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b=Mw9D1YUW3+q0P6j3HfhYcPaQKI0Cqf9jsyCvlT/VfUC7YVltuIA1kwM0rAHY/AU0d VkDB3qb/XDbkveQsvaF6x4aN0jBvMLXf2nigAomuZNZWg+RQath3r7ThyQe2iU1oIL psOz9ZneJ0JoE0gwjQ7oRUZRnV/7+FhXtMp7qBCM= Date: Wed, 9 Apr 2025 17:32:17 -0700 From: Andrew Morton To: kernel test robot Cc: "Uladzislau Rezki (Sony)" , oe-kbuild-all@lists.linux.dev, Linux Memory Management List , LKML , Christoph Hellwig , Oleksiy Avramchenko Subject: Re: [PATCH 2/3] vmalloc: Switch to for_each_vmap_node() helper Message-Id: <20250409173217.ff56242a21b4edfe9ed87e57@linux-foundation.org> In-Reply-To: <202504100130.OjlBJLkQ-lkp@intel.com> References: <20250408151549.77937-2-urezki@gmail.com> <202504100130.OjlBJLkQ-lkp@intel.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: A38BAC0007 X-Stat-Signature: jcqy7ohjta9zx7oh4hbdu8pi8jruruos X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1744245139-351445 X-HE-Meta: U2FsdGVkX1+ZKd7vFAHJH0MJutdYyz9BKqRScdt70pxPyItdlMehUr6QuIn3wB+Pb0/IidlzyiNtoRMirs9PXp5gFj72LrYs3HITtCQOJI4enGsEIYVbRWj0Im2DT/jhXUhPqhwl6nCw56aXZ/sF7qiW5gdrEz3v1269xSQ8jEa+DpTQZkOcDkYX0CY0bFMqVlsaI+2hFTajoywxu9e4Y0adY16AuTS2pDO1T2OZu97xGxvOugaRLFg6Z109s8gJYNTXvWbpsV7HNuU5afVoCK0NgY5eCDcovvvQ4pclMcW6/eSB+iwyOfSudrXtMojkqkRN8kfEkDJEle1LK13DuiK4I5cylIeNos95e0SzwpI1YKUaZZ8/TReq0mTh/W/SzKr08Ox9fsePVT3EWzz+jvNGizzobXCvIubF3lfStAiDbAcvFwZwmEM6B+HxHOt4fJRGpvthMiglAH6gqCYp8j9aE0Hs0JK6gHh0DdjUsHoNkMUi76A1VXoGlkEXk55r1jLsmeeVt0/gCdNTbgtbBpA+o7RMAVwUFb0eovsUoMG1TITaUn26hKNKmQg4jurIX21zy1EeM0gQwhk4eXzgHYoNL812iK8tb1byP1nqb8X5eu/mkGosLg8ovP+hceTaANQx/aX0vGcN1QCNTh2Rh4QVfS9Q77Ecw7ITBIey5U80UMsf86mKATDyW3Az3xw029ZdbKDq/VmD6dhdPfKzk/XluNzlgavx/rcOwyapIRSRIi1IWfYPf6HnqxNBEgpJfvsRwa3zkr0pThcBlAYkte/AxbviKOG4G/iG90GNqbKq8AGq/sZYVxQCy4QFCXjUXHBAo6iXmlitGJwcpDLmVQwmb4flvhbGksmhVbwiegBuILp5PkYkQmCN0LnsYWPRP1VfcB8gPRe9l2czMGQKYAOnPgoe6uZ1e707yhFjoJ+p4rIOOknH8uOFlM34A1QBn1D8HC7mJJBKiiaeysn z+8EWm5t m5B7J+ebl9ckfwVuI2+y6hCoYNZ8zIFUK38Bwu/MZGfdLI2hxjmKBN9a71ItNgKaV2kWXdd7DEoqUtVFgioh3OK7N/5JcpyDSuRQNqxPte9HWABhjkxT/6KqN8ezrsudNKeggdPDwcDmvFxBb5t8m+IrYb+lM3ZDWV/4GJRWVH9P5SMqweWFxgQQgTGjVBzvumaqC1TR7i1fC0H3qvA6JKBrzsFHmD1zgqNMjM2LRuy+JlRjpo6kt6KA0M3S0uJojkqM5U1La6WTrEOmatv2TDlq5qjeKAh07+6T+NCpFhQQ5lcnElyEA3ZPyHD/A4atoY4zqtN6KZZdhMs8o1nF3fZGtmQ== 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 Thu, 10 Apr 2025 01:39:24 +0800 kernel test robot wrote: > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-kbuild-all/202504100130.OjlBJLkQ-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > mm/vmalloc.c: In function 'vmap_init_nodes': > >> mm/vmalloc.c:5087:9: warning: unused variable 'n' [-Wunused-variable] > int i, n; > ^ Thanks, I added --- a/mm/vmalloc.c~vmalloc-switch-to-for_each_vmap_node-helper-fix +++ a/mm/vmalloc.c @@ -5084,7 +5084,7 @@ static void __init vmap_init_free_space( static void vmap_init_nodes(void) { struct vmap_node *vn; - int i, n; + int i; #if BITS_PER_LONG == 64 /* @@ -5101,7 +5101,7 @@ static void vmap_init_nodes(void) * set of cores. Therefore a per-domain purging is supposed to * be added as well as a per-domain balancing. */ - n = clamp_t(unsigned int, num_possible_cpus(), 1, 128); + int n = clamp_t(unsigned int, num_possible_cpus(), 1, 128); if (n > 1) { vn = kmalloc_array(n, sizeof(*vn), GFP_NOWAIT | __GFP_NOWARN); _