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bh=XPHS+G2PK3HSSLicq3iMEc5QRy9j7GIGDRoyVEfXr+E=; b=dBMXY+F8CCxhqFSV2pc3cGPj3sIiqQ8eAAjFGGXzWubu7wTFvMtjRG/j65pWaRiAKu+o/l eFlhHDwkjydZqKeCqd5HRJlykii7zTzOU9gizijYDxCn4rsNKZKCTIK9AQzBwP/aX3WjL7 torGWviK40d82yFqlF+Xf8nstGXLbsVZQCxbK8p+YIYCJOn52pCzkVZlxjiyckg7K8UIHG 6u8EyH1/CHT1iGYgNYymtozQy+lWJ6pHZLf0yaTT5YEzqWGZkJvWW6egisGnFrWtok9qxz cUC8ZSP1vBOe3nMPC+WdEKc57hRz1iarw6RMWgJ67BVVLgZk8kChHtZlgqLfFw== From: Miquel Raynal To: Pengpeng Hou Cc: vigneshr@ti.com, richard@nod.at, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Huang Shijie , stable@vger.kernel.org Subject: Re: [PATCH] mtd: rawnand: validate ONFI extended parameter page sections In-Reply-To: <20260715084226.38336-1-pengpeng@iscas.ac.cn> (Pengpeng Hou's message of "Wed, 15 Jul 2026 16:42:26 +0800") References: <20260715084226.38336-1-pengpeng@iscas.ac.cn> User-Agent: mu4e 1.12.7; emacs 30.2 Date: Fri, 17 Jul 2026 14:21:36 +0200 Message-ID: <871pd1kdrj.fsf@bootlin.com> MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260717_052144_810358_104580B9 X-CRM114-Status: GOOD ( 19.83 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGkgUGVuZ3BlbmcsCgpPbiAxNS8wNy8yMDI2IGF0IDE2OjQyOjI2ICswOCwgUGVuZ3BlbmcgSG91 IDxwZW5ncGVuZ0Bpc2Nhcy5hYy5jbj4gd3JvdGU6Cgo+IG5hbmRfZmxhc2hfZGV0ZWN0X2V4dF9w YXJhbV9wYWdlKCkgYWxsb2NhdGVzIGEgbGVuZ3RoIGRlY2xhcmVkIGJ5IHRoZSBPTkZJCj4gcGFy YW1ldGVyIHBhZ2UuICBJdCB0cmVhdHMgdGhlIHJldHVybmVkIGRhdGEgYXMgYSBmaXhlZCBoZWFk ZXIgZm9sbG93ZWQgYnkKPiB2YXJpYWJsZS1sZW5ndGggc2VjdGlvbnMuICBJdCByZWFkcyB0aGF0 IGhlYWRlciBhbmQgYWR2YW5jZXMgb3ZlciBzZWN0aW9ucwo+IHdpdGhvdXQgZmlyc3QgcHJvdmlu ZyB0aGF0IHRoZSBwYWdlIGFuZCBlYWNoIGN1cnJlbnQgc2VjdGlvbiBmaXQgaW4gdGhlCj4gYWxs b2NhdGVkIGJ1ZmZlci4KPgo+IFJlamVjdCBwYWdlcyBzaG9ydGVyIHRoYW4gdGhlIGZpeGVkIGhl YWRlci4gIFRyYWNrIHJlbWFpbmluZyBieXRlcyB3aGlsZQo+IHdhbGtpbmcgc2VjdGlvbnMuICBS ZXF1aXJlIHRoZSBFQ0Mgc2VjdGlvbiB0byBjb3ZlciBldmVyeSBmaWVsZCByZWFkIGZyb20KPiBz dHJ1Y3Qgb25maV9leHRfZWNjX2luZm8uCj4KPiBGaXhlczogNmRjYmUwY2RkODNmICgibXRkOiBn ZXQgdGhlIEVDQyBpbmZvIGZyb20gdGhlIEV4dGVuZGVkIFBhcmFtZXRlciBQYWdlIikKPiBDYzog c3RhYmxlQHZnZXIua2VybmVsLm9yZwo+IFNpZ25lZC1vZmYtYnk6IFBlbmdwZW5nIEhvdSA8cGVu Z3BlbmdAaXNjYXMuYWMuY24+Cj4gLS0tCj4gIGRyaXZlcnMvbXRkL25hbmQvcmF3L25hbmRfb25m aS5jIHwgMjIgKysrKysrKysrKysrKysrKysrKystLQo+ICAxIGZpbGUgY2hhbmdlZCwgMjAgaW5z ZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKPgo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL210ZC9u YW5kL3Jhdy9uYW5kX29uZmkuYyBiL2RyaXZlcnMvbXRkL25hbmQvcmF3L25hbmRfb25maS5jCj4g aW5kZXggY2QzYWQzNzM4ODNlLi40MGI3ZGIxMGJkNzMgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9t