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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>
This commit is contained in:
Jisheng Zhang 2021-05-09 00:44:43 +08:00 committed by Palmer Dabbelt
parent 02ccdeed18
commit bab0d47c0e
No known key found for this signature in database
GPG Key ID: 2E1319F35FBB1889
2 changed files with 8 additions and 7 deletions
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4
arch/riscv/include/asm/kexec.h
View File

@ -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,

11
arch/riscv/kernel/machine_kexec.c
View File

@ -14,8 +14,9 @@
#include <asm/set_memory.h> /* For set_memory_x() */
#include <linux/compiler.h> /* For unreachable() */
#include <linux/cpu.h> /* For cpu_down() */
#include <linux/reboot.h>
/**
/*
* kexec_image_info - Print received image details
*/
static void
@ -39,7 +40,7 @@ kexec_image_info(const struct kimage *image)
}
}
/**
/*
* machine_kexec_prepare - Initialize kexec
*
* This function is called from do_kexec_load, when the user has
@ -100,7 +101,7 @@ machine_kexec_prepare(struct kimage *image)
}
/**
/*
* machine_kexec_cleanup - Cleanup any leftovers from
* machine_kexec_prepare
*
@ -135,7 +136,7 @@ void machine_shutdown(void)
#endif
}
/**
/*
* machine_crash_shutdown - Prepare to kexec after a kernel crash
*
* This function is called by crash_kexec just before machine_kexec
@ -151,7 +152,7 @@ machine_crash_shutdown(struct pt_regs *regs)
pr_info("Starting crashdump kernel...\n");
}
/**
/*
* machine_kexec - Jump to the loaded kimage
*
* This function is called by kernel_kexec which is called by the