From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: Re: [PATCH] drm/i915/pmu: Fix enable count array size and bounds checking Date: Tue, 05 Feb 2019 10:37:43 +0000 Message-ID: <154936305874.31771.1538448643399145177@skylake-alporthouse-com> References: <20190205102905.22716-1-tvrtko.ursulin@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id CCD576E6D5 for ; Tue, 5 Feb 2019 10:38:13 +0000 (UTC) In-Reply-To: <20190205102905.22716-1-tvrtko.ursulin@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Intel-gfx@lists.freedesktop.org, Tvrtko Ursulin List-Id: intel-gfx@lists.freedesktop.org UXVvdGluZyBUdnJ0a28gVXJzdWxpbiAoMjAxOS0wMi0wNSAxMDoyOTowNSkKPiBGcm9tOiBUdnJ0 a28gVXJzdWxpbiA8dHZydGtvLnVyc3VsaW5AaW50ZWwuY29tPgo+IAo+IEVuYWJsZSBjb3VudCBh cnJheSBpcyBzdXBwb3NlZCB0byBoYXZlIG9uZSBjb3VudGVyIGZvciBlYWNoIHBvc3NpYmxlCj4g ZW5naW5lIHNhbXBsZXIuIEFzIHN1Y2gsIGFycmF5IHNpemluZyBhbmQgYm91bmRzIGNoZWNraW5n IGlzIG5vdCBjb3JyZWN0Cj4gYW5kIHdvdWxkIGJsb3cgdXAgdGhlIGFzc2VydHMgaWYgbW9yZSBz YW1wbGVycyB3ZXJlIGFkZGVkLgo+IAo+IE5vIGlsbC1lZmZlY3QgaW4gdGhlIGN1cnJlbnQgY29k ZSBiYXNlIGJ1dCBsZXRzIGZpeCBpdCBmb3IgY29ycmVjdG5lc3MuCj4gCj4gQXQgdGhlIHNhbWUg dGltZSB0aWR5IHRoZSBhc3NlcnQgZm9yIHJlYWRhYmlsaXR5IGFuZCByb2J1c3RuZXNzLgo+IAo+ IFNpZ25lZC1vZmYtYnk6IFR2cnRrbyBVcnN1bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+ Cj4gRml4ZXM6IGI0NmEzM2UyNzFlZCAoImRybS9pOTE1L3BtdTogRXhwb3NlIGEgUE1VIGludGVy ZmFjZSBmb3IgcGVyZiBxdWVyaWVzIikKPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkx NV9wbXUuYyAgICAgICAgIHwgMjIgKysrKysrKysrKysrKysrLS0tLS0tLQo+ICBkcml2ZXJzL2dw dS9kcm0vaTkxNS9pOTE1X3BtdS5oICAgICAgICAgfCAgMiArKwo+ICBkcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9yaW5nYnVmZmVyLmggfCAgOSArKysrKy0tLS0KPiAgMyBmaWxlcyBjaGFuZ2Vk LCAyMiBpbnNlcnRpb25zKCspLCAxMSBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJp dmVycy9ncHUvZHJtL2k5MTUvaTkxNV9wbXUuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf cG11LmMKPiBpbmRleCBiMWNiMmQzY2FlMTYuLjQ0YTE0ZWYxMDM1YyAxMDA2NDQKPiAtLS0gYS9k cml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3BtdS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaTkxNV9wbXUuYwo+IEBAIC01OTksNyArNTk5LDggQEAgc3RhdGljIHZvaWQgaTkxNV9wbXVf ZW5hYmxlKHN0cnVjdCBwZXJmX2V2ZW50ICpldmVudCkKPiAgICAgICAgICAqIFVwZGF0ZSB0aGUg