From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9693DC5DF7F for ; Tue, 18 Aug 2026 04:00:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id B71BA6B08B0; Tue, 18 Aug 2026 00:00:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B229B6B08B4; Tue, 18 Aug 2026 00:00:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A12386B08B6; Tue, 18 Aug 2026 00:00:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 6C7296B08B0 for ; Tue, 18 Aug 2026 00:00:52 -0400 (EDT) Received: from smtpin17.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay04.hostedemail.com (Postfix) with ESMTP id C7A941A0AAF for ; Tue, 18 Aug 2026 04:00:51 +0000 (UTC) X-FDA: 85113039102.17.5D9A25A Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf30.hostedemail.com (Postfix) with ESMTP id B550F80005 for ; Tue, 18 Aug 2026 04:00:49 +0000 (UTC) Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=arm.com header.s=foss header.b=Nm9wKCIr; spf=pass (imf30.hostedemail.com: domain of anshuman.khandual@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=anshuman.khandual@arm.com; dmarc=pass (policy=none) header.from=arm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1787025650; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=JBldtpHBDgaNn5UCzD5QqxCVKi38f4fFGgLWcwhAWyo=; b=ZKSM/Hjb3ahA24eXSwnmBvo7jwYgmJk4Lcr5RcrmjjM/rt5QLvkHm9gQFj00gRB4zAE/19 0tEEfMvrpYt5sOyccjFSnR660Ry8eG0DxDTu0r6Kx/fgx3rWM7Xlz6sQ1zxHHIcLae21Tw Rvyol+wTRB94u6gEs9pWBc70snYmwlA= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1787025650; b=ytbA8/ada8qjb3k2opuKqZt6BS8Ndke7yMfLlb9AEeeDKgaTsDjiwbjwOuxx6dLyRD1bGt eO686WRUczVnRwBGNN+9yGnnVkqL50LOc9z1COIW//cC/aZV49Ev4KeQYoU4B0+nqGmGz1 Av/3vBpUqf/IzdDMHdQu7iRENPBygZw= ARC-Authentication-Results: i=1; imf30.hostedemail.com; dkim=pass header.d=arm.com header.s=foss header.b=Nm9wKCIr; spf=pass (imf30.hostedemail.com: domain of anshuman.khandual@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=anshuman.khandual@arm.com; dmarc=pass (policy=none) header.from=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 D6A7D1713; Mon, 17 Aug 2026 21:00:44 -0700 (PDT) Received: from localhost (a085714.arm.com [10.164.19.28]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 09A313F66F; Mon, 17 Aug 2026 21:00:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1787025648; bh=ttb24YxqPfvdlZDv4/6sPaZz7dp5RDI+R8A7FcbdkQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Nm9wKCIrKirdGI7EsjFmNpzvktBxen3s+Y8bQddcn8JS5ntzJoAry+6wo+3u4vhyn M7CRYhYAvk1FZnrpGWYeR2L9tvn1Sn/4mF9BXA7BiP3Pw3dmPL/RpL6VcCsRFudXyN 14LSMlFlRUiV28bQxOW5lFnD7s8QFTIgvbWS0vko= From: Anshuman Khandual To: linux-mm@kvack.org, akpm@linux-foundation.org, david@kernel.org Cc: Anshuman Khandual , Yoshinori Sato , Rich Felker , John Paul Adrian Glaubitz , "James E.J. Bottomley" , Helge Deller , Huacai Chen , WANG Xuerui , linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Lorenzo Stoakes Subject: [RFC V3 1/8] mm: Make ptrval_to_str() generally available Date: Tue, 18 Aug 2026 09:30:34 +0530 Message-ID: <20260818040041.1891769-2-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260818040041.1891769-1-anshuman.khandual@arm.com> References: <20260818040041.1891769-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: fxzwkqa3pnrknjahpwaowub11m3q1z73 X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: B550F80005 X-HE-Tag: 1787025649-767579 X-HE-Meta: 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 BLHauLoP 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Move ptrval_to_str() inside a header thus making the helper more generally available for new users which are being added later. While here, also move another related string size macro PTVAL_STR_MAX inside the header as well. Cc: Andrew Morton Cc: David Hildenbrand Cc: Lorenzo Stoakes Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- include/linux/mm_types.h | 15 +++++++++++++++ mm/memory.c | 16 ++-------------- 2 files changed, 17 insertions(+), 14 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index b18c2b2e7d2c..a5b514e55dd7 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -2001,4 +2001,19 @@ static inline unsigned long mmf_init_legacy_flags(unsigned long flags) return flags & MMF_INIT_LEGACY_MASK; } +void ptval_bytes_to_hex_str(char *buf, size_t buf_size, const void *entry, size_t entry_size); + +#define ptval_to_str(buf, val) \ + do { \ + auto __val = (val); \ + \ + ptval_bytes_to_hex_str((buf), sizeof(buf), &__val, sizeof(__val)); \ + } while (0) + +#if defined(__SIZEOF_INT128__) +#define PTVAL_STR_MAX (32 + 1) /* Max 128-bit value in hex + NUL */ +#else +#define PTVAL_STR_MAX (16 + 1) /* Max 64-bit value in hex + NUL */ +#endif + #endif /* _LINUX_MM_TYPES_H */ diff --git a/mm/memory.c b/mm/memory.c index 01893720b6d8..752fc04ef8ac 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -46,6 +46,7 @@ #include #include #include +#include #include #include #include @@ -519,7 +520,7 @@ static bool is_bad_page_map_ratelimited(void) return false; } -static void ptval_bytes_to_hex_str(char *buf, size_t buf_size, const void *entry, size_t entry_size) +void ptval_bytes_to_hex_str(char *buf, size_t buf_size, const void *entry, size_t entry_size) { if (WARN_ON_ONCE(buf_size < entry_size * 2 + 1)) { snprintf(buf, buf_size, "overflow"); @@ -546,19 +547,6 @@ static void ptval_bytes_to_hex_str(char *buf, size_t buf_size, const void *entry } } -#define ptval_to_str(buf, val) \ - do { \ - auto __val = (val); \ - \ - ptval_bytes_to_hex_str((buf), sizeof(buf), &__val, sizeof(__val)); \ - } while (0) - -#if defined(__SIZEOF_INT128__) -#define PTVAL_STR_MAX (32 + 1) /* Max 128-bit value in hex + NUL */ -#else -#define PTVAL_STR_MAX (16 + 1) /* Max 64-bit value in hex + NUL */ -#endif - static void __print_bad_page_map_pgtable(struct mm_struct *mm, unsigned long addr) { char pgd_str[PTVAL_STR_MAX]; -- 2.43.0