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: <20180101135151.GA6113@himanshu-Vostro-3559> Date: Mon, 1 Jan 2018 19:21:51 +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: T24gU3VuLCBEZWMgMzEsIDIwMTcgYXQgMDQ6MjA6NDVQTSAtMDUwMCwgQWxhbiBTdGVybiB3cm90 ZToKPiBPbiBTdW4sIDMxIERlYyAyMDE3LCBIaW1hbnNodSBKaGEgd3JvdGU6Cj4gCj4gPiBVc2Ug ZG1hX3phbGxvY19jb2hlcmVudCBmb3IgYWxsb2NhdGluZyB6ZXJvZWQKPiA+IG1lbW9yeSBhbmQg cmVtb3ZlIHVubmVjZXNzYXJ5IG1lbXNldCBmdW5jdGlvbi4KPiA+IAo+ID4gRG9uZSB1c2luZyBD b2NjaW5lbGxlLgo+ID4gR2VuZXJhdGVkLWJ5OiBzY3JpcHRzL2NvY2NpbmVsbGUvYXBpL2FsbG9j L2t6YWxsb2Mtc2ltcGxlLmNvY2NpCj4gPiAwLWRheSB0ZXN0ZWQgd2l0aCBubyBmYWlsdXJlcy4K PiA+IAo+ID4gU3VnZ2VzdGVkLWJ5OiBMdWlzIFIuIFJvZHJpZ3VleiA8bWNncm9mQGtlcm5lbC5v cmc+Cj4gPiBTaWduZWQtb2ZmLWJ5OiBIaW1hbnNodSBKaGEgPGhpbWFuc2h1amhhMTk5NjQwQGdt YWlsLmNvbT4KPiA+IC0tLQo+ID4gdjI6Cj4gPiAgICAtYWxpZ24gYXJndW1lbnN0IGFzIHRoZXkg d2VyZSBiZWZvcmUgYXBwbHlpbmcgdGhlIFNtUEwgcnVsZS4KPiAKPiBGb3IgdGhlIFVIQ0kgcG9y dGlvbjoKPiAKPiBBY2tlZC1ieTogQWxhbiBTdGVybiA8c3Rlcm5Acm93bGFuZC5oYXJ2YXJkLmVk dT4KPiAKPiBCdXQgdGhlcmUgaXMgc29tZXRoaW5nIHBlY3VsYXIgYWJvdXQgdGhlIHBhdGNoLi4u Cj4gCj4gPiAgZHJpdmVycy91c2IvaG9zdC91aGNpLWhjZC5jIHwgNyArKystLS0tCj4gPiAgZHJp dmVycy91c2IvaG9zdC94aGNpLW1lbS5jIHwgNyArKy0tLS0tCj4gPiAgMiBmaWxlcyBjaGFuZ2Vk LCA1IGluc2VydGlvbnMoKyksIDkgZGVsZXRpb25zKC0pCj4gPiAKPiA+IGRpZmYgLS1naXQgYS9k cml2ZXJzL3VzYi9ob3N0L3VoY2ktaGNkLmMgYi9kcml2ZXJzL3VzYi9ob3N0L3VoY2ktaGNkLmMK PiA+IGluZGV4IGY1YzkwMjEuLmFjNTMzOTggMTAwNjQ0Cj4gPiAtLS0gYS9kcml2ZXJzL3VzYi9o b3N0L3VoY2ktaGNkLmMKPiA+ICsrKyBiL2RyaXZlcnMvdXNiL2hvc3QvdWhjaS1oY2QuYwo+ID4g QEAgLTYwMCwxNSArNjAwLDE0IEBAIHN0YXRpYyBpbnQgdWhjaV9zdGFydChzdHJ1Y3QgdXNiX2hj ZCAqaGNkKQo+ID4gIAl1aGNpLT5kZW50cnkgPSBkZW50cnk7Cj4gPiAgI2VuZGlmCj4gPiAgCj4g PiAtCXVoY2ktPmZyYW1lID0gZG1hX2FsbG9jX2NvaGVyZW50KHVoY2lfZGV2KHVoY2kpLAo+ID4g LQkJCVVIQ0lfTlVNRlJBTUVTICogc2l6ZW9mKCp1aGNpLT5mcmFtZSksCj4gPiAtCQkJJnVoY2kt PmZyYW1lX2RtYV9oYW5kbGUsIEdGUF9LRVJORUwpOwo+ID4gKwl1aGNpLT5mcmFtZSA9IGRtYV96 YWxsb2NfY29oZXJlbnQodWhjaV9kZXYodWhjaSksCj4gPiArCQkJVUhDSV9OVU1GUkFNRVMgKiBz aXplb2YoKnVoY2ktPmZyYW1lKSwKPiA+ICsJCQkmdWhjaS0+ZnJhbWVfZG1hX2hhbmRsZSwgR0ZQ X0tFUk5FTCk7Cj4gCj4gVGhlIHNlY29uZCBhbmQgdGhpcmQgImNoYW5nZWQiIGxpbmVzIGhlcmUg YWN0dWFsbHkgYXJlIGlkZW50aWNhbC4gIFdoYXQgCj4gcHJvZ3JhbSB3b3VsZCBwcm9kdWNlIGEg ZGlmZiBmaWxlIHNob3dpbmcgdGhhdCB0aGV5IHdlcmUgY2hhbmdlZD8KCkknbSBzb3JyeSwgSSBj YW4ndCB1bmRlcnN0YW5kIHRoZSBwcm9ibGVtLgpUaGUgcGF0Y2ggd2FzIGdlbmVyYXRlZCBieSBj b2NjaSBzY3JpcHQgc3BlY2lmaWVkIGFib3ZlIGFuZCB0aGVuIHlvdQp0b2xkIG1lIHRvIGNoYW5n ZSB0aGUgd2hpdGVzcGFjZSBzY2hlbWUgYXMgaXQgd2FzIGJlZm9yZS4gSXQgaXMgYWxzbwowLWRh eSB0ZXN0ZWQgYXMgc3BlY2lmaWVkIGFib3ZlLiBJdCdzIGFsc28gZnJlZSBmcm9tIHdhcm5pbmdz IHJlcG9ydGVkIGJ5CmNoZWNrcGF0Y2guCgpJZiBhcmUgc3RpbGwgY29uZnVzZWQgcGxlYXNlIHRh a2UgYSBsb29rIGF0IHRoZSBydWxlIDoKaHR0cHM6Ly9sa21sLm9yZy9sa21sLzIwMTcvMTIvMjYv MjA1CndoaWNoIHdpbGwgYmUgc29vbiBtZXJnZWQgdG8gdGhlIGxpbnV4LW5leHQgdHJlZS4KClRo YW5rcwpIaW1hbnNodSBKaGEKLS0tClRvIHVuc3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5k IHRoZSBsaW5lICJ1bnN1YnNjcmliZSBsaW51eC11c2IiIGluCnRoZSBib2R5IG9mIGEgbWVzc2Fn ZSB0byBtYWpvcmRvbW9Admdlci5rZXJuZWwub3JnCk1vcmUgbWFqb3Jkb21vIGluZm8gYXQgIGh0 dHA6Ly92Z2VyLmtlcm5lbC5vcmcvbWFqb3Jkb21vLWluZm8uaHRtbAo=