linux-kernel - [PATCH] csky/mm: fix build errors cause by folio flags changes

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Message-ID: <20251015064759.2993842-1-rppt@kernel.org>
Date: Wed, 15 Oct 2025 09:47:59 +0300
From: Mike Rapoport <rppt@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Guo Ren <guoren@...nel.org>,
	Matthew Wilcox <willy@...radead.org>,
	Mike Rapoport <rppt@...nel.org>,
	linux-csky@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: [PATCH] csky/mm: fix build errors cause by folio flags changes

From: "Mike Rapoport (Microsoft)" <rppt@...nel.org>

Kernel compilation on csky fails because csky was not updated during
conversion of folio flags to memdesc_flags_t:

arch/csky/abiv2/inc/abi/cacheflush.h: In function 'flush_dcache_folio':
arch/csky/abiv2/inc/abi/cacheflush.h:23:39: error: passing argument 2 of 'const_test_bit' from incompatible pointer type [-Werror=incompatible-pointer-types]
   23 |         if (test_bit(PG_dcache_clean, &folio->flags))
      |                                       ^~~~~~~~~~~~~
      |                                       |
      |                                       memdesc_flags_t *
include/linux/bitops.h:47:24: note: in definition of macro 'bitop'
   47 |          const##op(nr, addr) : op(nr, addr))
      |                        ^~~~
arch/csky/abiv2/inc/abi/cacheflush.h:23:13: note: in expansion of macro 'test_bit'
   23 |         if (test_bit(PG_dcache_clean, &folio->flags))
      |             ^~~~~~~~

Update references of folio->flags in arch/csky.

Fixes: 53fbef56e07d ("mm: introduce memdesc_flags_t")
Signed-off-by: Mike Rapoport (Microsoft) <rppt@...nel.org>
---
 arch/csky/abiv2/cacheflush.c         | 2 +-
 arch/csky/abiv2/inc/abi/cacheflush.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/csky/abiv2/cacheflush.c b/arch/csky/abiv2/cacheflush.c
index 876028b1083f..064b0f0f95ca 100644
--- a/arch/csky/abiv2/cacheflush.c
+++ b/arch/csky/abiv2/cacheflush.c
@@ -21,7 +21,7 @@ void update_mmu_cache_range(struct vm_fault *vmf, struct vm_area_struct *vma,
 
 	folio = page_folio(pfn_to_page(pfn));
 
-	if (test_and_set_bit(PG_dcache_clean, &folio->flags))
+	if (test_and_set_bit(PG_dcache_clean, &folio->flags.f))
 		return;
 
 	icache_inv_range(address, address + nr*PAGE_SIZE);
diff --git a/arch/csky/abiv2/inc/abi/cacheflush.h b/arch/csky/abiv2/inc/abi/cacheflush.h
index 6513ac5d2578..da51a0f02391 100644
--- a/arch/csky/abiv2/inc/abi/cacheflush.h
+++ b/arch/csky/abiv2/inc/abi/cacheflush.h
@@ -20,8 +20,8 @@
 
 static inline void flush_dcache_folio(struct folio *folio)
 {
-	if (test_bit(PG_dcache_clean, &folio->flags))
-		clear_bit(PG_dcache_clean, &folio->flags);
+	if (test_bit(PG_dcache_clean, &folio->flags.f))
+		clear_bit(PG_dcache_clean, &folio->flags.f);
 }
 #define flush_dcache_folio flush_dcache_folio
 

base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
-- 
2.50.1