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Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:51724) by pandora.armlinux.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lPQqO-0001pW-Ar; Thu, 25 Mar 2021 14:20:16 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1lPQqJ-000658-TU; Thu, 25 Mar 2021 14:20:11 +0000 Date: Thu, 25 Mar 2021 14:20:11 +0000 From: Russell King - ARM Linux admin To: Liu Xiang Cc: Liu Xiang , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, liuxiang_1999@126.com Subject: Re: [PATCH] ARM: fix smp_processor_id() in preemptible warning in harden_branch_predictor() Message-ID: <20210325142011.GN1463@shell.armlinux.org.uk> References: <20210325095049.6948-1-liu.xiang@zlingsmart.com> <20210325100605.GL1463@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210325_142023_790906_727E1B75 X-CRM114-Status: GOOD ( 20.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCBNYXIgMjUsIDIwMjEgYXQgMDk6MzI6MzVQTSArMDgwMCwgTGl1IFhpYW5nIHdyb3Rl Ogo+IFJ1c3NlbGwgS2luZyAtIEFSTSBMaW51eCBhZG1pbiA8bGludXhAYXJtbGludXgub3JnLnVr PiDkuo4yMDIx5bm0M+aciDI15pel5ZGo5ZubIOS4i+WNiDY6MDblhpnpgZPvvJoKPiA+Cj4gPiBP biBUaHUsIE1hciAyNSwgMjAyMSBhdCAwNTo1MDo0OVBNICswODAwLCBMaXUgWGlhbmcgd3JvdGU6 Cj4gPiA+IFdoZW4gQ09ORklHX0hBUkRFTl9CUkFOQ0hfUFJFRElDVE9SIGlzIHNlbGVjdGVkIGFu ZCB1c2VyIGFib3J0cyBvY2N1ciwKPiA+ID4gdGhlcmUgaXMgYSB3YXJuaW5nOgo+ID4gPgo+ID4g PiBCVUc6IHVzaW5nIHNtcF9wcm9jZXNzb3JfaWQoKSBpbiBwcmVlbXB0aWJsZSBbMDAwMDAwMDBd IGNvZGU6IGVycm5vdGVzdC81NzcKPiA+ID4gY2FsbGVyIGlzIF9fZG9fdXNlcl9mYXVsdC5jb25z dHByb3AuNCsweDI0LzB4ODgKPiA+ID4gQ1BVOiAxIFBJRDogNTc3IENvbW06IGVycm5vdGVzdCBO b3QgdGFpbnRlZCA0LjE0LjE4OC1ydDg3LWZtc2gtMDAwMDQtZzU4MDU1ODc3YSAjMQo+ID4gPiBI YXJkd2FyZSBuYW1lOiBGTVNIIFBTT0MgUGxhdGZvcm0KPiA+ID4gWzw4MDEwZDZkND5dICh1bndp bmRfYmFja3RyYWNlKSBmcm9tIFs8ODAxMGEyMjg+XSAoc2hvd19zdGFjaysweDEwLzB4MTQpCj4g PiA+IFs8ODAxMGEyMjg+XSAoc2hvd19zdGFjaykgZnJvbSBbPDgwNjk4ZjQ0Pl0gKGR1bXBfc3Rh Y2srMHg3Yy8weDk4KQo+ID4gPiBbPDgwNjk4ZjQ0Pl0gKGR1bXBfc3RhY2spIGZyb20gWzw4MDNk MTdkMD5dIChjaGVja19wcmVlbXB0aW9uX2Rpc2FibGVkKzB4YzQvMHhmYykKPiA+ID4gWzw4MDNk