Re: [PATCH v2 1/4] mm: declare VMA flags by bit

[Lorenzo Stoakes]

Hi Andrew,

Please apply this fix-patch to solve an issue with the patch accidentally
causing duplication in rust bindgen when a VMA flag resolves to something
bindgen can generate itself.

To fix it, we simply blacklist all the VMA flags used by rust from bindgen
auto-generating.

I repro'd the issue locally thanks to Alice for reporting and giving
insight into the issue + explaining how to fix it! :)

Thanks, Lorenzo

----8<----
>From f441480340ff608869f3655b2371ca70c77eb82b Mon Sep 17 00:00:00 2001
From: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Date: Fri, 14 Nov 2025 14:19:04 +0000
Subject: [PATCH] fixup

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
---
 rust/bindgen_parameters | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/rust/bindgen_parameters b/rust/bindgen_parameters
index e13c6f9dd17b..fd2fd1c3cb9a 100644
--- a/rust/bindgen_parameters
+++ b/rust/bindgen_parameters
@@ -35,6 +35,31 @@
 # recognized, block generation of the non-helper constants.
 --blocklist-item ARCH_SLAB_MINALIGN
 --blocklist-item ARCH_KMALLOC_MINALIGN
+--blocklist-item VM_MERGEABLE
+--blocklist-item VM_READ
+--blocklist-item VM_WRITE
+--blocklist-item VM_EXEC
+--blocklist-item VM_SHARED
+--blocklist-item VM_MAYREAD
+--blocklist-item VM_MAYWRITE
+--blocklist-item VM_MAYEXEC
+--blocklist-item VM_MAYEXEC
+--blocklist-item VM_PFNMAP
+--blocklist-item VM_IO
+--blocklist-item VM_DONTCOPY
+--blocklist-item VM_DONTEXPAND
+--blocklist-item VM_LOCKONFAULT
+--blocklist-item VM_ACCOUNT
+--blocklist-item VM_NORESERVE
+--blocklist-item VM_HUGETLB
+--blocklist-item VM_SYNC
+--blocklist-item VM_ARCH_1
+--blocklist-item VM_WIPEONFORK
+--blocklist-item VM_DONTDUMP
+--blocklist-item VM_SOFTDIRTY
+--blocklist-item VM_MIXEDMAP
+--blocklist-item VM_HUGEPAGE
+--blocklist-item VM_NOHUGEPAGE

 # Structs should implement `Zeroable` when all of their fields do.
 --with-derive-custom-struct .*=MaybeZeroable
--
2.51.0