Re: [PATCH v4 10/11] microblaze: Use is_kernel_text() helper
From: Michal Simek <monstr@monstr.eu>
Date: 2021-09-30 10:13:21
Also in:
bpf, linux-alpha, linux-arch, lkml
On 9/30/21 9:11 AM, Kefeng Wang wrote:
quoted hunk ↗ jump to hunk
Use is_kernel_text() helper to simplify code. Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Kefeng Wang <redacted> --- arch/microblaze/mm/pgtable.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c index c1833b159d3b..9f73265aad4e 100644 --- a/arch/microblaze/mm/pgtable.c +++ b/arch/microblaze/mm/pgtable.c@@ -34,6 +34,7 @@ #include <linux/mm_types.h> #include <linux/pgtable.h> #include <linux/memblock.h> +#include <linux/kallsyms.h> #include <asm/pgalloc.h> #include <linux/io.h>@@ -171,7 +172,7 @@ void __init mapin_ram(void) for (s = 0; s < lowmem_size; s += PAGE_SIZE) { f = _PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_SHARED | _PAGE_HWEXEC; - if ((char *) v < _stext || (char *) v >= _etext) + if (!is_kernel_text(v)) f |= _PAGE_WRENABLE; else /* On the MicroBlaze, no user access
Acked-by: Michal Simek <redacted> Thanks, Michal -- Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91 w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel - Xilinx Microblaze Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs