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Thu, 12 Mar 2026 20:35:32 -0700 (PDT) Received: from redhat.com ([209.132.188.88]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2aece7ee5b1sm5475595ad.46.2026.03.12.20.35.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Mar 2026 20:35:30 -0700 (PDT) Date: Fri, 13 Mar 2026 11:35:28 +0800 From: Li Wang To: Yosry Ahmed Cc: Nhat Pham , mkoutny@suse.com, yosryahmed@google.com, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Johannes Weiner , Michal Hocko , Muchun Song , Tejun Heo , Roman Gushchin , Shakeel Butt Subject: Re: [PATCH v2 1/7] selftests/cgroup: skip test_zswap if zswap is globally disabled Message-ID: References: <20260312040627.55257-1-liwang@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Fri, Mar 13, 2026 at 11:23:50AM +0800, Li Wang wrote: > On Thu, Mar 12, 2026 at 07:58:28PM -0700, Yosry Ahmed wrote: > > > Yes, this looks more tidy than open it. I'll go this helper in v3. > > > > > > > > > > > static void check_zswap_enabled(void) > > > > { > > > > char value; > > > > > > read_text() requires string but not char. > > > > I was just illustrating. This should be passed in as &value. That should work? > > Yes, pass it as &value works well. And use sizeof(&value) just get the pointer's size but not the buffer size, so I would recommend: char value[2]. -- Regards, Li Wang