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Thu, 22 Jan 2026 22:23:24 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20260122133633.79792-1-tianwentong2000@gmail.com> <5961c2655b49a7d384140c33d6897e53f89cb5fe.camel@intel.com> In-Reply-To: <5961c2655b49a7d384140c33d6897e53f89cb5fe.camel@intel.com> From: TwT pupupu Date: Fri, 23 Jan 2026 14:23:13 +0800 X-Gm-Features: AZwV_QgqsSas1GY0YO7VHpwDp1Q8NmEsEQKa1FNvxIJomShoSzfv2IK9DYrJyu0 Message-ID: Subject: Re: [PATCH v2] x86/sgx: use vm_flags_t for vm_prot_bits To: "Huang, Kai" Cc: "jarkko@kernel.org" , "dave.hansen@linux.intel.com" , "linux-sgx@vger.kernel.org" , "linux-mm@kvack.org" , "mingo@redhat.com" , "tglx@kernel.org" , "linux-kernel@vger.kernel.org" , "bp@alien8.de" , "x86@kernel.org" Content-Type: text/plain; charset="UTF-8" Sorry about that, I'll make sure to reply to the list. On Thu, Jan 23, 2026 at 4:57 AM Huang, Kai wrote: > Hmm I was actually just pointing out, but not suggesting, since I am not > sure (honestly). Sorry for the misunderstanding. > With vm_flags_t I think "theoretically" it could stop being integer type > someday. But I guess the advantage is when someone does that that can > trigger build error here (so that we can be aware) which perhaps isn't a > bad thing? You're right, the build error would be a useful early warning if vm_flags_t ever becomes incompatible. I'm fine either way, let me know if you'd prefer keeping unsigned long and I'll send a v3.