From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [patch] drm/i915: fix a read size argument Date: Thu, 13 Oct 2016 15:13:11 +0300 Message-ID: <87zim8wip4.fsf@intel.com> References: <20161013085508.GJ16198@mwanda> <57FF5380.1080704@bfs.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <57FF5380.1080704@bfs.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: wharms@bfs.de, Dan Carpenter Cc: intel-gfx@lists.freedesktop.org, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, drm-intel-fixes@lists.freedesktop.org, Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCAxMyBPY3QgMjAxNiwgd2FsdGVyIGhhcm1zIDx3aGFybXNAYmZzLmRlPiB3cm90ZToK PiBBbSAxMy4xMC4yMDE2IDEwOjU1LCBzY2hyaWViIERhbiBDYXJwZW50ZXI6Cj4+IFdlIHdhbnQg dG8gcmVhZCAzIGJ5dGVzIGhlcmUsIGJ1dCBiZWNhdXNlIHRoZSBwYXJlbnRoZXNpcyBhcmUgaW4g dGhlCj4+IHdyb25nIHBsYWNlIHdlIGluc3RlYWQgcmVhZDoKPj4gCj4+IAlzaXplb2YoaW50ZWxf ZHAtPmVkcF9kcGNkKSA9PSBzaXplb2YoaW50ZWxfZHAtPmVkcF9kcGNkKQo+PiAKPj4gd2hpY2gg aXMgb25lIGJ5dGUuCj4+IAo+PiBGaXhlczogZmU1YTY2ZjkxYzg4ICgiZHJtL2k5MTU6IFJlYWQg UFNSIGNhcHMvaW50ZXJtZWRpYXRlIGZyZXFzL2V0Yy4gb25seSBvbmNlIG9uIGVEUCIpCj4+IFNp Z25lZC1vZmYtYnk6IERhbiBDYXJwZW50ZXIgPGRhbi5jYXJwZW50ZXJAb3JhY2xlLmNvbT4KCkRh biwgZ29vZCBjYXRjaCwgdGhhbmsgeW91LiBMdWNraWx5IHdlIG9ubHkgcmVhbGx5IHVzZSB0aGUg Zmlyc3QgYnl0ZQpjdXJyZW50bHkuLi4KCkNjOiA8ZHJtLWludGVsLWZpeGVzQGxpc3RzLmZyZWVk ZXNrdG9wLm9yZz4KCj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9k cC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+PiBpbmRleCAxNGEzY2YwLi5l ZThhYTk1IDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jCj4+ ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPj4gQEAgLTM1NTEsOCArMzU1 MSw4IEBAIGludGVsX2VkcF9pbml0X2RwY2Qoc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKPj4g IAkvKiBSZWFkIHRoZSBlRFAgRGlzcGxheSBjb250cm9sIGNhcGFiaWxpdGllcyByZWdpc3RlcnMg Ki8KPj4gIAlpZiAoKGludGVsX2RwLT5kcGNkW0RQX0VEUF9DT05GSUdVUkFUSU9OX0NBUF0gJiBE UF9EUENEX0RJU1BMQVlfQ09OVFJPTF9DQVBBQkxFKSAmJgo+PiAgCSAgICBkcm1fZHBfZHBjZF9y ZWFkKCZpbnRlbF9kcC0+YXV4LCBEUF9FRFBfRFBDRF9SRVYsCj4+IC0JCQkgICAgIGludGVsX2Rw LT5lZHBfZHBjZCwgc2l6ZW9mKGludGVsX2RwLT5lZHBfZHBjZCkgPT0KPj4gLQkJCSAgICAgc2l6 ZW9mKGludGVsX2RwLT5lZHBfZHBjZCkpKQo+PiArCQkJICAgICBpbnRlbF9kcC0+ZWRwX2RwY2Qs IHNpemVvZihpbnRlbF9kcC0+ZWRwX2RwY2QpKSA9PQo+PiArCQkJICAgICBzaXplb2YoaW50ZWxf ZHAtPmVkcF9kcGNkKSkKPgo+Cj4KPiBwZXJoYXBzIHdlIGNhbiBtb3JwaCB0aGF0IGludG8gc29t ZXRoaW5nIG1vcmUgcmVhZGFibGUgPyBJIHdvdWxkIHN1Z2dlc3Q6Cj4KPgo+IGlmIChpbnRlbF9k cC0+ZHBjZFtEUF9FRFBfQ09ORklHVVJBVElPTl9DQVBdICYgRFBfRFBDRF9ESVNQTEFZX0NPTlRS T0xfQ0FQQUJMRSkKPiAgIHsKPiAgICAgc2l6ZV90IHNpemU9c2l6ZW9mKGludGVsX2RwLT5lZHBf ZHBjZCk7IC8qID09IEVEUF9ESVNQTEFZX0NUTF9DQVBfU0laRSAqLwo+ICAgICBpbnQgcmV0OwkK Pgo+ICAgICByZXQ9ZHJtX2RwX2RwY2RfcmVhZCgmaW50ZWxfZHAtPmF1eCwgRFBfRURQX0RQQ0Rf UkVWLGludGVsX2RwLT5lZHBfZHBjZCxzaXplKTsJCj4KPiAgICAgaWYgKHJldCAhPSBzaXplICkK PiAgICAgICAgIC4uLi4uLgo+Cj4gIH0KPgo+IHRoaXMgd2F5IGl0IGltcHJvdmVzIHJlYWRhYmls aXR5IGFuZCByZWR1Y2VzIGxpbmUgbGVuZ3RoLgoKTm90IGNvbnZpbmNlZCwgbGV0J3MganVzdCB0 YWtlIHRoZSBzaW1wbGUgYnJhY2UgZml4IG5vdy4KCkJSLApKYW5pLgoKCi0tIApKYW5pIE5pa3Vs YSwgSW50ZWwgT3BlbiBTb3VyY2UgVGVjaG5vbG9neSBDZW50ZXIKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmkt ZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3Jn L21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==