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[79.242.61.221]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a073e5c9cdsm12037251f8f.87.2025.04.28.14.21.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Apr 2025 14:21:40 -0700 (PDT) Message-ID: <7b63f0d4-b1d7-4f91-8a80-3a147aeab46a@redhat.com> Date: Mon, 28 Apr 2025 23:21:38 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] driver/base: Remove unused functions To: Donet Tom , Mike Rapoport , Oscar Salvador , Greg Kroah-Hartman , Andrew Morton , rafael@kernel.org, Danilo Krummrich Cc: Ritesh Harjani , Jonathan Cameron , Alison Schofield , Yury Norov , Dave Jiang , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <273649393600cb33ac3eec0e9a523c2d1853a47c.1745852397.git.donettom@linux.ibm.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: <273649393600cb33ac3eec0e9a523c2d1853a47c.1745852397.git.donettom@linux.ibm.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: fjIalxVBt3-zuKNYixYrdyLOSURGTx_9MfXRfx24og0_1745875301 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: A7FFB1C0006 X-Stat-Signature: xgrezxwbq5ehip5u1mcrtzxtnnp9y67x X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1745875304-628549 X-HE-Meta: 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 EHJ5ngG2 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 28.04.25 19:03, Donet Tom wrote: Nit: I'd call this patch "driver/base: remove register_mem_block_under_node_early()" And then just naturally remove get_nid_for_pfn() with it, as it is the last user and it resides in the same file. > The functions register_mem_block_under_node_early and get_nid_for_pfn > are not used, as register_memory_blocks_under_node_early is now used > to register memory blocks during early boot. Therefore, these unused > functions have been removed. > > Signed-off-by: Donet Tom > --- > drivers/base/node.c | 54 +-------------------------------------------- > 1 file changed, 1 insertion(+), 53 deletions(-) > > diff --git a/drivers/base/node.c b/drivers/base/node.c > index 4869333d366d..59ec507fc97d 100644 > --- a/drivers/base/node.c > +++ b/drivers/base/node.c > @@ -748,15 +748,6 @@ int unregister_cpu_under_node(unsigned int cpu, unsigned int nid) > } > > #ifdef CONFIG_MEMORY_HOTPLUG > -static int __ref get_nid_for_pfn(unsigned long pfn) > -{ > -#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT > - if (system_state < SYSTEM_RUNNING) > - return early_pfn_to_nid(pfn); > -#endif > - return pfn_to_nid(pfn); > -} > - > static void do_register_memory_block_under_node(int nid, > struct memory_block *mem_blk, > enum meminit_context context) > @@ -783,46 +774,6 @@ static void do_register_memory_block_under_node(int nid, > ret); > } > > -/* register memory section under specified node if it spans that node */ > -static int register_mem_block_under_node_early(struct memory_block *mem_blk, > - void *arg) > -{ > - unsigned long memory_block_pfns = memory_block_size_bytes() / PAGE_SIZE; > - unsigned long start_pfn = section_nr_to_pfn(mem_blk->start_section_nr); > - unsigned long end_pfn = start_pfn + memory_block_pfns - 1; > - int nid = *(int *)arg; > - unsigned long pfn; > - > - for (pfn = start_pfn; pfn <= end_pfn; pfn++) { > - int page_nid; > - > - /* > - * memory block could have several absent sections from start. > - * skip pfn range from absent section > - */ > - if (!pfn_in_present_section(pfn)) { > - pfn = round_down(pfn + PAGES_PER_SECTION, > - PAGES_PER_SECTION) - 1; > - continue; > - } > - > - /* > - * We need to check if page belongs to nid only at the boot > - * case because node's ranges can be interleaved. > - */ > - page_nid = get_nid_for_pfn(pfn); > - if (page_nid < 0) > - continue; > - if (page_nid != nid) > - continue; > - > - do_register_memory_block_under_node(nid, mem_blk, MEMINIT_EARLY); > - return 0; > - } > - /* mem section does not span the specified node */ > - return 0; > -} > - > /* > * During hotplug we know that all pages in the memory block belong to the same > * node. > @@ -895,10 +846,7 @@ void register_memory_blocks_under_node(int nid, unsigned long start_pfn, > { > walk_memory_blocks_func_t func; > > - if (context == MEMINIT_HOTPLUG) > - func = register_mem_block_under_node_hotplug; > - else > - func = register_mem_block_under_node_early; > + func = register_mem_block_under_node_hotplug; > > walk_memory_blocks(PFN_PHYS(start_pfn), PFN_PHYS(end_pfn - start_pfn), > (void *)&nid, func); You can pass func directly here and avoid the temporary variable. Very nice! Acked-by: David Hildenbrand -- Cheers, David / dhildenb