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: [05/20] usb: host: xhci: introduce xhci_num_tds_for_urb() helper From: Felipe Balbi Message-Id: <20180416122930.15697-5-felipe.balbi@linux.intel.com> Date: Mon, 16 Apr 2018 15:29:15 +0300 To: Mathias Nyman Cc: Linux USB , Felipe Balbi List-ID: VGhpcyBoZWxwZXIgY29tcHV0ZXMgdGhlIG51bWJlciBvZiBURHMgZm9yIGEgZ2l2ZW4gdXJiLiBD bGVhbnVwIG9ubHksCm5vIGZ1bmN0aW9uYWwgY2hhbmdlcy4KCk5vdGUgdGhhdCB3aGlsZSBhdCB0 aGF0IHdlJ3ZlIHJlcGxhY2VkIGFuIGFsaWdubWVudCBjaGVjayB3aXRoIHRoZQpJU19BTElHTkVE KCkgbWFjcm8gd2hpY2ggbWFrZXMgdGhlIGNvZGUgc2xpZ2h0bHkgY2xlYXJlciBhYm91dCBpdHMK aW50ZW50aW9uLgoKU2lnbmVkLW9mZi1ieTogRmVsaXBlIEJhbGJpIDxmZWxpcGUuYmFsYmlAbGlu dXguaW50ZWwuY29tPgotLS0KIGRyaXZlcnMvdXNiL2hvc3QveGhjaS5jIHwgMjYgKysrKysrKysr KysrKysrKy0tLS0tLS0tLS0KIDEgZmlsZSBjaGFuZ2VkLCAxNiBpbnNlcnRpb25zKCspLCAxMCBk ZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL3VzYi9ob3N0L3hoY2kuYyBiL2RyaXZl cnMvdXNiL2hvc3QveGhjaS5jCmluZGV4IGRiYTRjNjFmNWNmNi4uZjI3MzNmNzE3NTY4IDEwMDY0 NAotLS0gYS9kcml2ZXJzL3VzYi9ob3N0L3hoY2kuYworKysgYi9kcml2ZXJzL3VzYi9ob3N0L3ho Y2kuYwpAQCAtMTI4MSw2ICsxMjgxLDIxIEBAIHN0YXRpYyBpbnQgeGhjaV9jaGVja19tYXhwYWNr ZXQoc3RydWN0IHhoY2lfaGNkICp4aGNpLCB1bnNpZ25lZCBpbnQgc2xvdF9pZCwKIAlyZXR1cm4g cmV0OwogfQogCitzdGF0aWMgaW50IHhoY2lfbnVtX3Rkc19mb3JfdXJiKHN0cnVjdCB1cmIgKnVy YikKK3sKKwlpZiAodXNiX2VuZHBvaW50X3hmZXJfaXNvYygmdXJiLT5lcC0+ZGVzYykpCisJCXJl dHVybiB1cmItPm51bWJlcl9vZl9wYWNrZXRzOworCisJaWYgKHVzYl9lbmRwb2ludF9pc19idWxr X291dCgmdXJiLT5lcC0+ZGVzYykgJiYKKwkgICAgdXJiLT50cmFuc2Zlcl9idWZmZXJfbGVuZ3Ro ID4gMCAmJgorCSAgICB1cmItPnRyYW5zZmVyX2ZsYWdzICYgVVJCX1pFUk9fUEFDS0VUICYmCisJ ICAgIElTX0FMSUdORUQodXJiLT50cmFuc2Zlcl9idWZmZXJfbGVuZ3RoLAorCQkJdXNiX2VuZHBv aW50X21heHAoJnVyYi0+ZXAtPmRlc2MpKSkKKwkJcmV0dXJuIDI7CisKKwlyZXR1cm4gMTsKK30K KwogLyoKICAqIG5vbi1lcnJvciByZXR1cm5zIGFyZSBhIHByb21pc2UgdG8gZ2l2ZWJhY2soKSB0 aGUgdXJiIGxhdGVyCiAgKiB3ZSBkcm9wIG93bmVyc2hpcCBzbyBuZXh0IG93bmVyIChvciB1cmIg dW5saW5rKSBjYW4gZ2V0IGl0CkBAIC0xMzI3LDE2ICsxMzQyLDcgQEAgc3RhdGljIGludCB4aGNp X3VyYl9lbnF1ZXVlKHN0cnVjdCB1c2JfaGNkICpoY2QsIHN0cnVjdCB1cmIgKnVyYiwgZ2ZwX3Qg bWVtX2ZsYWcKIAkJfQogCX0KIAotCWlmICh1c2JfZW5kcG9pbnRfeGZlcl9pc29jKCZ1cmItPmVw LT5kZXNjKSkKLQkJbnVtX3RkcyA9IHVyYi0+bnVtYmVyX29mX3BhY2tldHM7Ci0JZWxzZSBpZiAo dXNiX2VuZHBvaW50X2lzX2J1bGtfb3V0KCZ1cmItPmVwLT5kZXNjKSAmJgotCSAgICB1cmItPnRy YW5zZmVyX2J1ZmZlcl9sZW5ndGggPiAwICYmCi0JICAgIHVyYi0+dHJhbnNmZXJfZmxhZ3MgJiBV UkJfWkVST19QQUNLRVQgJiYKLQkgICAgISh1cmItPnRyYW5zZmVyX2J1ZmZlcl9sZW5ndGggJSB1 c2JfZW5kcG9pbnRfbWF4cCgmdXJiLT5lcC0+ZGVzYykpKQotCQludW1fdGRzID0gMjsKLQllbHNl Ci0JCW51bV90ZHMgPSAxOwotCisJbnVtX3RkcyA9IHhoY2lfbnVtX3Rkc19mb3JfdXJiKHVyYik7 CiAJdXJiX3ByaXYgPSBremFsbG9jKHNpemVvZihzdHJ1Y3QgdXJiX3ByaXYpICsKIAkJCSAgIG51 bV90ZHMgKiBzaXplb2Yoc3RydWN0IHhoY2lfdGQpLCBtZW1fZmxhZ3MpOwogCWlmICghdXJiX3By aXYpCg==