From 724103429a2d0a1f6b201bbc0866a410098c164e Mon Sep 17 00:00:00 2001 From: Guo Ren Date: Fri, 22 Dec 2023 06:57:01 -0500 Subject: [PATCH] riscv: mm: Fixup compat arch_get_mmap_end commit 97b7ac69be2e5a683e898f5267f659fde52efdd5 upstream. When the task is in COMPAT mode, the arch_get_mmap_end should be 2GB, not TASK_SIZE_64. The TASK_SIZE has contained is_compat_mode() detection, so change the definition of STACK_TOP_MAX to TASK_SIZE directly. Cc: stable@vger.kernel.org Fixes: add2cc6b6515 ("RISC-V: mm: Restrict address space for sv39,sv48,sv57") Signed-off-by: Guo Ren Signed-off-by: Guo Ren Reviewed-by: Leonardo Bras Reviewed-by: Charlie Jenkins Link: https://lore.kernel.org/r/20231222115703.2404036-3-guoren@kernel.org Signed-off-by: Palmer Dabbelt Signed-off-by: Greg Kroah-Hartman --- arch/riscv/include/asm/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/processor.h b/arch/riscv/include/asm/processor.h index 3e23e1786d05..4f6af8c6cfa0 100644 --- a/arch/riscv/include/asm/processor.h +++ b/arch/riscv/include/asm/processor.h @@ -15,7 +15,7 @@ #ifdef CONFIG_64BIT #define DEFAULT_MAP_WINDOW (UL(1) << (MMAP_VA_BITS - 1)) -#define STACK_TOP_MAX TASK_SIZE_64 +#define STACK_TOP_MAX TASK_SIZE #define arch_get_mmap_end(addr, len, flags) \ ({ \