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: [v2] USB: host: Use zeroing memory allocator rather than allocator/memset From: Himanshu Jha Message-Id: <20180101155942.GA10108@himanshu-Vostro-3559> Date: Mon, 1 Jan 2018 21:29:42 +0530 To: Alan Stern Cc: gregkh@linuxfoundation.org, mathias.nyman@intel.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, mcgrof@kernel.org List-ID: T24gTW9uLCBKYW4gMDEsIDIwMTggYXQgMTA6NTM6MDdBTSAtMDUwMCwgQWxhbiBTdGVybiB3cm90 ZToKPiBPbiBNb24sIDEgSmFuIDIwMTgsIEhpbWFuc2h1IEpoYSB3cm90ZToKPiAKPiA+IE9uIFN1 biwgRGVjIDMxLCAyMDE3IGF0IDA0OjIwOjQ1UE0gLTA1MDAsIEFsYW4gU3Rlcm4gd3JvdGU6Cj4g PiA+IE9uIFN1biwgMzEgRGVjIDIwMTcsIEhpbWFuc2h1IEpoYSB3cm90ZToKPiA+ID4gCj4gPiA+ ID4gVXNlIGRtYV96YWxsb2NfY29oZXJlbnQgZm9yIGFsbG9jYXRpbmcgemVyb2VkCj4gPiA+ID4g bWVtb3J5IGFuZCByZW1vdmUgdW5uZWNlc3NhcnkgbWVtc2V0IGZ1bmN0aW9uLgo+ID4gPiA+IAo+ ID4gPiA+IERvbmUgdXNpbmcgQ29jY2luZWxsZS4KPiA+ID4gPiBHZW5lcmF0ZWQtYnk6IHNjcmlw dHMvY29jY2luZWxsZS9hcGkvYWxsb2Mva3phbGxvYy1zaW1wbGUuY29jY2kKPiA+ID4gPiAwLWRh eSB0ZXN0ZWQgd2l0aCBubyBmYWlsdXJlcy4KPiA+ID4gPiAKPiA+ID4gPiBTdWdnZXN0ZWQtYnk6 IEx1aXMgUi4gUm9kcmlndWV6IDxtY2dyb2ZAa2VybmVsLm9yZz4KPiA+ID4gPiBTaWduZWQtb2Zm LWJ5OiBIaW1hbnNodSBKaGEgPGhpbWFuc2h1amhhMTk5NjQwQGdtYWlsLmNvbT4KPiA+ID4gPiAt LS0KPiA+ID4gPiB2MjoKPiA+ID4gPiAgICAtYWxpZ24gYXJndW1lbnN0IGFzIHRoZXkgd2VyZSBi ZWZvcmUgYXBwbHlpbmcgdGhlIFNtUEwgcnVsZS4KPiA+ID4gCj4gPiA+IEZvciB0aGUgVUhDSSBw b3J0aW9uOgo+ID4gPiAKPiA+ID4gQWNrZWQtYnk6IEFsYW4gU3Rlcm4gPHN0ZXJuQHJvd2xhbmQu aGFydmFyZC5lZHU+Cj4gPiA+IAo+ID4gPiBCdXQgdGhlcmUgaXMgc29tZXRoaW5nIHBlY3VsYXIg YWJvdXQgdGhlIHBhdGNoLi4uCj4gPiA+IAo+ID4gPiA+ICBkcml2ZXJzL3VzYi9ob3N0L3VoY2kt aGNkLmMgfCA3ICsrKy0tLS0KPiA+ID4gPiAgZHJpdmVycy91c2IvaG9zdC94aGNpLW1lbS5jIHwg NyArKy0tLS0tCj4gPiA+ID4gIDIgZmlsZXMgY2hhbmdlZCwgNSBpbnNlcnRpb25zKCspLCA5IGRl bGV0aW9ucygtKQo+ID4gPiA+IAo+ID4gPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL3VzYi9ob3N0 L3VoY2ktaGNkLmMgYi9kcml2ZXJzL3VzYi9ob3N0L3VoY2ktaGNkLmMKPiA+ID4gPiBpbmRleCBm