From a258a3cb1895e3acf5f2fe245d17426e894bc935 Mon Sep 17 00:00:00 2001 From: Tiezhu Yang Date: Sat, 6 Dec 2025 10:39:48 +0800 Subject: [PATCH] LoongArch: Use unsigned long for _end and _text It is better to use unsigned long rather than long for _end and _text to calculate the kernel length. Cc: stable@vger.kernel.org # v6.3+ Fixes: e5f02b51fa0c ("LoongArch: Add support for kernel address space layout randomization (KASLR)") Signed-off-by: Tiezhu Yang Signed-off-by: Huacai Chen --- arch/loongarch/kernel/relocate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/loongarch/kernel/relocate.c b/arch/loongarch/kernel/relocate.c index b5e2312a2fca..76abbb8d2931 100644 --- a/arch/loongarch/kernel/relocate.c +++ b/arch/loongarch/kernel/relocate.c @@ -183,7 +183,7 @@ static inline void __init *determine_relocation_address(void) if (kaslr_disabled()) return destination; - kernel_length = (long)_end - (long)_text; + kernel_length = (unsigned long)_end - (unsigned long)_text; random_offset = get_random_boot() << 16; random_offset &= (CONFIG_RANDOMIZE_BASE_MAX_OFFSET - 1); @@ -232,7 +232,7 @@ unsigned long __init relocate_kernel(void) early_memunmap(cmdline, COMMAND_LINE_SIZE); if (random_offset) { - kernel_length = (long)(_end) - (long)(_text); + kernel_length = (unsigned long)(_end) - (unsigned long)(_text); /* Copy the kernel to it's new location */ memcpy(location_new, _text, kernel_length); -- 2.47.3