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[66.187.233.206]) by smtp.gmail.com with ESMTPSA id 47sm41640083qtw.90.2019.08.01.09.20.35 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Aug 2019 09:20:36 -0700 (PDT) Message-ID: <1564676434.11067.46.camel@lca.pw> Subject: Re: [PATCH v2] arm64/mm: fix variable 'tag' set but not used From: Qian Cai To: Matthew Wilcox Date: Thu, 01 Aug 2019 12:20:34 -0400 In-Reply-To: <20190801160013.GK4700@bombadil.infradead.org> References: <1564670825-4050-1-git-send-email-cai@lca.pw> <20190801160013.GK4700@bombadil.infradead.org> X-Mailer: Evolution 3.22.6 (3.22.6-10.el7) Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190801_092038_506257_2CFA4D3C X-CRM114-Status: GOOD ( 11.91 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: catalin.marinas@arm.com, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, glider@google.com, linux-arm-kernel@lists.infradead.org, andreyknvl@google.com, aryabinin@virtuozzo.com, will@kernel.org, dvyukov@google.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCAyMDE5LTA4LTAxIGF0IDA5OjAwIC0wNzAwLCBNYXR0aGV3IFdpbGNveCB3cm90ZToK PiBPbiBUaHUsIEF1ZyAwMSwgMjAxOSBhdCAxMDo0NzowNUFNIC0wNDAwLCBRaWFuIENhaSB3cm90 ZToKPiAKPiBHaXZlbiB0aGlzOgo+IAo+ID4gLSNkZWZpbmUgX190YWdfc2V0KGFkZHIsIHRhZykJ KGFkZHIpCj4gPiArc3RhdGljIGlubGluZSBjb25zdCB2b2lkICpfX3RhZ19zZXQoY29uc3Qgdm9p ZCAqYWRkciwgdTggdGFnKQo+ID4gK3sKPiA+ICsJcmV0dXJuIGFkZHI7Cj4gPiArfQo+ID4gKwo+ ID4gwqAjZGVmaW5lIF9fdGFnX3Jlc2V0KGFkZHIpCShhZGRyKQo+ID4gwqAjZGVmaW5lIF9fdGFn X2dldChhZGRyKQkJMAo+ID4gwqAjZW5kaWYKPiA+IEBAIC0zMDEsOCArMzA1LDggQEAgc3RhdGlj IGlubGluZSB2b2lkICpwaHlzX3RvX3ZpcnQocGh5c19hZGRyX3QgeCkKPiA+IMKgI2RlZmluZSBw YWdlX3RvX3ZpcnQocGFnZSkJKHsJCQkJCQo+ID4gXAo+ID4gwqAJdW5zaWduZWQgbG9uZyBfX2Fk ZHIgPQkJCQkJCQo+ID4gXAo+ID4gwqAJCSgoX19wYWdlX3RvX3ZvZmYocGFnZSkpIHwgUEFHRV9P RkZTRVQpOwkJCQo+ID4gXAo+ID4gLQl1bnNpZ25lZCBsb25nIF9fYWRkcl90YWcgPQkJCQkJXAo+ ID4gLQkJwqBfX3RhZ19zZXQoX19hZGRyLCBwYWdlX2thc2FuX3RhZyhwYWdlKSk7CQlcCj4gPiAr CWNvbnN0IHZvaWQgKl9fYWRkcl90YWcgPQkJCQkJXAo+ID4gKwkJX190YWdfc2V0KCh2b2lkICop X19hZGRyLCBwYWdlX2thc2FuX3RhZyhwYWdlKSk7CVwKPiA+IMKgCSgodm9pZCAqKV9fYWRkcl90 YWcpOwkJCQkJCQo+ID4gXAo+ID4gwqB9KQo+IAo+IENhbid0IHlvdSBzaW1wbGlmeSB0aGF0IG1h Y3JvIHRvOgo+IAo+IMKgI2RlZmluZSBwYWdlX3RvX3ZpcnQocGFnZSkJKHsJCQkJCVwKPiDCoAl1 bnNpZ25lZCBsb25nIF9fYWRkciA9CQkJCQkJCj4gXAo+IMKgCQkoKF9fcGFnZV90b192b2ZmKHBh Z2UpKSB8IFBBR0VfT0ZGU0VUKTsJCQkKPiBcCj4gLQl1bnNpZ25lZCBsb25nIF9fYWRkcl90YWcg PQkJCQkJXAo+IC0JCcKgX190YWdfc2V0KF9fYWRkciwgcGFnZV9rYXNhbl90YWcocGFnZSkpOwkJ XAo+IC0JKCh2b2lkICopX19hZGRyX3RhZyk7CQkJCQkJCj4gXAo+ICsJX190YWdfc2V0KCh2b2lk ICopX19hZGRyLCBwYWdlX2thc2FuX3RhZyhwYWdlKSk7CQlcCj4gwqB9KQoKSXQgc3RpbGwgbmVl ZCBhIGNhc3Qgb3IgbG93bWVtX3BhZ2VfYWRkcmVzcygpIHdpbGwgY29tcGxhaW4gb2YgYSBkaXNj YXJkZWQKImNvbnN0Ii4gSXQgbWlnaHQgYmUgYSBiaXQgaGFyZGVyIHRvIHJlYWQgd2hlbiBhZGRp bmcgYSBjYXN0IGFzIGluLAoKKCh2b2lkICopX190YWdfc2V0KCh2b2lkICopX19hZGRyLCBwYWdl X2thc2FuX3RhZyhwYWdlKSkpOwoKQnV0LCB0aGF0IGZlZWwgbGlrZSBtb3JlIG9mIGEgZm9sbG93 dXAgcGF0Y2ggZm9yIG1lIGlmIGV2ZXIgbmVlZGVkLgoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGlu dXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQu b3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=