From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville Syrjala Subject: [PATCH 2/5] drm/dp/mst: Validate REMOTE_I2C_READ harder Date: Fri, 28 Sep 2018 21:04:00 +0300 Message-ID: <20180928180403.22499-2-ville.syrjala@linux.intel.com> References: <20180928180403.22499-1-ville.syrjala@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180928180403.22499-1-ville.syrjala@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: dri-devel@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org RnJvbTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KCk1h a2Ugc3VyZSBpMmMgbXNncyB3ZSdyZSBhc2tlZCB0byB0cmFuc2ZlciBjb25mb3JtIHRvIHRoZQpy ZXF1aXJlbWVudHMgb2YgUkVNT1RFX0kyQ19SRUFELiBXZSB3ZXJlIG9ubHkgY2hlY2tpbmcgdGhh dCB0aGUKbGFzdCBtZXNzYWdlIGlzIGEgcmVhZCwgYnV0IHdlIG11c3QgYWxzbyBjaGVjayB0aGF0 IHRoZSBwcmVjZWRpbmcKbWVzc2FnZXMgYXJlIGFsbCB3cml0ZXMuIEFsc28gY2hlY2sgdGhhdCB0 aGUgbGVuZ3RoIG9mIGVhY2gKbWVzc2FnZSBpc24ndCB0b28gbG9uZy4KClNpZ25lZC1vZmYtYnk6 IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Ci0tLQogZHJp dmVycy9ncHUvZHJtL2RybV9kcF9tc3RfdG9wb2xvZ3kuYyB8IDI1ICsrKysrKysrKysrKysrKysr Ky0tLS0tLS0KIDEgZmlsZSBjaGFuZ2VkLCAxOCBpbnNlcnRpb25zKCspLCA3IGRlbGV0aW9ucygt KQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMgYi9k cml2ZXJzL2dwdS9kcm0vZHJtX2RwX21zdF90b3BvbG9neS5jCmluZGV4IDNiNDAwZWFiMThhMi4u YTA2NTJmYzE2NmM2IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vZHJtX2RwX21zdF90b3Bv bG9neS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMKQEAgLTMy MzksNiArMzIzOSwyMyBAQCB2b2lkIGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyX2Rlc3Ryb3koc3Ry dWN0IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyICptZ3IpCiB9CiBFWFBPUlRfU1lNQk9MKGRybV9k cF9tc3RfdG9wb2xvZ3lfbWdyX2Rlc3Ryb3kpOwogCitzdGF0aWMgYm9vbCByZW1vdGVfaTJjX3Jl YWRfb2soY29uc3Qgc3RydWN0IGkyY19tc2cgbXNnc1tdLCBpbnQgbnVtKQoreworCWludCBpOwor CisJaWYgKG51bSAtIDEgPiBEUF9SRU1PVEVfSTJDX1JFQURfTUFYX1RSQU5TQUNUSU9OUykKKwkJ cmV0dXJuIGZhbHNlOworCisJZm9yIChpID0gMDsgaSA8IG51bSAtIDE7IGkrKykgeworCQlpZiAo bXNnc1tpXS5mbGFncyAmIEkyQ19NX1JEIHx8CisJCSAgICBtc2dzW2ldLmxlbiA+IDB4ZmYpCisJ CQlyZXR1cm4gZmFsc2U7CisJfQorCisJcmV0dXJuIG1zZ3NbbnVtIC0gMV0uZmxhZ3MgJiBJMkNf TV9SRCAmJgorCQltc2dzW251bSAtIDFdLmxlbiA8PSAweGZmOworfQorCiAvKiBJMkMgZGV2aWNl ICovCiBzdGF0aWMgaW50IGRybV9kcF9tc3RfaTJjX3hmZXIoc3RydWN0IGkyY19hZGFwdGVyICph ZGFwdGVyLCBzdHJ1Y3QgaTJjX21zZyAqbXNncywKIAkJCSAgICAgICBpbnQgbnVtKQpAQCAtMzI0 OCw3ICszMjY1LDYgQEAgc3RhdGljIGludCBkcm1fZHBfbXN0X2kyY194ZmVyKHN0cnVjdCBpMmNf YWRhcHRlciAqYWRhcHRlciwgc3RydWN0IGkyY19tc2cgKm1zZ3MKIAlzdHJ1Y3QgZHJtX2RwX21z dF9icmFuY2ggKm1zdGI7CiAJc3RydWN0IGRybV9kcF9tc3RfdG9wb2xvZ3lfbWdyICptZ3IgPSBw b3J0LT5tZ3I7CiAJdW5zaWduZWQgaW50IGk7Ci0JYm9vbCByZWFkaW5nID0gZmFsc2U7CiAJc3Ry dWN0IGRybV9kcF9zaWRlYmFuZF9tc2dfcmVxX2JvZHkgbXNnOwogCXN0cnVjdCBkcm1fZHBfc2lk ZWJhbmRfbXNnX3R4ICp0eG1zZyA9IE5VTEw7CiAJaW50IHJldDsKQEAgLTMyNTcsMTIgKzMyNzMs NyBAQCBzdGF0aWMgaW50IGRybV9kcF9tc3RfaTJjX3hmZXIoc3RydWN0IGkyY19hZGFwdGVyICph ZGFwdGVyLCBzdHJ1Y3QgaTJjX21zZyAqbXNncwogCWlmICghbXN0YikKIAkJcmV0dXJuIC1FUkVN T1RFSU87CiAKLQkvKiBjb25zdHJ1Y3QgaTJjIG1zZyAqLwotCS8qIHNlZSBpZiBsYXN0IG1zZyBp cyBhIHJlYWQgKi8KLQlpZiAobXNnc1tudW0gLSAxXS5mbGFncyAmIEkyQ19NX1JEKQotCQlyZWFk aW5nID0gdHJ1ZTsKLQotCWlmICghcmVhZGluZyB8fCAobnVtIC0gMSA+IERQX1JFTU9URV9JMkNf UkVBRF9NQVhfVFJBTlNBQ1RJT05TKSkgeworCWlmICghcmVtb3RlX2kyY19yZWFkX29rKG1zZ3Ms IG51bSkpIHsKIAkJRFJNX0RFQlVHX0tNUygiVW5zdXBwb3J0ZWQgSTJDIHRyYW5zYWN0aW9uIGZv ciBNU1QgZGV2aWNlXG4iKTsKIAkJcmV0ID0gLUVJTzsKIAkJZ290byBvdXQ7Ci0tIAoyLjE2LjQK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdm eCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xp c3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=