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: usb: gadget: configfs: Disallow empty function instance name From: Alan Stern Message-Id: Date: Tue, 12 Dec 2017 10:54:07 -0500 (EST) To: Felipe Balbi Cc: Krzysztof Opasiak , gregkh@linuxfoundation.org, andrzej.p@samsung.com, linux-usb@vger.kernel.org List-ID: T24gVHVlLCAxMiBEZWMgMjAxNywgRmVsaXBlIEJhbGJpIHdyb3RlOgoKPiBIaSwKPiAKPiBLcnp5 c3p0b2YgT3Bhc2lhayA8ay5vcGFzaWFrQHNhbXN1bmcuY29tPiB3cml0ZXM6Cj4gPiBPbiAxMi8x Mi8yMDE3IDAxOjMxIFBNLCBGZWxpcGUgQmFsYmkgd3JvdGU6Cj4gPj4gCj4gPj4gSGksCj4gPj4g Cj4gPj4gS3J6eXN6dG9mIE9wYXNpYWsgPGsub3Bhc2lha0BzYW1zdW5nLmNvbT4gd3JpdGVzOgo+ ID4+PiBFdmVyeSBmdW5jdGlvbiBzaG91bGQgaGF2ZSBhIHR5cGUgYW5kIGluc3RhbmNlIG5hbWUu Cj4gPj4+IFVuZm9ydHVuYXRlbHkgaW4gbW9zdCBjYXNlcyBpbnN0YW5jZSBuYW1lIHdhcyBsZWZ0 IHVudXNlZCBhbmQgdW5jaGVja2VkLgo+ID4+PiBUaGlzIG1heSBsZWFkIHRvIHNpdHVhdGlvbnMg bGlrZSBGdW5jdGlvbkZTIGRldmljZSBuYW1lIGlkZW50aWZpZWQgYnkgIiIKPiA+Pj4gb3Igc29t ZSBtaXNsZWFkaW5nIGRlYnVnIG1lc3NhZ2VzIGZyb20gVENNIGxpa2U6Cj4gPj4+Cj4gPj4+IHRj bTogQWN0aXZhdGluZwo+ID4+Pgo+ID4+PiBUbyBhdm9pZCB0aGlzIGxldCdzIGFkZCBhIGNoZWNr IHRoYXQgaW5zdGFuY2UgbmFtZSBzaG91bGQgaGF2ZSBhdCBsZWFzdAo+ID4+PiBvbmUgY2hhcmFj dGVyLgo+ID4+Pgo+ID4+PiBSZXBvcnRlZC1ieTogU3RlZmFuIEFnbmVyIDxzdGVmYW5AYWduZXIu Y2g+Cj4gPj4+IFNpZ25lZC1vZmYtYnk6IEtyenlzenRvZiBPcGFzaWFrIDxrLm9wYXNpYWtAc2Ft c3VuZy5jb20+Cj4gPj4+IC0tLQo+ID4+PiAgIGRyaXZlcnMvdXNiL2dhZGdldC9jb25maWdmcy5j IHwgNSArKysrKwo+ID4+PiAgIDEgZmlsZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKykKPiA+Pj4K PiA+Pj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvdXNiL2dhZGdldC9jb25maWdmcy5jIGIvZHJpdmVy cy91c2IvZ2FkZ2V0L2NvbmZpZ2ZzLmMKPiA+Pj4gaW5kZXggYWViOWYzYzQwNTIxLi5iZGM5ZWM1 OTdkNmEgMTAwNjQ0Cj4gPj4+IC0tLSBhL2RyaXZlcnMvdXNiL2dhZGdldC9jb25maWdmcy5jCj4g Pj4+ICsrKyBiL2RyaXZlcnMvdXNiL2dhZGdldC9jb25maWdmcy5jCj4gPj4+IEBAIC01NDgsNiAr NTQ4LDExIEBAIHN0YXRpYyBzdHJ1Y3QgY29uZmlnX2dyb3VwICpmdW5jdGlvbl9tYWtlKAo+ID4+ PiAgIAkqaW5zdGFuY2VfbmFtZSA9ICdcMCc7Cj4gPj4+ICAgCWluc3RhbmNlX25hbWUrKzsKPiA+ Pj4gICAKPiA+Pj4gKwlpZiAoKmluc3RhbmNlX25hbWUgPT0gJ1wwJykgewo+ID4+PiArCQlwcl9l cnIoIkluc3RhbmNlIG5hbWUgKGFmdGVyIC4pIHNob3VsZCBub3QgYmUgZW1wdHlcbiIpOwo+ID4+ PiArCQlyZXR1cm4gRVJSX1BUUigtRUlOVkFMKTsKPiA+Pj4gKwl9Cj4gPj4gCj4gPj4gYWFhYWFh