linux-kernel - [PATCH 1/2] x86/kexec: Remove unnecessary arch_kexec_kernel_image

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20221215182339.129803-2-helgaas@kernel.org>
Date:   Thu, 15 Dec 2022 12:23:38 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Eric Biederman <ebiederm@...ssion.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH 1/2] x86/kexec: Remove unnecessary arch_kexec_kernel_image_load()

From: Bjorn Helgaas <bhelgaas@...gle.com>

The x86 implementation of arch_kexec_kernel_image_load() is functionally
identical to the generic arch_kexec_kernel_image_load().

Remove it and use the generic arch_kexec_kernel_image_load().  No
functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 arch/x86/include/asm/kexec.h       |  3 ---
 arch/x86/kernel/machine_kexec_64.c | 11 -----------
 include/linux/kexec.h              |  2 --
 3 files changed, 16 deletions(-)

diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index a3760ca796aa..5b77bbc28f96 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -200,9 +200,6 @@ int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
 				     const Elf_Shdr *symtab);
 #define arch_kexec_apply_relocations_add arch_kexec_apply_relocations_add
 
-void *arch_kexec_kernel_image_load(struct kimage *image);
-#define arch_kexec_kernel_image_load arch_kexec_kernel_image_load
-
 int arch_kimage_file_post_load_cleanup(struct kimage *image);
 #define arch_kimage_file_post_load_cleanup arch_kimage_file_post_load_cleanup
 #endif
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 0611fd83858e..1a3e2c05a8a5 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -374,17 +374,6 @@ void machine_kexec(struct kimage *image)
 /* arch-dependent functionality related to kexec file-based syscall */
 
 #ifdef CONFIG_KEXEC_FILE
-void *arch_kexec_kernel_image_load(struct kimage *image)
-{
-	if (!image->fops || !image->fops->load)
-		return ERR_PTR(-ENOEXEC);
-
-	return image->fops->load(image, image->kernel_buf,
-				 image->kernel_buf_len, image->initrd_buf,
-				 image->initrd_buf_len, image->cmdline_buf,
-				 image->cmdline_buf_len);
-}
-
 /*
  * Apply purgatory relocations.
  *
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 5dd4343c1bbe..c08d5d52223a 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -207,12 +207,10 @@ static inline int arch_kimage_file_post_load_cleanup(struct kimage *image)
 }
 #endif
 
-#ifndef arch_kexec_kernel_image_load
 static inline void *arch_kexec_kernel_image_load(struct kimage *image)
 {
 	return kexec_image_load_default(image);
 }
-#endif
 
 #ifdef CONFIG_KEXEC_SIG
 #ifdef CONFIG_SIGNED_PE_FILE_VERIFICATION
-- 
2.25.1