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b=LOudoCQ2yzrFsR20h1+2GJdInQI2/pGgwKvPBAnjZYSVVjppVdsEx82SbYwi2n0Cz zWMCljlm2Fc5l4bKyMuF3+VzWEn7hI+QgsMUYqpD70WaqbZr84birjXKCbEv9BoEy8 1wZgFi07AJyt3qAMBxsbsyl9XewLIrT+rnXHWKn0qjxXWfQoVzhN5XIP9RDY3m7s67 TDJoWuh2YxWbwt7AldAX1T2qesbORBlFRrN5Z9lOuzNUJ6x7lIkprTno9FDnRBYiKU sx8V2QZ5zWjOCgYNfgQwbaq0oAuUxeeSe6H4LiS/IQxC1WdWAK20acG/ptX36dqAp/ nI4ZZdHXEDcSQ== Message-ID: Date: Tue, 11 Aug 2026 09:16:34 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/cma: fix stray newline in auto-generated CMA area name To: Ivy Lopez , akpm@linux-foundation.org Cc: ljs@kernel.org, liam@infradead.org, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260811003441.63725-1-skunkolee@gmail.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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 B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <20260811003441.63725-1-skunkolee@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: EA05E20005 X-Rspam-User: X-Stat-Signature: 6gbypzw5y683fj3c4y5uc4choe1dtkem X-HE-Tag: 1786432599-974409 X-HE-Meta: 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 T65X1hCB yjBgYD7i6zhaloBMOllpRYPtZy1P3WICBmXN2qQJv8F3lGOycBFaI3z+fespZ67Hulcae7m1PoDmhzPOu4jzx+49NDsGwiZqEYv2qt511OG+BaOTog49HJSGZe7BdsC9HPY/THc8uy4/d21Ne/xfUufTUhUjYIs+E15ObvU6iJLa6n70YXRKefghaheYgDrIrFt85DmLnRjDkyHdldy65PFa29t3+fhafMh0tA4eAXwBooW7OkaiaEohUICDZ6Skru5SfYOce79ziAxIn34dw9ex37xD0cGcaNvjF9RS7hv2YpP8= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/11/26 02:34, Ivy Lopez wrote: > When no explicit name is provided, cma_new_area() falls back to > generating one via snprintf(), but the format string contains an > embedded newline: "cma%d\n". This name is used as-is for the area's > sysfs entry (cma_sysfs.c) and debugfs directory (cma_debug.c), so > every auto-named CMA area ends up with a newline embedded in its > sysfs/debugfs name. > > Drop the stray newline and the extra space after the size argument. > > Signed-off-by: Ivy Lopez > --- > mm/cma.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/mm/cma.c b/mm/cma.c > index a13ce4999b39..092cbb8f27ec 100644 > --- a/mm/cma.c > +++ b/mm/cma.c > @@ -240,7 +240,7 @@ static int __init cma_new_area(const char *name, phys_addr_t size, > if (name) > strscpy(cma->name, name); > else > - snprintf(cma->name, CMA_MAX_NAME, "cma%d\n", cma_area_count); > + snprintf(cma->name, CMA_MAX_NAME, "cma%d", cma_area_count); > > cma->available_count = cma->count = size >> PAGE_SHIFT; > cma->order_per_bit = order_per_bit; Hi, please see https://lore.kernel.org/r/20260810093215.91419-1-hongfu.li@linux.dev -- Cheers, David