From nobody Sun Feb 8 13:17:10 2026 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 4335B274FD3; Tue, 21 Oct 2025 02:56:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761015407; cv=none; b=cgz85xUNnsPbgAIlvPPzWrmc01RNBZ3ffsdMIVP+55Ns/OWru1kwvCgYOXFWwmF3DTIBQIs54zNDNLlHCwjA+IVrLjkrin3+inICrAm6aIObPXz+JzlAwmq+kz3349RzyvP0VmShk7/q8JLY1O3NDi8lg5EDaO1V9ID2z9KhHQc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761015407; c=relaxed/simple; bh=CxJm60S2gZHUoWCZVhWJAPPBtiNPP28nE8Kbbp6mI7g=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=m6AaUqu0vE+V9G/3JULahH6yjVpKL3obLfWFRjHnhtCM01CMAdebxUwO/TZA8OlqcYJKDfUNRTR1Hm+TNA7i2EcA/YlTF+YMXMZaj0KqbFG/T7Anp8NhQne1OEHq3fOqP1YG68jqPZjlCgWNogE848FcZ/msR23HJyrDtjgqnps= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D39371063; Mon, 20 Oct 2025 19:56:36 -0700 (PDT) Received: from ergosum.cambridge.arm.com (ergosum.cambridge.arm.com [10.1.196.45]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 852D03F59E; Mon, 20 Oct 2025 19:56:43 -0700 (PDT) From: Anshuman Khandual To: linux-mm@kvack.org Cc: Anshuman Khandual , linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-s390@vger.kernel.org, linux-arm-kernel@lists.infradead.org, virtualization@lists.linux.dev Subject: [PATCH] mm: Make INVALID_PHYS_ADDR a generic macro Date: Tue, 21 Oct 2025 03:56:38 +0100 Message-Id: <20251021025638.2420216-1-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.30.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" INVALID_PHYS_ADDR has very similar definitions across the code base. Hence just move that inside header for more generic usage. Also drop the now redundant ones which are no longer required. Cc: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org Cc: iommu@lists.linux.dev Cc: linux-s390@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: virtualization@lists.linux.dev Signed-off-by: Anshuman Khandual Acked-by: Alexander Gordeev # s390 --- arch/arm64/mm/mmu.c | 2 -- arch/s390/boot/vmem.c | 1 - drivers/vdpa/vdpa_user/iova_domain.h | 2 -- include/linux/mm.h | 2 ++ kernel/dma/swiotlb.c | 2 -- 5 files changed, 2 insertions(+), 7 deletions(-) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index e80bb623ef53..1da02d908c30 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -470,8 +470,6 @@ static void __create_pgd_mapping(pgd_t *pgdir, phys_add= r_t phys, mutex_unlock(&fixmap_lock); } =20 -#define INVALID_PHYS_ADDR (-1ULL) - static phys_addr_t __pgd_pgtable_alloc(struct mm_struct *mm, gfp_t gfp, enum pgtable_type pgtable_type) { diff --git a/arch/s390/boot/vmem.c b/arch/s390/boot/vmem.c index cea3de4dce8c..fbe64ffdfb96 100644 --- a/arch/s390/boot/vmem.c +++ b/arch/s390/boot/vmem.c @@ -16,7 +16,6 @@ #include "decompressor.h" #include "boot.h" =20 -#define INVALID_PHYS_ADDR (~(phys_addr_t)0) struct ctlreg __bootdata_preserved(s390_invalid_asce); =20 #ifdef CONFIG_PROC_FS diff --git a/drivers/vdpa/vdpa_user/iova_domain.h b/drivers/vdpa/vdpa_user/= iova_domain.h index 775cad5238f3..a923971a64f5 100644 --- a/drivers/vdpa/vdpa_user/iova_domain.h +++ b/drivers/vdpa/vdpa_user/iova_domain.h @@ -17,8 +17,6 @@ =20 #define IOVA_START_PFN 1 =20 -#define INVALID_PHYS_ADDR (~(phys_addr_t)0) - #define BOUNCE_MAP_SHIFT 12 #define BOUNCE_MAP_SIZE (1 << BOUNCE_MAP_SHIFT) #define BOUNCE_MAP_MASK (~(BOUNCE_MAP_SIZE - 1)) diff --git a/include/linux/mm.h b/include/linux/mm.h index d16b33bacc32..543a5f780874 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -105,6 +105,8 @@ extern int mmap_rnd_compat_bits __read_mostly; # endif #endif =20 +#define INVALID_PHYS_ADDR (~(phys_addr_t)0) + #include #include =20 diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 0d37da3d95b6..a547c7693135 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -61,8 +61,6 @@ */ #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT) =20 -#define INVALID_PHYS_ADDR (~(phys_addr_t)0) - /** * struct io_tlb_slot - IO TLB slot descriptor * @orig_addr: The original address corresponding to a mapped entry. --=20 2.30.2