[PATCH V2 5/6] riscv: elf_kexec: Fixup compile warning

guoren
2022-09-04T07:28:22Z

From: Guo Ren <guoren@linux.alibaba.com>

COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1
O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/

../arch/riscv/kernel/elf_kexec.c: In function 'elf_kexec_load':
../arch/riscv/kernel/elf_kexec.c:185:23: warning: variable
'kernel_start' set but not used [-Wunused-but-set-variable]
185 | unsigned long kernel_start;
| ^~~~~~~~~~~~

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
---
arch/riscv/kernel/elf_kexec.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/riscv/kernel/elf_kexec.c b/arch/riscv/kernel/elf_kexec.c
index 0cb94992c15b..bba3723a0914 100644
--- a/arch/riscv/kernel/elf_kexec.c
+++ b/arch/riscv/kernel/elf_kexec.c
@@ -182,7 +182,9 @@ static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
unsigned long new_kernel_pbase = 0UL;
unsigned long initrd_pbase = 0UL;
unsigned long headers_sz;
+#ifdef CONFIG_ARCH_HAS_KEXEC_PURGATORY
unsigned long kernel_start;
+#endif /* CONFIG_ARCH_HAS_KEXEC_PURGATORY */
void *fdt, *headers;
struct elfhdr ehdr;
struct kexec_buf kbuf;
@@ -197,7 +199,9 @@ static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
&old_kernel_pbase, &new_kernel_pbase);
if (ret)
goto out;
+#ifdef CONFIG_ARCH_HAS_KEXEC_PURGATORY
kernel_start = image->start;
+#endif /* CONFIG_ARCH_HAS_KEXEC_PURGATORY */
pr_notice("The entry point of kernel at 0x%lx\n", image->start);

/* Add the kernel binary to the image */
--
2.36.1