MTdkMD5dIChjaGVja19wcmVlbXB0aW9uX2Rpc2FibGVkKSBmcm9tIFs8ODAxMTBlYjg+XSAoX19k b191c2VyX2ZhdWx0LmNvbnN0cHJvcC40KzB4MjQvMHg4OCkKPiA+ID4gWzw4MDExMGViOD5dIChf X2RvX3VzZXJfZmF1bHQuY29uc3Rwcm9wLjQpIGZyb20gWzw4MDExMTJlND5dIChkb19wYWdlX2Zh dWx0KzB4MmRjLzB4MzEwKQo+ID4gPiBbPDgwMTExMmU0Pl0gKGRvX3BhZ2VfZmF1bHQpIGZyb20g Wzw4MDEwMTJhOD5dIChkb19EYXRhQWJvcnQrMHgzOC8weGI4KQo+ID4gPiBbPDgwMTAxMmE4Pl0g KGRvX0RhdGFBYm9ydCkgZnJvbSBbPDgwMTBiMDNjPl0gKF9fZGFidF91c3IrMHgzYy8weDQwKQo+ ID4gPiBFeGNlcHRpb24gc3RhY2soMHhiMjFkMWZiMCB0byAweGIyMWQxZmY4KQo+ID4gPiAxZmEw OiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBmZmZmZmZmNCAwMDAwMDAwMCAw MDAwMDA1NCBmZmZmZmZmNAo+ID4gPiAxZmMwOiAwMDAwMDAwMCAwMDAwMDAwMCA3ZWQ4MWNjOCA3 ZWQ4MWNhMCAwMDA3YTQ0MCAwMDAwMDAwMCAwMDAwMDAwMCAwMDAwMDAwMAo+ID4gPiAxZmUwOiAw MDAwMDAwMCA3ZWQ4MWNhMCAwMDAxMDQ5MyAwMDAxZjMzMCAyMDAzMDAxMCBmZmZmZmZmZgo+ID4K PiA+IFRoaXMgaXMgbm90IHRoZSByaWdodCBmaXggLSBwcmVlbXB0aW9uIGlzIHN1cHBvc2VkIHRv IGJlIGRpc2FibGVkIGJlZm9yZQo+ID4gdGhpcyBmdW5jdGlvbiBpcyBjYWxsZWQuIEknbSBub3Qg c3VyZSBhdCB0aGUgcHJlc2VudCB0aW1lIHdoYXQgdGhlIHJpZ2h0Cj4gPiBmaXggaXMgc3VwcG9z ZWQgdG8gYmUgYmVjYXVzZSBJJ3ZlIGZvcmdvdHRlbiBtb3N0IG9mIHRoZSBiYWNrZ3JvdW5kCj4g PiBiZWhpbmQgd2h5IHRoaXMgd2FzIHBsYWNlZCB3aGVyZSBpdCBpcy4KPiA+Cj4gPiAtLQo+ID4g Uk1LJ3MgUGF0Y2ggc3lzdGVtOiBodHRwczovL3d3dy5hcm1saW51eC5vcmcudWsvZGV2ZWxvcGVy L3BhdGNoZXMvCj4gPiBGVFRQIGlzIGhlcmUhIDQwTWJwcyBkb3duIDEwTWJwcyB1cC4gRGVjZW50 IGNvbm5lY3Rpdml0eSBhdCBsYXN0IQo+IAo+IEkgaGF2ZSB0ZXN0ZWQgd2l0aCB0aGUgY3VycmVu dCBtYWlubGluZSBrZXJuZWwsIHRoZSB3YXJuaW5nIHN0aWxsIGV4aXN0cy4KClllcywgaXQgc3Rp bGwgZXhpc3RzLCBiZWNhdXNlIGl0J3MgbmV2ZXIgYmVlbiBmaXhlZCwgYnV0IHRoZSB3YXkgeW91 IGFyZQpmaXhpbmcgaXQgaXMgbm90IGNvcnJlY3QuIFdlIGRvIG5vdCBwYXBlciBvdmVyIHdhcm5p bmdzIHdpdGggaW5jb3JyZWN0CmZpeGVzLgoKLS0gClJNSydzIFBhdGNoIHN5c3RlbTogaHR0cHM6 Ly93d3cuYXJtbGludXgub3JnLnVrL2RldmVsb3Blci9wYXRjaGVzLwpGVFRQIGlzIGhlcmUhIDQw TWJwcyBkb3duIDEwTWJwcyB1cC4gRGVjZW50IGNvbm5lY3Rpdml0eSBhdCBsYXN0IQoKX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5l bCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6 Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=