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h=From:To:Cc:Subject:Date:From; b=DQ1m2Cq3mutHCmf62FSW3M/unrd1lwHkBQARS34Crz9uY49SCD15QOhS9fI975POz kFUV8asMjEoSR8PU6pJIcBAuXRpW6+B96JcoFVSmZPS2TbwSSK6eZgrTNVFjVnpGMn 15YWHFNgN5s5y5N+xRr55hL75j/kKUrMkGvBYhrnu9WdEM89ixC31s8KmbCsG3tEXQ U3yW6+nNQEsP5WAOqp8VU+7Wzc3/kkG5EUxiiMB74y75dnbtJySeOAoA9/YaglZstS wZ6q/Y+dIKQJE3PsrXY7IBAO5/QOiW7jugWLwpkHD233D6C978J81S4H31EIQLyULy s/jqhLWjiwYtQ== From: Tianyi Chen To: Mike Rapoport Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/4] memblock tests: fix BUILD=32 address conversions and warnings Date: Wed, 23 Sep 2026 11:31:22 +0900 Message-ID: <20260923023126.1910311-1-hi@tychen.cc> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Envelope-From: hi@tychen.cc X-Rspam-User: X-Stat-Signature: po9d8u8qqwtmkzd1rifmxrcuwh7rbtpk X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 31157C0004 X-HE-Tag: 1790130702-96851 X-HE-Meta: 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 2v9kc9Xj dj21JJVLI8Ny2mDtl2j0cGXZ6+Cykn2oCU0mT87Xzws/+2hci+VxTCm8pKaeY7xrINZJWx6grOZGoYFH5vPBidhYLvvqkxYFyijGX5O1e9l35BOoFGSwVTTmegP0/aK/RvKHUasfwErAoPqvmDF/1DzZE0+ZRfbqrfnZlQbJ3DeoXct6+wbOuCDiqAqG4jrTV0lbGHKhPD+9IrKCJ5+m+3mrR04K9GZezMth+MpdRLV6XJad6QAPpCIUC2BAAlladKz6jflz30VRAJHVlUYm85ANlksuJvoVHm2Ha3nkQejigTkBrpSyt1nfBsN1wb2W2XJfRIJhsWOQ8Xv/sFH+UJIeCaMFLFhMVliiU6lr4RJ5ydnNu0zPRIQKjT4waDBJkomGc Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Fix the BUILD=32 physical-address truncation and sign-extension failures, and address the remaining GCC warnings reported during review. Changes in v2: - Use memblock_phys_free() for all synthetic physical ranges in the basic API tests, not only the maximum-address check. - Keep the dummy-memory address conversion fix unchanged. - Use __pa() in tools virt_to_phys() to avoid a pointer-size warning and sign extension of 32-bit pointers with their top bit set. - Initialize end_rgn to avoid GCC's maybe-uninitialized warning. Clang BUILD=32 without NUMA also passes on v1 (189 checks). The earlier cover letter only mentioned the NUMA-enabled configuration tested then. Validated v2 with GCC 13.3.0 and Clang 18.1.3, retaining the default ASan and UBSan flags and adding -Werror. Both compilers build without warnings and pass ./main -v and ./main -m -v in each configuration: - Default and NUMA=1. - BUILD=32, with and without NUMA=1. - 32BIT_PHYS_ADDR_T=1, with and without NUMA=1. - BUILD=32 NUMA=1 MEMBLOCK_DEBUG=1. Each run passes 189 checks without NUMA or 272 with NUMA, including both allocation directions. A separate virt_to_phys() boundary check passes with both compilers in 32- and 64-bit builds; GCC BUILD=32 failed it on v1 for 0x80000000 due to sign extension. v1: https://lore.kernel.org/r/20260916161105.2548281-1-hi@tychen.cc Tianyi Chen (4): memblock tests: use physical addresses for region removal memblock tests: zero-extend simulated memory addresses tools: use __pa() in virt_to_phys() memblock: initialize the region merge end index mm/memblock.c | 2 +- tools/include/linux/mm.h | 2 +- tools/testing/memblock/tests/basic_api.c | 20 ++++++++++---------- tools/testing/memblock/tests/common.c | 6 +++--- 4 files changed, 15 insertions(+), 15 deletions(-) base-commit: 5728d3523f12826a2b180c1c5738f74e33197e14 -- 2.55.0