From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [stable,netdev,4.4+] lan78xx: make sure RX_ADDRL & RX_ADDRH regs are always up to date From: Paolo Pisati Message-Id: <1541609457-28725-1-git-send-email-p.pisati@gmail.com> Date: Wed, 7 Nov 2018 17:50:57 +0100 To: Woojung Huh , Microchip Linux Driver Support , netdev@vger.kernel.org, stable@vger.kernel.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org List-ID: W3BhcnRpYWwgYmFja3BvcnQgdXBzdHJlYW0gNzYwZGIyOWJkYzk3YjczZmY2MGIwOTEzMTVhZDc4 N2IxZGViNWNmNV0KClVwb24gaW52b2NhdGlvbiwgbGFuNzh4eF9pbml0X21hY19hZGRyZXNzKCkg Y2hlY2tzIHRoYXQgdGhlIG1hYyBhZGRyZXNzIHByZXNlbnQKaW4gdGhlIFJYX0FERFJMICYgUlhf QUREUkggcmVnaXN0ZXJzIGlzIGEgdmFsaWQgYWRkcmVzcywgaWYgbm90LCBpdCBmaXJzdCB0cmll cwp0byByZWFkIGEgbmV3IGFkZHJlc3MgZnJvbSBhbiBleHRlcm5hbCBlZXByb20gb3IgdGhlIG90 cCBhcmVhLCBhbmQgaW4gY2FzZSBib3RoCnJlYWQgZmFpbCAob3IgdGhlIGFkZHJlc3MgcmVhZCBi YWNrIGlzIGludmFsaWQpLCBpdCByYW5kb21seSBnZW5lcmF0ZXMgYSBuZXcKb25lLgoKVW5mb3J0 dW5hdGVseSwgZHVlIHRvIHRoZSB3YXkgdGhlIGFib3ZlIGxvZ2ljIGlzIGxhaWQgb3V0LAppZiBi b3RoIHJlYWRfZWVwcm9tKCkgYW5kIHJlYWRfb3RwKCkgZmFpbCwgYSBuZXcgbWFjIGFkZHJlc3Mg aXMgY29ycmVjdGx5CmdlbmVyYXRlZCBidXQgaXMgbmV2ZXIgd3JpdHRlbiBiYWNrIHRvIFJYX0FE RFJMICYgUlhfQUREUkgsIGxlYXZpbmcgdGhlIGNoaXAgaW4gYW4KaW5jb3Npc3RlbnQgc3RhdGUg YW5kIHdpdGggYW4gaW52YWxpZCBtYWMgYWRkcmVzcyAoZS5nLiB0aGUgbmljIGFwcGVhcnMgdG8g YmUKY29tcGxldGVseSBkZWFkLCBhbmQgZG9lc24ndCByZWNlaXZlIGFueSBwYWNrZXQsIGV0Yyk6 CgpsYW43OHh4X2luaXRfbWFjX2FkZHJlc3MoKQouLi4KaWYgKGxhbjc4eHhfcmVhZF9lZXByb20o YWRkciAuLi4pIHx8IGxhbjc4eHhfcmVhZF9vdHAoYWRkciAuLi4pKSB7CglpZiAoaXNfdmFsaWRf ZXRoZXJfYWRkcihhZGRyKSB7CgkJLy8gbm9wLi4uCgl9IGVsc2UgewoJCXJhbmRvbV9ldGhlcl9h ZGRyKGFkZHIpOwoJfQoKCS8vIGNvcnJlY3RseSB3cml0ZXMgYmFjayB0aGUgbmV3IGFkZHJlc3MK CWxhbjc4eHhfd3JpdGVfcmVnKFJYX0FERFJMLCBhZGRyIC4uLik7CglsYW43OHh4X3dyaXRlX3Jl ZyhSWF9BRERSSCwgYWRkciAuLi4pOwp9IGVsc2UgewoJLy8gWFhYIGlmIGJvdGggZWVwcm9tIGFu ZCBvdHAgcmVhZCBmYWlsLCB3ZSBsYW5kIGhlcmUgYW5kIHNraXAKCS8vIFhYWCB0aGUgUlhfQURE UkwgJiBSWF9BRERSSCB1cGRhdGUgY29tcGxldGVseQoJcmFuZG9tX2V0aGVyX2FkZHIoYWRkcik7 Cn0KClRoaXMgYnVnIHdlbnQgdW5ub3RpY2VkIGJlY2F1c2UgbGFuNzh4eF9yZWFkX290cCgpIHdh cyBidWdneSBpdHNlbGYgYW5kIHdvdWxkCm5ldmVyIGZhaWwsIHVwIHVudGlsIDRiZmMzMzggImxh