dGQvbmFuZC9yYXcvbmFuZF9vbmZpLmMKPiArKysgYi9kcml2ZXJzL210ZC9uYW5kL3Jhdy9uYW5k X29uZmkuYwo+IEBAIC00MCwxMSArNDAsMTYgQEAgc3RhdGljIGludCBuYW5kX2ZsYXNoX2RldGVj dF9leHRfcGFyYW1fcGFnZShzdHJ1Y3QgbmFuZF9jaGlwICpjaGlwLAo+ICAJc3RydWN0IG9uZmlf ZXh0X3NlY3Rpb24gKnM7Cj4gIAlzdHJ1Y3Qgb25maV9leHRfZWNjX2luZm8gKmVjYzsKPiAgCXVp bnQ4X3QgKmN1cnNvcjsKPiArCXNpemVfdCBzZWN0aW9uX2xlbjsKPiArCXNpemVfdCByZW1haW5p bmc7Cj4gIAlpbnQgcmV0Owo+ICAJaW50IGxlbjsKPiAgCWludCBpOwo+ICAKPiAgCWxlbiA9IGxl MTZfdG9fY3B1KHAtPmV4dF9wYXJhbV9wYWdlX2xlbmd0aCkgKiAxNjsKPiArCWlmIChsZW4gPCBz aXplb2YoKmVwKSkKPiArCQlyZXR1cm4gLUVJTlZBTDsKPiArCj4gIAllcCA9IGttYWxsb2MobGVu LCBHRlBfS0VSTkVMKTsKPiAgCWlmICghZXApCj4gIAkJcmV0dXJuIC1FTk9NRU07Cj4gQEAgLTc3 LDExICs4MiwyNCBAQCBzdGF0aWMgaW50IG5hbmRfZmxhc2hfZGV0ZWN0X2V4dF9wYXJhbV9wYWdl KHN0cnVjdCBuYW5kX2NoaXAgKmNoaXAsCj4gIAo+ICAJLyogZmluZCB0aGUgRUNDIHNlY3Rpb24u ICovCj4gIAljdXJzb3IgPSAodWludDhfdCAqKShlcCArIDEpOwo+ICsJcmVtYWluaW5nID0gbGVu IC0gc2l6ZW9mKCplcCk7Cj4gIAlmb3IgKGkgPSAwOyBpIDwgT05GSV9FWFRfU0VDVElPTl9NQVg7 IGkrKykgewo+ICAJCXMgPSBlcC0+c2VjdGlvbnMgKyBpOwo+IC0JCWlmIChzLT50eXBlID09IE9O RklfU0VDVElPTl9UWVBFXzIpCj4gKwkJc2VjdGlvbl9sZW4gPSBzLT5sZW5ndGggKiAxNjsKPiAr CQlpZiAoc2VjdGlvbl9sZW4gPiByZW1haW5pbmcpIHsKPiArCQkJcHJfZGVidWcoIlRoZSBzZWN0 aW9uIGlzIGludmFsaWQuXG4iKTsKClRoaXMgZGVidWcgbWVzc2FnZSBpcyBub3QgdXNlZnVsLCBp dCBjb3VsZCBtZW50aW9uIHRoZSBzZWN0aW9uLCBhbmQgYXQKbGVhc3QgY29udGFpbiAiT05GSSIg aW4gaXQuIEJ1dCBzaW5jZSB5b3UgaGF2ZSBhY2Nlc3MgdG8gYSBuYW5kX2NoaXAsIGl0CmlzIGFs c28gcHJvYmFibHkgYmV0dGVyIHRvIHVzZSBkZXZfZGJnIGhlcmUuCgo+ICsJCQlnb3RvIGV4dF9v dXQ7Cj4gKwkJfQo+ICsKPiArCQlpZiAocy0+dHlwZSA9PSBPTkZJX1NFQ1RJT05fVFlQRV8yKSB7 Cj4gKwkJCWlmIChzZWN0aW9uX2xlbiA8IHNpemVvZigqZWNjKSkgewo+ICsJCQkJcHJfZGVidWco IlRoZSBFQ0Mgc2VjdGlvbiBpcwo+IGludmFsaWQuXG4iKTsKClNhbWUuCgo+ICsJCQkJZ290byBl eHRfb3V0Owo+ICsJCQl9Cj4gIAkJCWJyZWFrOwo+IC0JCWN1cnNvciArPSBzLT5sZW5ndGggKiAx NjsKPiArCQl9CgpcbgoKPiArCQljdXJzb3IgKz0gc2VjdGlvbl9sZW47Cj4gKwkJcmVtYWluaW5n IC09IHNlY3Rpb25fbGVuOwo+ICAJfQo+ICAJaWYgKGkgPT0gT05GSV9FWFRfU0VDVElPTl9NQVgp IHsKPiAgCQlwcl9kZWJ1ZygiV2UgY2FuIG5vdCBmaW5kIHRoZSBFQ0Mgc2VjdGlvbi5cbiIpOwoK Q2hhbmNlcyBhcmUgdGhpcyB3aWxsIG5ldmVyIGhhcHBlbiwgYmVjYXVzZSBpdCBpcyBoYXJkd2Fy ZSBoYXJkIHRvCnRhbXBlciB3aXRoLCBjb3ZlcmVkIGJ5IGFuIGluaXRpYWwgQ1JDLCBhbmQgaWYg dGhlIG1hbnVmYWN0dXJlcnMgbWVzcyB1cApzbyBiYWRseSB0aGVpciB0YWJsZXMgdGhlIGNoaXBz IHdvbid0IGJlIG1hbnVmYWN0dXJlZCBhbnl3YXkuCgpCdXQsIGhlaCwgdGhlIGNvc3Qgb2YgdGhp cyBpcyB0b2xlcmFibGUuIE5ldmVydGhlbGVzcywgYSB2MiBpcyBleHBlY3RlZC4KClRoYW5rcywK TWlxdcOobAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCkxpbnV4IE1URCBkaXNjdXNzaW9uIG1haWxpbmcgbGlzdApodHRwOi8vbGlzdHMuaW5m cmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW10ZC8K