Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [2/2] usb: dwc2: Fix inefficient copy of unaligned buffers From: =?utf-8?b?QW50dGkgU2VwcMOkbMOk?= Message-Id: <20180705143154.8734-3-a.seppala@gmail.com> Date: Thu, 5 Jul 2018 17:31:54 +0300 To: Minas Harutyunyan , John Youn , Felipe Balbi Cc: Grigor Tovmasyan , Vardan Mikayelyan , Douglas Anderson , William Wu , Greg Kroah-Hartman , linux-usb@vger.kernel.org, =?UTF-8?q?Antti=20Sepp=C3=A4l=C3=A4?= List-ID: TWFrZSBzdXJlIG9ubHkgdG8gY29weSBhbnkgYWN0dWFsIGRhdGEgcmF0aGVyIHRoYW4gdGhlIHdo b2xlIGJ1ZmZlciwKd2hlbiByZWxlYXNpbmcgdGhlIHRlbXBvcmFyeSBidWZmZXIgdXNlZCBmb3Ig dW5hbGlnbmVkIG5vbi1pc29jaHJvbm91cwp0cmFuc2ZlcnMuCgpUYWtlbiBkaXJlY3RseSBmcm9t IGNvbW1pdCAwZWZkOTM3ZTI3ZDVlICgiVVNCOiBlaGNpLXRlZ3JhOiBmaXggaW5lZmZpY2llbnQK Y29weSBvZiB1bmFsaWduZWQgYnVmZmVycyIpCgpUZXN0ZWQgd2l0aCBMYW50aXEgeFJYMjAwIChN SVBTKSBhbmQgUlBpIE1vZGVsIEIgUmV2IDIgKEFSTSkKClNpZ25lZC1vZmYtYnk6IEFudHRpIFNl cHDDpGzDpCA8YS5zZXBwYWxhQGdtYWlsLmNvbT4KLS0tCiBkcml2ZXJzL3VzYi9kd2MyL2hjZC5j IHwgMTIgKysrKysrKysrLS0tCiAxIGZpbGUgY2hhbmdlZCwgOSBpbnNlcnRpb25zKCspLCAzIGRl bGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvdXNiL2R3YzIvaGNkLmMgYi9kcml2ZXJz L3VzYi9kd2MyL2hjZC5jCmluZGV4IDJlZDBhYzE4ZTA1My4uNmUyY2RkN2I5M2Q0IDEwMDY0NAot LS0gYS9kcml2ZXJzL3VzYi9kd2MyL2hjZC5jCisrKyBiL2RyaXZlcnMvdXNiL2R3YzIvaGNkLmMK QEAgLTI2NjgsNiArMjY2OCw3IEBAIHN0YXRpYyBpbnQgZHdjMl9hbGxvY19zcGxpdF9kbWFfYWxp Z25lZF9idWYoc3RydWN0IGR3YzJfaHNvdGcgKmhzb3RnLAogc3RhdGljIHZvaWQgZHdjMl9mcmVl X2RtYV9hbGlnbmVkX2J1ZmZlcihzdHJ1Y3QgdXJiICp1cmIpCiB7CiAJdm9pZCAqc3RvcmVkX3hm ZXJfYnVmZmVyOworCXNpemVfdCBsZW5ndGg7CiAKIAlpZiAoISh1cmItPnRyYW5zZmVyX2ZsYWdz ICYgVVJCX0FMSUdORURfVEVNUF9CVUZGRVIpKQogCQlyZXR1cm47CkBAIC0yNjc2LDkgKzI2Nzcs MTQgQEAgc3RhdGljIHZvaWQgZHdjMl9mcmVlX2RtYV9hbGlnbmVkX2J1ZmZlcihzdHJ1Y3QgdXJi ICp1cmIpCiAJbWVtY3B5KCZzdG9yZWRfeGZlcl9idWZmZXIsIHVyYi0+dHJhbnNmZXJfYnVmZmVy ICsKIAkgICAgICAgdXJiLT50cmFuc2Zlcl9idWZmZXJfbGVuZ3RoLCBzaXplb2YodXJiLT50cmFu c2Zlcl9idWZmZXIpKTsKIAotCWlmICh1c2JfdXJiX2Rpcl9pbih1cmIpKQotCQltZW1jcHkoc3Rv cmVkX3hmZXJfYnVmZmVyLCB1cmItPnRyYW5zZmVyX2J1ZmZlciwKLQkJICAgICAgIHVyYi0+dHJh bnNmZXJfYnVmZmVyX2xlbmd0aCk7CisJaWYgKHVzYl91cmJfZGlyX2luKHVyYikpIHsKKwkJaWYg KHVzYl9waXBlaXNvYyh1cmItPnBpcGUpKQorCQkJbGVuZ3RoID0gdXJiLT50cmFuc2Zlcl9idWZm ZXJfbGVuZ3RoOworCQllbHNlCisJCQlsZW5ndGggPSB1cmItPmFjdHVhbF9sZW5ndGg7CisKKwkJ bWVtY3B5KHN0b3JlZF94ZmVyX2J1ZmZlciwgdXJiLT50cmFuc2Zlcl9idWZmZXIsIGxlbmd0aCk7 CisJfQogCWtmcmVlKHVyYi0+dHJhbnNmZXJfYnVmZmVyKTsKIAl1cmItPnRyYW5zZmVyX2J1ZmZl ciA9IHN0b3JlZF94ZmVyX2J1ZmZlcjsKIAo=