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Date: Mon, 19 Apr 2021 15:26:36 +0000 From: David Laight <David.Laight@...LAB.COM> To: 'Andy Lutomirski' <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de> CC: Kees Cook <keescook@...omium.org>, Borislav Petkov <bp@...en8.de>, "Sami Tolvanen" <samitolvanen@...gle.com>, X86 ML <x86@...nel.org>, Josh Poimboeuf <jpoimboe@...hat.com>, Peter Zijlstra <peterz@...radead.org>, "Nathan Chancellor" <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Sedat Dilek <sedat.dilek@...il.com>, "linux-hardening@...r.kernel.org" <linux-hardening@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, clang-built-linux <clang-built-linux@...glegroups.com> Subject: RE: [PATCH 05/15] x86: Implement function_nocfi From: Andy Lutomirski > Sent: 18 April 2021 01:12 .. > Slightly more complicated: > > struct opaque_symbol; > extern struct opaque_symbol entry_SYSCALL_64; > > The opaque_symbol variant avoids any possible confusion over the weird > status of arrays in C, and it's hard to misuse, since struct > opaque_symbol is an incomplete type. Maybe: s/opaque_symbol/entry_SYSCALL_64/ David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
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