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([2a02:3030:667:8639:a801:6b4d:7772:893b]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-482e2e3bf18sm16546345e9.19.2026.01.30.07.03.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Jan 2026 07:03:42 -0800 (PST) Message-ID: Subject: Re: [PATCH 3/3] rtc: optee: simplify OP-TEE context match From: Rouven Czerwinski To: Alexandre Belloni Cc: Jens Wiklander , Sumit Garg , Olivia Mackall , Herbert Xu , =?ISO-8859-1?Q?Cl=E9ment_L=E9ger?= , op-tee@lists.trustedfirmware.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-rtc@vger.kernel.org Date: Fri, 30 Jan 2026 16:03:37 +0100 In-Reply-To: <202601291605277bc279f4@mail.local> References: <20260126-optee-simplify-context-match-v1-0-d4104e526cb6@linaro.org> <20260126-optee-simplify-context-match-v1-3-d4104e526cb6@linaro.org> <202601291605277bc279f4@mail.local> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 User-Agent: Evolution 3.58.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 SGkgQWxleGFuZHJlLAoKT24gVGh1LCAyMDI2LTAxLTI5IGF0IDE3OjA1ICswMTAwLCBBbGV4YW5k cmUgQmVsbG9uaSB3cm90ZToKPiBPbiAyNi8wMS8yMDI2IDExOjExOjI2KzAxMDAsIFJvdXZlbiBD emVyd2luc2tpIHZpYSBCNCBSZWxheSB3cm90ZToKPiA+IEZyb206IFJvdXZlbiBDemVyd2luc2tp IDxyb3V2ZW4uY3plcndpbnNraUBsaW5hcm8ub3JnPgo+ID4gCj4gPiBTaW1wbGlmeSB0aGUgVEVF IGltcGxlbWVudG9yIElEIG1hdGNoIGJ5IHJldHVybmluZyB0aGUgYm9vbGVhbgo+ID4gZXhwcmVz c2lvbiBkaXJlY3RseSBpbnN0ZWFkIG9mIGdvaW5nIHRocm91Z2ggYW4gaWYvZWxzZS4KPiA+IAo+ ID4gU2lnbmVkLW9mZi1ieTogUm91dmVuIEN6ZXJ3aW5za2kgPHJvdXZlbi5jemVyd2luc2tpQGxp bmFyby5vcmc+Cj4gPiAtLS0KPiA+IMKgZHJpdmVycy9ydGMvcnRjLW9wdGVlLmMgfCA1ICstLS0t Cj4gPiDCoDEgZmlsZSBjaGFuZ2VkLCAxIGluc2VydGlvbigrKSwgNCBkZWxldGlvbnMoLSkKPiA+ IAo+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvcnRjL3J0Yy1vcHRlZS5jIGIvZHJpdmVycy9ydGMv cnRjLW9wdGVlLmMKPiA+IGluZGV4IDE4NGM2ZDE0MjgwMS4uMmYxOGJlM2RlNjg0IDEwMDY0NAo+ ID4gLS0tIGEvZHJpdmVycy9ydGMvcnRjLW9wdGVlLmMKPiA+ICsrKyBiL2RyaXZlcnMvcnRjL3J0 Yy1vcHRlZS5jCj4gPiBAQCAtNTQxLDEwICs1NDEsNyBAQCBzdGF0aWMgaW50IG9wdGVlX3J0Y19y ZWFkX2luZm8oc3RydWN0IGRldmljZQo+ID4gKmRldiwgc3RydWN0IHJ0Y19kZXZpY2UgKnJ0YywK PiA+IMKgCj4gPiDCoHN0YXRpYyBpbnQgb3B0ZWVfY3R4X21hdGNoKHN0cnVjdCB0ZWVfaW9jdGxf dmVyc2lvbl9kYXRhICp2ZXIsCj4gPiBjb25zdCB2b2lkICpkYXRhKQo+ID4gwqB7Cj4gPiAtCWlm ICh2ZXItPmltcGxfaWQgPT0gVEVFX0lNUExfSURfT1BURUUpCj4gPiAtCQlyZXR1cm4gMTsKPiA+ IC0JZWxzZQo+ID4gLQkJcmV0dXJuIDA7Cj4gPiArCXJldHVybiAodmVyLT5pbXBsX2lkID09IFRF RV9JTVBMX0lEX09QVEVFKTsKPiAKPiBJIGd1ZXNzIHRoZSBjb3JyZWN0IHdheSB0byBkbyB0aGlz