NWM5MDIxLi5hYzUzMzk4IDEwMDY0NAo+ID4gPiA+IC0tLSBhL2RyaXZlcnMvdXNiL2hvc3QvdWhj aS1oY2QuYwo+ID4gPiA+ICsrKyBiL2RyaXZlcnMvdXNiL2hvc3QvdWhjaS1oY2QuYwo+ID4gPiA+ IEBAIC02MDAsMTUgKzYwMCwxNCBAQCBzdGF0aWMgaW50IHVoY2lfc3RhcnQoc3RydWN0IHVzYl9o Y2QgKmhjZCkKPiA+ID4gPiAgCXVoY2ktPmRlbnRyeSA9IGRlbnRyeTsKPiA+ID4gPiAgI2VuZGlm Cj4gPiA+ID4gIAo+ID4gPiA+IC0JdWhjaS0+ZnJhbWUgPSBkbWFfYWxsb2NfY29oZXJlbnQodWhj aV9kZXYodWhjaSksCj4gPiA+ID4gLQkJCVVIQ0lfTlVNRlJBTUVTICogc2l6ZW9mKCp1aGNpLT5m cmFtZSksCj4gPiA+ID4gLQkJCSZ1aGNpLT5mcmFtZV9kbWFfaGFuZGxlLCBHRlBfS0VSTkVMKTsK PiA+ID4gPiArCXVoY2ktPmZyYW1lID0gZG1hX3phbGxvY19jb2hlcmVudCh1aGNpX2Rldih1aGNp KSwKPiA+ID4gPiArCQkJVUhDSV9OVU1GUkFNRVMgKiBzaXplb2YoKnVoY2ktPmZyYW1lKSwKPiA+ ID4gPiArCQkJJnVoY2ktPmZyYW1lX2RtYV9oYW5kbGUsIEdGUF9LRVJORUwpOwo+ID4gPiAKPiA+ ID4gVGhlIHNlY29uZCBhbmQgdGhpcmQgImNoYW5nZWQiIGxpbmVzIGhlcmUgYWN0dWFsbHkgYXJl IGlkZW50aWNhbC4gIFdoYXQgCj4gPiA+IHByb2dyYW0gd291bGQgcHJvZHVjZSBhIGRpZmYgZmls ZSBzaG93aW5nIHRoYXQgdGhleSB3ZXJlIGNoYW5nZWQ/Cj4gPiAKPiA+IEknbSBzb3JyeSwgSSBj YW4ndCB1bmRlcnN0YW5kIHRoZSBwcm9ibGVtLgo+IAo+IFRoZXJlIGlzIG5vIHByb2JsZW0uICBJ IG1lcmVseSBhc2tlZCBhIHF1ZXN0aW9uLgo+IAo+ID4gVGhlIHBhdGNoIHdhcyBnZW5lcmF0ZWQg YnkgY29jY2kgc2NyaXB0IHNwZWNpZmllZCBhYm92ZSBhbmQgdGhlbiB5b3UKPiA+IHRvbGQgbWUg dG8gY2hhbmdlIHRoZSB3aGl0ZXNwYWNlIHNjaGVtZSBhcyBpdCB3YXMgYmVmb3JlLgo+IAo+IFll cywgSSBrbm93LiAgQnV0IGRpZCB5b3UgY2hhbmdlIHRoZSBjb2NjaSBzY3JpcHQgdG8gbWFrZSBp dCBwcm9kdWNlCj4gdGhpcyBuZXcgcGF0Y2gsIG9yIGRpZCB5b3UgbWFrZSB0aGUgcGF0Y2ggYnkg bWFudWFsbHkgZWRpdGluZyB0aGUgb2xkCj4gdmVyc2lvbj8gIEluIG90aGVyIHdvcmRzLCBob3cg d2FzIHRoaXMgcGF0Y2ggZ2VuZXJhdGVkPwoKSSBkaWQgdGhhdCBtYW51YWxseSwgbm8gY2hhbmdl IGluIGNvY2NpIHNjcmlwdC4KClRoYW5rcwpIaW1hbnNodSBKaGEKLS0tClRvIHVuc3Vic2NyaWJl IGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNjcmliZSBsaW51eC11c2IiIGlu CnRoZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdlci5rZXJuZWwub3JnCk1vcmUg bWFqb3Jkb21vIGluZm8gYXQgIGh0dHA6Ly92Z2VyLmtlcm5lbC5vcmcvbWFqb3Jkb21vLWluZm8u aHRtbAo=