From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from galois.linutronix.de ([2a0a:51c0:0:12e:550::1]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lRVlN-005so2-9n for kexec@lists.infradead.org; Wed, 31 Mar 2021 07:59:43 +0000 From: John Ogness Subject: Re: [PATCH printk v2 2/5] printk: remove safe buffers In-Reply-To: <20210330153512.1182-3-john.ogness@linutronix.de> References: <20210330153512.1182-1-john.ogness@linutronix.de> <20210330153512.1182-3-john.ogness@linutronix.de> Date: Wed, 31 Mar 2021 09:59:39 +0200 Message-ID: <875z17vjmc.fsf@jogness.linutronix.de> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Petr Mladek Cc: Sergey Senozhatsky , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , linux-kernel@vger.kernel.org, Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Eric Biederman , Christophe Leroy , Nicholas Piggin , Alistair Popple , Jordan Niethe , Peter Zijlstra , "Aneesh Kumar K.V" , Andrew Morton , Kees Cook , Tiezhu Yang , Alexey Kardashevskiy , Yue Hu , Rafael Aquini , "Guilherme G. Piccoli" , "Paul E. McKenney" , linuxppc-dev@lists.ozlabs.org, kexec@lists.infradead.org T24gMjAyMS0wMy0zMCwgSm9obiBPZ25lc3MgPGpvaG4ub2duZXNzQGxpbnV0cm9uaXguZGU+IHdy b3RlOgo+IGRpZmYgLS1naXQgYS9rZXJuZWwvcHJpbnRrL3ByaW50ay5jIGIva2VybmVsL3ByaW50 ay9wcmludGsuYwo+IGluZGV4IGU5NzFjMGE5ZWM5ZS4uZjA5MGQ2YTFiMzllIDEwMDY0NAo+IC0t LSBhL2tlcm5lbC9wcmludGsvcHJpbnRrLmMKPiArKysgYi9rZXJuZWwvcHJpbnRrL3ByaW50ay5j Cj4gQEAgLTE3NzIsMTYgKzE3NTksMjEgQEAgc3RhdGljIHN0cnVjdCB0YXNrX3N0cnVjdCAqY29u c29sZV9vd25lcjsKPiAgc3RhdGljIGJvb2wgY29uc29sZV93YWl0ZXI7Cj4gIAo+ICAvKioKPiAt ICogY29uc29sZV9sb2NrX3NwaW5uaW5nX2VuYWJsZSAtIG1hcmsgYmVnaW5uaW5nIG9mIGNvZGUg d2hlcmUgYW5vdGhlcgo+ICsgKiBjb25zb2xlX2xvY2tfc3Bpbm5pbmdfZW5hYmxlX2lycXNhdmUg LSBtYXJrIGJlZ2lubmluZyBvZiBjb2RlIHdoZXJlIGFub3RoZXIKPiAgICoJdGhyZWFkIG1pZ2h0 IHNhZmVseSBidXN5IHdhaXQKPiAgICoKPiAgICogVGhpcyBiYXNpY2FsbHkgY29udmVydHMgY29u c29sZV9sb2NrIGludG8gYSBzcGlubG9jay4gVGhpcyBtYXJrcwo+ICAgKiB0aGUgc2VjdGlvbiB3 aGVyZSB0aGUgY29uc29sZV9sb2NrIG93bmVyIGNhbiBub3Qgc2xlZXAsIGJlY2F1c2UKPiAgICog dGhlcmUgbWF5IGJlIGEgd2FpdGVyIHNwaW5uaW5nIChsaWtlIGEgc3BpbmxvY2spLiBBbHNvIGl0 IG11c3QgYmUKPiAgICogcmVhZHkgdG8gaGFuZCBvdmVyIHRoZSBsb2NrIGF0IHRoZSBlbmQgb2Yg dGhlIHNlY3Rpb24uCj4gKyAqCj4gKyAqIFRoaXMgZGlzYWJsZXMgaW50ZXJydXB0cyBiZWNhdXNl IHRoZSBoYW5kIG92ZXIgdG8gYSB3YWl0ZXIgbXVzdCBub3QgYmUKPiArICogaW50ZXJydXB0ZWQg dW50aWwgdGhlIGhhbmQgb3ZlciBpcyBjb21wbGV0ZWQgKEBjb25zb2xlX3dhaXRlciBpcyBjbGVh cmVkKS4KPiAgICovCj4gLXN0YXRpYyB2b2lkIGNvbnNvbGVfbG9ja19zcGlubmluZ19lbmFibGUo dm9pZCkKPiArc3RhdGljIHZvaWQgY29uc29sZV9sb2NrX3NwaW5uaW5nX2VuYWJsZV9pcnFzYXZl KHVuc2lnbmVkIGxvbmcgKmZsYWdzKQoKSSBtaXNzZWQgdGhlIHByb3RvdHlwZSBjaGFuZ2UgZm9y IHRoZSAhQ09ORklHX1BSSU5USyBjYXNlLCByZXN1bHRpbmcgaW46CgpsaW51eC9rZXJuZWwvcHJp bnRrL3ByaW50ay5jOjI3MDc6MzogZXJyb3I6IGltcGxpY2l0IGRlY2xhcmF0aW9uIG9mIGZ1bmN0 aW9uIOKAmGNvbnNvbGVfbG9ja19zcGlubmluZ19lbmFibGVfaXJxc2F2ZeKAmTsgZGlkIHlvdSBt ZWFuIOKAmGNvbnNvbGVfbG9ja19zcGlubmluZ19lbmFibGXigJk/IFstV2Vycm9yPWltcGxpY2l0 LWZ1bmN0aW9uLWRlY2xhcmF0aW9uXQogICBjb25zb2xlX2xvY2tfc3Bpbm5pbmdfZW5hYmxlX2ly cXNhdmUoJmZsYWdzKTsKICAgXn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+fn5+CiAg IGNvbnNvbGVfbG9ja19zcGlubmluZ19lbmFibGUKCldpbGwgYmUgZml4ZWQgZm9yIHYzLgoKKEkg aGF2ZSBub3cgb2ZmaWNpYWxseSBhZGRlZCAhQ09ORklHX1BSSU5USyB0byBteSBDSSB0ZXN0cy4p CgpKb2huIE9nbmVzcwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18Ka2V4ZWMgbWFpbGluZyBsaXN0CmtleGVjQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDov L2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9rZXhlYwo=