bjc4eHg6IENvcnJlY3RseSBpbmRpY2F0ZSBpbnZhbGlkIE9UUCIKZml4ZWQgaXQgYW5kIGFzIGEg c2lkZSBlZmZlY3QgdW5jb3ZlcmVkIHRoaXMgYnVnLgoKNC4xOCsgaXMgZmluZSwgc2luY2UgdGhl IGJ1ZyB3YXMgaW1wbGljaXRseSBmaXhlZCBpbiA3NjBkYjI5ICJsYW43OHh4OiBSZWFkIE1BQwph ZGRyZXNzIGZyb20gRFQgaWYgcHJlc2VudCIgd2hlbiB0aGUgYWRkcmVzcyBjaGFuZ2UgbG9naWMg d2FzIHJlb3JnYW5pemVkLCBidXQKaXQncyBzdGlsbCBwcmVzZW50IGluIGFsbCBzdGFibGUgdHJl ZXMgYmVsb3cgdGhhdDogbGludXgtNC40LnksIGxpbnV4LTQuOS55LApsaW51eC00LjE0LnksIGV0 YyB1cCB0byBsaW51eC00LjE4LnkgKG5vdCBpbmNsdWRlZCkuCgpTaWduZWQtb2ZmLWJ5OiBQYW9s byBQaXNhdGkgPHAucGlzYXRpQGdtYWlsLmNvbT4KLS0tCiBkcml2ZXJzL25ldC91c2IvbGFuNzh4 eC5jIHwgMTIgKysrKystLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgNSBpbnNlcnRpb25zKCspLCA3 IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvbmV0L3VzYi9sYW43OHh4LmMgYi9k cml2ZXJzL25ldC91c2IvbGFuNzh4eC5jCmluZGV4IDUwZTJlMTBhLi4xMTRkYzU1IDEwMDY0NAot LS0gYS9kcml2ZXJzL25ldC91c2IvbGFuNzh4eC5jCisrKyBiL2RyaXZlcnMvbmV0L3VzYi9sYW43 OHh4LmMKQEAgLTE2NjAsMTMgKzE2NjAsNiBAQCBzdGF0aWMgdm9pZCBsYW43OHh4X2luaXRfbWFj X2FkZHJlc3Moc3RydWN0IGxhbjc4eHhfbmV0ICpkZXYpCiAJCQkJbmV0aWZfZGJnKGRldiwgaWZ1 cCwgZGV2LT5uZXQsCiAJCQkJCSAgIk1BQyBhZGRyZXNzIHNldCB0byByYW5kb20gYWRkciIpOwog CQkJfQotCi0JCQlhZGRyX2xvID0gYWRkclswXSB8IChhZGRyWzFdIDw8IDgpIHwKLQkJCQkgIChh ZGRyWzJdIDw8IDE2KSB8IChhZGRyWzNdIDw8IDI0KTsKLQkJCWFkZHJfaGkgPSBhZGRyWzRdIHwg KGFkZHJbNV0gPDwgOCk7Ci0KLQkJCXJldCA9IGxhbjc4eHhfd3JpdGVfcmVnKGRldiwgUlhfQURE UkwsIGFkZHJfbG8pOwotCQkJcmV0ID0gbGFuNzh4eF93cml0ZV9yZWcoZGV2LCBSWF9BRERSSCwg YWRkcl9oaSk7CiAJCX0gZWxzZSB7CiAJCQkvKiBnZW5lcmF0ZSByYW5kb20gTUFDICovCiAJCQly YW5kb21fZXRoZXJfYWRkcihhZGRyKTsKQEAgLTE2NzQsNiArMTY2NywxMSBAQCBzdGF0aWMgdm9p ZCBsYW43OHh4X2luaXRfbWFjX2FkZHJlc3Moc3RydWN0IGxhbjc4eHhfbmV0ICpkZXYpCiAJCQkJ ICAiTUFDIGFkZHJlc3Mgc2V0IHRvIHJhbmRvbSBhZGRyIik7CiAJCX0KIAl9CisJYWRkcl9sbyA9 IGFkZHJbMF0gfCAoYWRkclsxXSA8PCA4KSB8IChhZGRyWzJdIDw8IDE2KSB8IChhZGRyWzNdIDw8 IDI0KTsKKwlhZGRyX2hpID0gYWRkcls0XSB8IChhZGRyWzVdIDw8IDgpOworCisJcmV0ID0gbGFu Nzh4eF93cml0ZV9yZWcoZGV2LCBSWF9BRERSTCwgYWRkcl9sbyk7CisJcmV0ID0gbGFuNzh4eF93 cml0ZV9yZWcoZGV2LCBSWF9BRERSSCwgYWRkcl9oaSk7CiAKIAlyZXQgPSBsYW43OHh4X3dyaXRl X3JlZyhkZXYsIE1BRl9MTygwKSwgYWRkcl9sbyk7CiAJcmV0ID0gbGFuNzh4eF93cml0ZV9yZWco ZGV2LCBNQUZfSEkoMCksIGFkZHJfaGkgfCBNQUZfSElfVkFMSURfKTsK