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Date: Mon, 24 Oct 2022 16:58:58 -0700 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Steven Rostedt <rostedt@...dmis.org> Cc: LKML <linux-kernel@...r.kernel.org>, Peter Zijlstra <peterz@...radead.org>, Kees Cook <keescook@...omium.org>, Dave Hansen <dave.hansen@...el.com>, Sean Christopherson <seanjc@...gle.com>, "x86@...nel.org" <x86@...nel.org> Subject: Re: [PATCH v2] x86/mm: Do not verify W^X at boot up on ftrace trampolines On Mon, Oct 24, 2022 at 3:25 PM Steven Rostedt <rostedt@...dmis.org> wrote: > > From: "Steven Rostedt (Google)" <rostedt@...dmis.org> > > Adding on the kernel command line "ftrace=function" triggered: This one I *really* detest. If we have to have a special case, make it just be the simple "system_state == SYSTEM_BOOTING", don't make it even nastier. Special cases are bad. Making them these kinds of "this is super-magical and special" is even worse. Linus
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