Re: [PATCH v28 14/32] mm: Introduce VM_SHADOW_STACK for shadow stack memory

From: Yu, Yu-cheng
Date: Tue Aug 17 2021 - 14:35:19 EST


On 8/16/2021 9:35 AM, Borislav Petkov wrote:
On Thu, Jul 22, 2021 at 01:52:01PM -0700, Yu-cheng Yu wrote:
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index eb97468dfe4c..02c70198b989 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -662,6 +662,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_MINOR
[ilog2(VM_UFFD_MINOR)] = "ui",
#endif /* CONFIG_HAVE_ARCH_USERFAULTFD_MINOR */
+#ifdef CONFIG_ARCH_HAS_SHADOW_STACK
+ [ilog2(VM_SHADOW_STACK)]= "ss",
+#endif


ERROR: spaces required around that '=' (ctx:VxW)
#109: FILE: fs/proc/task_mmu.c:666:
+ [ilog2(VM_SHADOW_STACK)]= "ss",
^

total: 1 errors, 0 warnings, 49 lines checked

Please integrate scripts/checkpatch.pl into your patch creation
workflow. Some of the warnings/errors *actually* make sense.


I will add a space there.

Thanks,
Yu-cheng