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b=Q0iz61wX8mF1P/AT5iS0RguEKJoHnJbaf7dG2Xaw/wVTBi4SxVOBIVG9crP2DYbSS 9B5P3SKEr70iokd3WQ+CCaYah+LPidn/GAJZipn4uhCWTywct1mVsz3YZ/ftCiTQrE qIKkvlTg8Pcl/XL4UTF/vAUtFR5Hf2bQTiCbSFFd3gE54FeQAVMkILpX728AtqliRP 9e4GR/CJT3k+Jc+rLFHTS9efO5Exl1wE+5HVjEfsZQBkSR7kbXAmF71M2tvjQui4IF S6ag1cun9+W4Xim0JhLSIlJgXd4VVCduvxBVUGsqrgxZsPOvLnnwFdNX8U6/QzpZig 6wlgRknzBcAQg== Date: Fri, 26 Jun 2026 11:23:05 +0300 From: Mike Rapoport To: Sang-Heon Jeon Cc: Albert Ou , Andrew Morton , Andrey Ryabinin , Catalin Marinas , Huacai Chen , Muchun Song , Oscar Salvador , Palmer Dabbelt , Paul Walmsley , Will Deacon , Alexander Potapenko , Alexandre Ghiti , Andrey Konovalov , David Hildenbrand , Dmitry Vyukov , kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, loongarch@lists.linux.dev, Vincenzo Frascino , WANG Xuerui Subject: Re: [PATCH 0/6] treewide: remove unnecessary invalid range checks in memblock iteration loops Message-ID: References: <20260621145919.1453-1-ekffu200098@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260621145919.1453-1-ekffu200098@gmail.com> X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 68A224000B X-Stat-Signature: p1pmsu17n7a7nde4dbnxo6hygma5iumz X-HE-Tag: 1782462197-419357 X-HE-Meta: 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 EwWQLLtO tD77HbCx0C5NCFpfEuvU0dR4g3xc+7F6WLvdb3aHN11lglfNK+hvSzT2khlp5sZXC3CqEPsHs6VyOZiQV9lao26VefcDrLVN6v+2mGWCkq6PkvCtbhLM3vQ9drbUIrDroyL/V4Nyqao4YivIuanbZAzWCAThiIf1r4uuaD3VxMGGr8n+U1mKhR056pg1xonkNz6HRaGzXDC70N/w9Tmt0I/XyrA4sX52ELNcoPz+JHB1OwtG5xQOVQIGb3gcgWwyCWrEOttBtLoqYoisAcGQqVzDmAJb5OfHELpl9QMmpRVpZ9dsiOcPIOGnsVcMNHnxNPMn9ASNuhjBRwUk= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, Jun 21, 2026 at 11:59:10PM +0900, Sang-Heon Jeon wrote: > The memblock API guarantees that for_each_mem_range() and > for_each_mem_pfn_range() never return an invalid range, meaning start is > always less than end. > > Several memblock callers still have unnecessary invalid range checks in > their loop bodies, so remove them. > > Sang-Heon Jeon (6): > arm64: mm: remove unreachable invalid range check in > kasan_init_shadow() > LoongArch: remove unreachable invalid range check in kasan_init() > riscv: remove unreachable invalid range check in > create_linear_mapping_page_table() > riscv: remove unreachable invalid range check in kasan_init() > mm: remove unnecessary empty range check in > early_calculate_totalpages() > mm/hugetlb: remove unnecessary empty range check in > hugetlb_bootmem_set_nodes() I queued this for inclusion into memblock tree. > arch/arm64/mm/kasan_init.c | 3 --- > arch/loongarch/mm/kasan_init.c | 3 --- > arch/riscv/mm/init.c | 2 -- > arch/riscv/mm/kasan_init.c | 3 --- > mm/hugetlb.c | 3 +-- > mm/mm_init.c | 3 +-- > 6 files changed, 2 insertions(+), 15 deletions(-) > > -- > 2.43.0 > -- Sincerely yours, Mike.