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Message-Id: <20240221154549.2026073-1-arnd@kernel.org>
Date: Wed, 21 Feb 2024 16:45:21 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>,
David Hildenbrand <david@...hat.com>
Cc: Arnd Bergmann <arnd@...db.de>,
Will Deacon <will@...nel.org>,
"Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
Nick Piggin <npiggin@...il.com>,
Peter Zijlstra <peterz@...radead.org>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Bill Wendling <morbo@...gle.com>,
Justin Stitt <justinstitt@...gle.com>,
Ryan Roberts <ryan.roberts@....com>,
"Vishal Moola (Oracle)" <vishal.moola@...il.com>,
Alistair Popple <apopple@...dia.com>,
linux-arch@...r.kernel.org,
linux-mm@...ck.org,
linux-kernel@...r.kernel.org,
llvm@...ts.linux.dev
Subject: [PATCH] mm/mmu_gather: change __tlb_remove_tlb_entry() to an inline function
From: Arnd Bergmann <arnd@...db.de>
clang complains about tlb_remove_tlb_entries() not using the 'ptep' variable
when __tlb_remove_tlb_entry() is an empty macro:
include/asm-generic/tlb.h:627:10: error: parameter 'ptep' set but not used [-Werror,-Wunused-but-set-parameter]
Change it to an equivalent inline function that avoids the warning since
the compiler can see how the variable gets passed into it.
Fixes: 66958b447695 ("mm/mmu_gather: add tlb_remove_tlb_entries()")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
include/asm-generic/tlb.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index bd00dd238b79..709830274b75 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -600,7 +600,9 @@ static inline void tlb_flush_p4d_range(struct mmu_gather *tlb,
}
#ifndef __tlb_remove_tlb_entry
-#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
+static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, unsigned long address)
+{
+}
#endif
/**
--
2.39.2
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