IHdvdWxkIGJlOgo+IAo+IHJldHVybiAhISh2ZXItPmltcGxfaWQgPT0gVEVFX0lNUExfSURfT1BU RUUpOwoKQ291bGQgeW91IGV4cGxhaW4gd2h5PyBJZiBJIHJlYWQgdGhlIHN0YW5kYXJkIGNvcnJl Y3RseSwgYW4gZXF1YWxpdHkKb3BlcmF0aW9uIGFsd2F5cyBwcm9kdWNlcyBlaXRoZXIgMSBvciAw LCBzbyB0aGVyZSBzaG91bGQgYmUgbm8gbmVlZCBmb3IKISEgaGVyZSBsaWtlIHRoZXJlIGlzIGZv ciBiaXQgZmxhZyBjb21wYXJpc29ucywgaS5lLiAhIShmbGFnICYKU09NRV9GTEFHX1NFVCkgdG8g bm9ybWFsaXplIHRvIDEgb3IgMC4gV29uZGVyaW5nIGlmIEkgYW0gbWlzc2luZwpzb21ldGhpbmcu Cgo+IEJ1dCBpcyB0aGlzIGNoYW5nZSBhY3R1YWxseSBnZW5lcmF0aW5nIGJldHRlciBjb2RlPwo+ IAo+IEJlZm9yZToKPiAKPiBzdGF0aWMgaW50IG9wdGVlX2N0eF9tYXRjaChzdHJ1Y3QgdGVlX2lv Y3RsX3ZlcnNpb25fZGF0YSAqdmVyLCBjb25zdAo+IHZvaWQgKmRhdGEpCj4gewo+IMKgwqDCoMKg wqDCoMKgIGlmICh2ZXItPmltcGxfaWQgPT0gVEVFX0lNUExfSURfT1BURUUpCj4gwqDCoMKgwqDC oMKgIDA6wqDCoMKgwqDCoMKgIGU1OTAwMDAwwqDCoMKgwqDCoMKgwqAgbGRywqDCoMKgwqAgcjAs IFtyMF0KPiDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgcmV0dXJuIDE7Cj4gwqDCoMKg wqDCoMKgwqAgZWxzZQo+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCByZXR1cm4gMDsK PiB9Cj4gwqDCoMKgwqDCoMKgIDQ6wqDCoMKgwqDCoMKgIGUyNDAwMDAxwqDCoMKgwqDCoMKgwqAg c3ViwqDCoMKgwqAgcjAsIHIwLCAjMQo+IMKgwqDCoMKgwqDCoCA4OsKgwqDCoMKgwqDCoCBlMTZm MGYxMMKgwqDCoMKgwqDCoMKgIGNsesKgwqDCoMKgIHIwLCByMAo+IMKgwqDCoMKgwqDCoCBjOsKg wqDCoMKgwqDCoCBlMWEwMDJhMMKgwqDCoMKgwqDCoMKgIGxzcsKgwqDCoMKgIHIwLCByMCwgIzUK PiDCoMKgwqDCoMKgIDEwOsKgwqDCoMKgwqDCoCBlMTJmZmYxZcKgwqDCoMKgwqDCoMKgIGJ4wqDC oMKgwqDCoCBscgo+IAo+IEFmdGVyOgo+IAo+IHN0YXRpYyBpbnQgb3B0ZWVfY3R4X21hdGNoKHN0 cnVjdCB0ZWVfaW9jdGxfdmVyc2lvbl9kYXRhICp2ZXIsIGNvbnN0Cj4gdm9pZCAqZGF0YSkKPiB7 Cj4gwqDCoMKgwqDCoMKgwqAgcmV0dXJuICEhKHZlci0+aW1wbF9pZCA9PSBURUVfSU1QTF9JRF9P UFRFRSk7Cj4gwqDCoMKgwqDCoMKgIDA6wqDCoMKgwqDCoMKgIGU1OTAwMDAwwqDCoMKgwqDCoMKg wqAgbGRywqDCoMKgwqAgcjAsIFtyMF0KPiB9Cj4gwqDCoMKgwqDCoMKgIDQ6wqDCoMKgwqDCoMKg IGUyNDAwMDAxwqDCoMKgwqDCoMKgwqAgc3ViwqDCoMKgwqAgcjAsIHIwLCAjMQo+IMKgwqDCoMKg wqDCoCA4OsKgwqDCoMKgwqDCoCBlMTZmMGYxMMKgwqDCoMKgwqDCoMKgIGNsesKgwqDCoMKgIHIw LCByMAo+IMKgwqDCoMKgwqDCoCBjOsKgwqDCoMKgwqDCoCBlMWEwMDJhMMKgwqDCoMKgwqDCoMKg IGxzcsKgwqDCoMKgIHIwLCByMCwgIzUKPiDCoMKgwqDCoMKgIDEwOsKgwqDCoMKgwqDCoCBlMTJm ZmYxZcKgwqDCoMKgwqDCoMKgIGJ4wqDCoMKgwqDCoCBscgo+IAo+IEknbSBpbiBmYXZvciBvZiBr ZWVwaW5nIHRoZSBjdXJyZW50IHZlcnNpb24uCgpJIGxpa2UgdGhlIHNob3J0IHZlcnNpb24gYmV0 dGVyLCBidXQgSSBhbSBhbHNvIG5vdCB2ZXJ5IGF0dGFjaGVkIHRvCmdldHRpbmcgdGhpcyBpbiBh dCBhbGwsIEknbGwgbGV0IHRoZSBtYWludGFpbmVycyBkZWNpZGUuCgpUaGFua3MgYW5kIGJlc3Qg cmVnYXJkcywKUm91dmVuCgoK