Yml0bWFzayBvZiBlbmFibGVkIGV2ZW50cyBhbmQgaW5jcmVtZW50Cj4gICAgICAgICAgKiB0aGUg ZXZlbnQgcmVmZXJlbmNlIGNvdW50ZXIuCj4gICAgICAgICAgKi8KPiAtICAgICAgIEdFTV9CVUdf T04oYml0ID49IEk5MTVfUE1VX01BU0tfQklUUyk7Cj4gKyAgICAgICBCVUlMRF9CVUdfT04oQVJS QVlfU0laRShpOTE1LT5wbXUuZW5hYmxlX2NvdW50KSAhPSBJOTE1X1BNVV9NQVNLX0JJVFMpOwo+ ICsgICAgICAgR0VNX0JVR19PTihiaXQgPj0gQVJSQVlfU0laRShpOTE1LT5wbXUuZW5hYmxlX2Nv dW50KSk7Cj4gICAgICAgICBHRU1fQlVHX09OKGk5MTUtPnBtdS5lbmFibGVfY291bnRbYml0XSA9 PSB+MCk7CglHRU1fQlVHX09OKGk5MTUtPnBtdS5lbmFibGVfY291bnRbYml0XSA9PSB+MCk7IC8q ICFvdmVyZmxvdyEgKi8KClRvb2sgbWUgYSBtb21lbnQgdG8gcmVhbGlzZSB3aGF0IHlvdSB3ZXJl IGNoZWNraW5nLiBJIHdhcyB0aGlua2luZwphcm91bmQgdGhlIGxpbmVzIG9mIGFuIGVuYWJsZSBt YXNrIGJlZm9yZSBJIHNhdyB0aGUgY291bnQuCgo+ICAgICAgICAgaTkxNS0+cG11LmVuYWJsZSB8 PSBCSVRfVUxMKGJpdCk7Cj4gICAgICAgICBpOTE1LT5wbXUuZW5hYmxlX2NvdW50W2JpdF0rKzsK PiBAQCAtNjIwLDExICs2MjEsMTYgQEAgc3RhdGljIHZvaWQgaTkxNV9wbXVfZW5hYmxlKHN0cnVj dCBwZXJmX2V2ZW50ICpldmVudCkKPiAgICAgICAgICAgICAgICAgZW5naW5lID0gaW50ZWxfZW5n aW5lX2xvb2t1cF91c2VyKGk5MTUsCj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICBlbmdpbmVfZXZlbnRfY2xhc3MoZXZlbnQpLAo+ICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgZW5naW5lX2V2ZW50X2luc3Rh bmNlKGV2ZW50KSk7Cj4gLSAgICAgICAgICAgICAgIEdFTV9CVUdfT04oIWVuZ2luZSk7Cj4gLSAg ICAgICAgICAgICAgIGVuZ2luZS0+cG11LmVuYWJsZSB8PSBCSVQoc2FtcGxlKTsKPiAgCj4gLSAg ICAgICAgICAgICAgIEdFTV9CVUdfT04oc2FtcGxlID49IEk5MTVfUE1VX1NBTVBMRV9CSVRTKTsK PiArICAgICAgICAgICAgICAgQlVJTERfQlVHX09OKEFSUkFZX1NJWkUoZW5naW5lLT5wbXUuZW5h YmxlX2NvdW50KSAhPQo+ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAgSTkxNV9FTkdJTkVf U0FNUExFX0NPVU5UIHx8Cj4gKyAgICAgICAgICAgICAgICAgICAgICAgICAgICBBUlJBWV9TSVpF KGVuZ2luZS0+cG11LnNhbXBsZSkgIT0KPiArICAgICAgICAgICAgICAgICAgICAgICAgICAgIEk5 MTVfRU5HSU5FX1NBTVBMRV9DT1VOVCk7CgpVZ2gsIGEgYml0IG9mIGEgbW91dGhmdWwuIFNwbGl0 IGludG8gdHdvIGF0IGxlYXN0IGl0IGlzIGxlc3Mgb2YgYQp0b3dlcmluZyBjbGlmZiAoYW5kIHdp bGwgYmUgZWFzaWVyIHRvIHVuZGVyc3RhbmQgc2hvdWxkIGl0IGV2ZXIgZmlyZSkuCgpDYW4gYXBw bHkgdGhlIHNhbWUgcmF0aW9uYWxlIHRvIHNwbGl0IHVwIHRoZSBHRU1fQlVHX09OLgoKUmV2aWV3 ZWQtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgotQ2hyaXMKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1h aWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMu ZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==