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bh=KrVx7jihaMo4JfVPFc6GDwNKRrjQQHnDzJIXkqNJIFg=; b=2Tx1mKPqr6MGr+MBrfMLLJ7EKQyPlAHd+lPXQZazym6imMuJ10BcFwZxJ3Tkdz4VOmXNLl fqbziwHYlYvdSeJn99Qj3FsRy9ciSZwNxpNUVTYNdtBLaWRk++Ji2j3HvP7fO4hdJBPSZW 1HWLavfhPgrYou6npZxg0jcOwPUuxa/eKtL1BPcodUfuEu7aOAHgPmTsxBHm3NFdHmBYo8 zoUb0sGSk/Whv5/D3OC6A4bfoRFLjd6jnoZBJmJs/STJIO66Ud7kxgvqFfyeOWc7oMIlPy 30Hdqch5+DaKmbe6L4E/VP09lKdFP2wiOm2awo2HDAw84feMgnaz3f69IZFyLg== From: Miquel Raynal To: Cc: , , , , , , , , , , , Subject: Re: [PATCH v3 17/27] mtd: spi-nor: debugfs: Add locking support In-Reply-To: (Takahiro Kuwano's message of "Thu, 2 Apr 2026 05:40:55 +0000") References: <20260317-winbond-v6-18-rc1-spi-nor-swp-v3-0-2ca9ea4e7b9b@bootlin.com> <20260317-winbond-v6-18-rc1-spi-nor-swp-v3-17-2ca9ea4e7b9b@bootlin.com> User-Agent: mu4e 1.12.7; emacs 30.2 Date: Fri, 03 Apr 2026 18:06:33 +0200 Message-ID: <87a4vk58qe.fsf@bootlin.com> MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260403_090648_803125_82A5A1D4 X-CRM114-Status: GOOD ( 12.08 ) 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 SGkgVGFrYWhpcm8sCgo+PiArdTY0IHNwaV9ub3JfZ2V0X21pbl9wcm90X2xlbmd0aF9zcihzdHJ1 Y3Qgc3BpX25vciAqbm9yKTsKPj4gK3ZvaWQgc3BpX25vcl9nZXRfbG9ja2VkX3JhbmdlX3NyKHN0 cnVjdCBzcGlfbm9yICpub3IsIGNvbnN0IHU4ICpzciwgbG9mZl90ICpvZnMsIHU2NCAqbGVuKTsK Pj4gK2Jvb2wgc3BpX25vcl9pc19sb2NrZWRfc3Ioc3RydWN0IHNwaV9ub3IgKm5vciwgbG9mZl90 IG9mcywgdTY0IGxlbiwgY29uc3QgdTggKnNyKTsKPj4gKwo+Cj4gSXQgd291bGQgYmUgYmV0dGVy IHRvIGhhdmUgZ2VuZXJpYyBoZWxwZXIgZnVuY3Rpb25zIHJhdGhlciB0aGFuIHVzaW5nIFNSLWJh c2VkCj4gZnVuY3Rpb25zIGRpcmVjdGx5LiBUaGUgbG9ja2luZ19vcHMgaXMgdmVuZG9yL2NoaXAg c3BlY2lmaWMgYW5kIGNhbiBwcm92aWRlCj4gb3RoZXIgbG9ja2luZyBtZWNoYW5pc20gdGhhbiBT Ui1iYXNlZCBibG9jayBwcm90ZWN0aW9uLiBGb3IgaW5zdGFuY2UsIEluZmluZW9uLAo+IE1pY3Jv biwgTWFjcm9uaXggKGFuZCBtYXliZSBvdGhlciB2ZW5kb3JzKSBvZmZlciBwcm90ZWN0aW9uIG1l Y2hhbmlzbXMgdGhhdCBjYW4KPiBwcm90ZWN0IHNlY3RvcnMgaW5kaXZpZHVhbGx5IHdpdGggdm9s YXRpbGUgb3Igbm9uLXZvbGF0aWxlIG1hbm5lci4KCkkgZ2V0IHdoYXQgeW91IG1lYW4sIHRoYW5r cyBmb3IgcG9pbnRpbmcgdGhpcyBvdXQuIFVuZm9ydHVuYXRlbHkgaXQncwpub3QgdGhhdCBzdHJh