riscv: kexec: Fix W=1 build warnings

Fixes the following W=1 build warning(s):

In file included from include/linux/kexec.h:28,
                 from arch/riscv/kernel/machine_kexec.c:7:
arch/riscv/include/asm/kexec.h:45:1: warning: ‘extern’ is not at beginning of declaration [-Wold-style-declaration]
   45 | const extern unsigned char riscv_kexec_relocate[];
      | ^~~~~
arch/riscv/include/asm/kexec.h:46:1: warning: ‘extern’ is not at beginning of declaration [-Wold-style-declaration]
   46 | const extern unsigned int riscv_kexec_relocate_size;
      | ^~~~~
arch/riscv/kernel/machine_kexec.c:125:6: warning: no previous prototype for ‘machine_shutdown’ [-Wmissing-prototypes]
  125 | void machine_shutdown(void)
      |      ^~~~~~~~~~~~~~~~
arch/riscv/kernel/machine_kexec.c:147:1: warning: no previous prototype for ‘machine_crash_shutdown’ [-Wmissing-prototypes]
  147 | machine_crash_shutdown(struct pt_regs *regs)
      | ^~~~~~~~~~~~~~~~~~~~~~
arch/riscv/kernel/machine_kexec.c:23: warning: Function parameter or member 'image' not described in 'kexec_image_info'
arch/riscv/kernel/machine_kexec.c:53: warning: Function parameter or member 'image' not described in 'machine_kexec_prepare'
arch/riscv/kernel/machine_kexec.c:114: warning: Function parameter or member 'image' not described in 'machine_kexec_cleanup'
arch/riscv/kernel/machine_kexec.c:148: warning: Function parameter or member 'regs' not described in 'machine_crash_shutdown'
arch/riscv/kernel/machine_kexec.c:167: warning: Function parameter or member 'image' not described in 'machine_kexec'

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/riscv/include/asm/kexec.h b/arch/riscv/include/asm/kexec.h
index 1e954101906a..e4e291d40759 100644
--- a/arch/riscv/include/asm/kexec.h
+++ b/arch/riscv/include/asm/kexec.h
@@ -42,8 +42,8 @@ struct kimage_arch {
 	unsigned long fdt_addr;
 };
 
-const extern unsigned char riscv_kexec_relocate[];
-const extern unsigned int riscv_kexec_relocate_size;
+extern const unsigned char riscv_kexec_relocate[];
+extern const unsigned int riscv_kexec_relocate_size;
 
 typedef void (*riscv_kexec_method)(unsigned long first_ind_entry,
 				   unsigned long jump_addr,