bmQganVzdCBsaWtlIHRoYXQgeW91IGJyZWFrIHBvdGVudGlhbGx5IGV4aXN0aW5nIHNjcmlwdHMg Oi0pCj4gPj4gCj4gPj4gV2UgbmVlZCB0byBmaW5kIGEgYmV0dGVyIHdheSBvZiBlbmZvcmNpbmcg YSBuYW1lIHdoaWNoIGRvZXNuJ3QgYnJlYWsKPiA+PiBleGlzdGluZyB1c2Vycy4KPiA+Cj4gPiBJ J20gcmVhbGx5IG9wZW4gZm9yIHN1Z2dlc3Rpb25zIGhvdyB0byBlbmZvcmNlIHRoaXMgd2l0aG91 dCBicmVha2luZyAKPiA+IHRob3NlIHNjcmlwdHMgOykKPiA+Cj4gPiBUaGUgb3JpZ2luIG9mIHRo aXMgY29tbWl0IGlzIGdpdGh1YiBpc3N1ZSBmb3IgbGlidXNiZ3hbMV0uCj4gPiBTbyB0aGUgcHJv YmxlbSBpcyB0aGF0IGxpYnJhcnkgYWxsb3dzIHRvIGNyZWF0ZSBhIGZ1bmN0aW9uIHdpdGggZW1w dHkgCj4gPiBuYW1lIChiZWNhdXNlIEkgbWlzdGFrZW5seSBhc3N1bWVkIHRoYXQga2VybmVsIHJl amVjdHMgdGhpcykgYnV0IHRoZW4gaXQgCj4gPiBpcyB1bmFibGUgdG8gcmVpbml0aWFsaXplIHRo ZSBDb25maWdGUyBzdGF0ZSBiZWNhdXNlIHRoZXJlIGlzIGEgY2hlY2sgCj4gPiB0aGF0IGRpc2Fs bG93cyB0aGlzLiBGcm9tIG15IHBvaW50IG9mIHZpZXcgSSdkIGJlIGhhcHB5IHRvIGRpc2FsbG93 IAo+ID4gZW1wdHkgbmFtZXMgYmVjYXVzZSBpdCBjYXVzZXMgc29tZSBwcm9ibGVtcyAoZl9mcykg b3Igd2VpcmQgZGVidWcgCj4gPiBtZXNzYWdlcyAoZl90Y20pIHNvIGlzIGdlbmVyYWxseSBpbmNv bnZlbmllbnQgYW5kIHNlZW1zIHRvIGJlIAo+ID4gdW5pbnRlbnRpb25hbC4gQnV0IEkgd291bGQg bGlrZSB0byBrZWVwIHRoaXMgY29uc2lzdGVudCB3aXRoIGtlcm5lbCBwb2xpY3kuCj4gCj4gSSB0 aGluayB3ZSBuZWVkIHRvIGZpcnN0IGZpeCBsaWJ1c2JneCB0byBwcmV2ZW50IGVtcHR5IG5hbWVz Lgo+IAo+IEkgZG9uJ3Qgd2FudCB0byBiZSB0aGUgb25lIGhlYXJpbmcgZnJvbSBMaW51cyB0aGF0 ICJ3ZSBkb24ndCBicmVhawo+IHVzZXJzcGFjZSIuIEl0J3MgY2xlYXIgdGhhdCBlbXB0eSBuYW1l cyBzaG91bGRuJ3QgYmUgYWxsb3dlZCwgYnV0IHRoZXkKPiBfYXJlXyBhbGxvd2VkIGFzIG9mIHRv ZGF5LCBzbyBob3cgY2FuIHdlIGNhdXNlIGEgcmVncmVzc2lvbiBhbGwgb2YgYQo+IHN1ZGRlbj8K PiAKPiBBbGFuLCBHcmVnLCBhbnkgc3VnZ2VzdGlvbnM/CgpZb3UgY291bGQgZG8gc29tZSBzaWxs eSBuYW1lIG11bmdpbmcsIGxpa2UgY2hhbmdpbmcgYW4gZW1wdHkgbmFtZSB0bwoiICIgd2hlbmV2 ZXIgeW91IGVuY291bnRlciBpdC4gIE9yIGFkZGluZyBhbiAnXycgdG8gdGhlIGVuZCBvZiBhbnkg bmFtZQp0aGF0IGNvbnNpc3RzIG9mIG5vdGhpbmcgYnV0ICdfJyBjaGFyYWN0ZXJzLgoKQWxhbiBT dGVybgotLS0KVG8gdW5zdWJzY3JpYmUgZnJvbSB0aGlzIGxpc3Q6IHNlbmQgdGhlIGxpbmUgInVu c3Vic2NyaWJlIGxpbnV4LXVzYiIgaW4KdGhlIGJvZHkgb2YgYSBtZXNzYWdlIHRvIG1ham9yZG9t b0B2Z2VyLmtlcm5lbC5vcmcKTW9yZSBtYWpvcmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2Vy bmVsLm9yZy9tYWpvcmRvbW8taW5mby5odG1sCg==