aWdodGZvcndhcmQuCgpBcyBvZiB0b2RheSwgdGhlcmUgYXJlIHRoZSAiZGVmYXVsdCIgbG9ja2lu ZyBvcHMgKFNSIGJhc2VkKSBhbmQgYSBmZXcKb3RoZXJzLCBjaGlwIHNwZWNpZmljLiBGb3IgZGVi dWdnaW5nIHB1cnBvc2VzLCB0aGVzZSAib3RoZXIiIG9wcyBkbyBub3QKcHJvdmlkZSBhbnkga2lu ZCBvZiB1c2VmdWwgZmVlZGJhY2sgcmVnYXJkaW5nIHdoYXQgaGFzIGFjdHVhbGx5IGJlZW4KbG9j a2VkLiBPbmx5IFNSIGJhc2VkIGNoaXBzIHByb3ZpZGUgdGhpcywgaXQgaXMgdXNlZnVsLCBJIHdh bnQgdG8gdXNlIGl0LgoKU28gSSdtIGdvaW5nIHRvIGV4cG9zZSBhIG5ldyBib29sZWFuIHRvIGZp bHRlciBvdXQgd2hldGhlciB3ZSBoYXZlCmxvY2tpbmcgc3VwcG9ydCAqYW5kKiBpZiB5ZXMsIHdo ZXRoZXIgd2UgY2FuIHVzZSBTUiBiYXNlZCBmdW5jdGlvbnMsIHRoaXMKc2hvdWxkIGFsc28gYWRk cmVzcyB0aGlzIGNvbmNlcm46Cgo+IERvbid0IHdlIG5lZWQgdG8gY2hlY2sgJ1NOT1JfRl9IQVNf TE9DSycgZmxhZyBoZXJlPwoKV2Ugd2lsbCBzdGlsbCBuZWVkIHRvIGV4cG9zZSB0aGUgU1Igc3Bl Y2lmaWMgaGVscGVycywgdGhvdWdoLCBidXQgYXQKbGVhc3Qgd2Ugd2lsbCBubyBsb25nZXIgZ2V0 IGluY29uc2lzdGVuY2llcyB3aXRoIGNoaXBzIG5vdCBmZWF0dXJpbmcgdGhlCmRlZmF1bHQgU1Ig YXBwcm9hY2guCgo+PiArICAgICAgIHNlcV9wdXRzKHMsICJcbmxvY2tlZCBzZWN0b3JzXG4iKTsK Pj4gKyAgICAgICBzZXFfcHV0cyhzLCAiIHJlZ2lvbiAoaW4gaGV4KSAgIHwgc3RhdHVzICAgfCAj YmxvY2tzXG4iKTsKPj4gKyAgICAgICBzZXFfcHV0cyhzLCAiIC0tLS0tLS0tLS0tLS0tLS0tLSst LS0tLS0tLS0tKy0tLS0tLS0tXG4iKTsKPj4gKwo+PiArICAgICAgIHNwaV9ub3JfZ2V0X2xvY2tl ZF9yYW5nZV9zcihub3IsIG5vci0+ZGZzX3NyX2NhY2hlLCAmbG9ja19zdGFydCwgJmxvY2tfbGVu Z3RoKTsKPj4gKyAgICAgICBpZiAoIWxvY2tfbGVuZ3RoIHx8IGxvY2tfbGVuZ3RoID09IHBhcmFt cy0+c2l6ZSkgewo+PiArICAgICAgICAgICAgICAgc2VxX3ByaW50ZihzLCAiICUwOGxseC0lMDhs bHggfCAlcyB8ICVsbHVcbiIsIDBVTEwsIHBhcmFtcy0+c2l6ZSAtIDEsCj4+ICsgICAgICAgICAg ICAgICAgICAgICAgICAgIGxvY2tfbGVuZ3RoID8gIiAgbG9ja2VkIiA6ICJ1bmxvY2tlZCIsIHBh cmFtcy0+c2l6ZSAvIG1pbl9wcm90X2xlbik7Cj4KPiBkaXZfdTY0KCkgaXMgbmVlZGVkLiAKPiBJ IGdvdCB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBfX2FlYWJpX3VsZGl2bW9kJyBmb3IgbXkgMzIt Yml0IEFSTSBwbGF0Zm9ybS4KPiBTYW1lIGZvciBmb2xsb3dpbmcgZm91ciBzZXFfcHJpbnRmKCku CgpHb29kIGNhdGNoLCBJIHdpbGwgZml4IHRoaXMgdG9vLgoKVGhhbmtzLApNaXF1w6hsCgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXgg TVREIGRpc2N1c3Npb24gbWFpbGluZyBsaXN0Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8vbGludXgtbXRkLwo=