-	start = image->arch.elf_load_addr;
-	end = start + image->arch.elf_headers_sz - 1;
+	start = image->elf_load_addr;
+	end = start + image->elf_headers_sz - 1;
 	return crash_exclude_mem_range(cmem, start, end);
 }
 
@@ -407,20 +407,20 @@ int crash_load_segments(struct kimage *image)
 	if (ret)
 		return ret;
 
-	image->arch.elf_headers = kbuf.buffer;
-	image->arch.elf_headers_sz = kbuf.bufsz;
+	image->elf_headers = kbuf.buffer;
+	image->elf_headers_sz = kbuf.bufsz;
 
 	kbuf.memsz = kbuf.bufsz;
 	kbuf.buf_align = ELF_CORE_HEADER_ALIGN;
 	kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
 	ret = kexec_add_buffer(&kbuf);
 	if (ret) {
-		vfree((void *)image->arch.elf_headers);
+		vfree((void *)image->elf_headers);
 		return ret;
 	}
-	image->arch.elf_load_addr = kbuf.mem;
+	image->elf_load_addr = kbuf.mem;
 	pr_debug("Loaded ELF headers at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
-		 image->arch.elf_load_addr, kbuf.bufsz, kbuf.bufsz);
+		 image->elf_load_addr, kbuf.bufsz, kbuf.bufsz);
 
 	return ret;
 }

arch/x86/kernel/kexec-bzimage64.c

@@ -75,7 +75,7 @@ static int setup_cmdline(struct kimage *image, struct boot_params *params,
 
 	if (image->type == KEXEC_TYPE_CRASH) {
 		len = sprintf(cmdline_ptr,
-			"elfcorehdr=0x%lx ", image->arch.elf_load_addr);
+			"elfcorehdr=0x%lx ", image->elf_load_addr);
 	}
 	memcpy(cmdline_ptr + len, cmdline, cmdline_len);
 	cmdline_len += len;

arch/x86/kernel/machine_kexec_64.c

@@ -402,8 +402,8 @@ void machine_kexec(struct kimage *image)
 #ifdef CONFIG_KEXEC_FILE
 void *arch_kexec_kernel_image_load(struct kimage *image)
 {
-	vfree(image->arch.elf_headers);
-	image->arch.elf_headers = NULL;
+	vfree(image->elf_headers);
+	image->elf_headers = NULL;
 
 	if (!image->fops || !image->fops->load)
 		return ERR_PTR(-ENOEXEC);