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[24.9.64.241]) by smtp.gmail.com with ESMTPSA id r18sm10400848ioa.13.2021.08.24.07.40.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Aug 2021 07:40:35 -0700 (PDT) Subject: Re: [PATCH linux-next] testing/vm/: fix application of sizeof to pointer To: CGEL , Andrew Morton Cc: Shuah Khan , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, jing yangyang , Zeal Robot , Shuah Khan References: <20210820032430.12948-1-jing.yangyang@zte.com.cn> From: Shuah Khan Message-ID: <76e5e569-0c43-241d-bdfa-5a8da79574b8@linuxfoundation.org> Date: Tue, 24 Aug 2021 08:40:34 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <20210820032430.12948-1-jing.yangyang@zte.com.cn> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Authentication-Results: imf16.hostedemail.com; dkim=pass header.d=linuxfoundation.org header.s=google header.b=C0Wa2AmY; spf=pass (imf16.hostedemail.com: domain of skhan@linuxfoundation.org designates 209.85.166.54 as permitted sender) smtp.mailfrom=skhan@linuxfoundation.org; dmarc=pass (policy=none) header.from=linuxfoundation.org X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 813C5F00008E X-Stat-Signature: ce8og8ghcf5f6cdwm1dgnzir7yhyt5ai X-HE-Tag: 1629816036-961113 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: On 8/19/21 9:24 PM, CGEL wrote: > From: jing yangyang > > sizeof when applied to a pointer typed expression gives the size of the > pointer. > > ./tools/testing/selftests/vm/split_huge_page_test.c:344:36-42: ERROR application > of sizeof to pointer > > This issue was detected with the help of Coccinelle. > > Reported-by: Zeal Robot > Signed-off-by: jing yangyang > --- > tools/testing/selftests/vm/split_huge_page_test.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/vm/split_huge_page_test.c b/tools/testing/selftests/vm/split_huge_page_test.c > index 1af16d2..54bf57f 100644 > --- a/tools/testing/selftests/vm/split_huge_page_test.c > +++ b/tools/testing/selftests/vm/split_huge_page_test.c > @@ -341,7 +341,7 @@ void split_file_backed_thp(void) > } > > /* write something to the file, so a file-backed THP can be allocated */ > - num_written = write(fd, tmpfs_loc, sizeof(tmpfs_loc)); > + num_written = write(fd, tmpfs_loc, sizeof(*tmpfs_loc)); > close(fd); > > if (num_written < 1) { > We can't accept this patch. The from and Signed-off-by don't match. thanks, -- Shuah