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([2a02:810d:4b3f:de78:642:1aff:fe31:a19f]) by smtp.gmail.com with ESMTPSA id z9-20020a17090665c900b0093fa8c2e877sm5158255ejn.80.2023.04.03.18.27.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Apr 2023 18:27:57 -0700 (PDT) From: Danilo Krummrich To: airlied@gmail.com, daniel@ffwll.ch, tzimmermann@suse.de, mripard@kernel.org, corbet@lwn.net, christian.koenig@amd.com, bskeggs@redhat.com, Liam.Howlett@oracle.com, matthew.brost@intel.com, boris.brezillon@collabora.com, alexdeucher@gmail.com, ogabbay@kernel.org, bagasdotme@gmail.com, willy@infradead.org, jason@jlekstrand.net Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Danilo Krummrich Subject: [PATCH drm-next v3 03/15] maple_tree: split up MA_STATE() macro Date: Tue, 4 Apr 2023 03:27:29 +0200 Message-Id: <20230404012741.116502-4-dakr@redhat.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230404012741.116502-1-dakr@redhat.com> References: <20230404012741.116502-1-dakr@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 2A37CA000E X-Stat-Signature: dsj9i951f6bbb9xexrs8m7aq57pio9ty X-Rspam-User: X-HE-Tag: 1680571683-21711 X-HE-Meta: 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 U1pLr1oM Od45FjSwTIHJHfuSAMcf4fT1BWSteuFVmEqBuyxOcG1AkTSDN6BXaWVfWqzKe/dA83I7auogfeP1C/dg/1jl2D6oHmymupj065WrPzv50C45fx/Ml8XJw8ic3/27hDsySfRpFvhYQ2MP1hkYOs/ZMYGeY/e+MHPD7V8Altge1wQM9d/w8Bi35dvODyvQO3XlFlGvsVBUXolRdYvs8uJdhyPGcp1Ct2EOLGtllqnQtNawhZUrzofcj3YwVIu5vlLWRwc/814JTbdQf1Kj0TtNYwdmp7VA6C82YXz8rcU26hItfvzZJ9VKKmbLqwZTWk15RIJCe658wGMgGbk9hU5thNO6HLZbqwKlYvrl07TuB0WpKLpo72kWlOwpG1jug8gGHw2KUQbN8YxycqacwaseqilxZAHoj91uoiusDEkuhnZXCd0oc9mR+9eQ/Rqsmn66xdy/24wCVpwsNNqY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Split up the MA_STATE() macro such that components using the maple tree can easily inherit from struct ma_state and build custom tree walk macros to hide their internals from users. Example: struct sample_iterator { struct ma_state mas; struct sample_mgr *mgr; }; \#define SAMPLE_ITERATOR(name, __mgr, start) \ struct sample_iterator name = { \ .mas = MA_STATE_INIT(&(__mgr)->mt, start, 0), \ .mgr = __mgr, \ } \#define sample_iter_for_each_range(it__, entry__, end__) \ mas_for_each(&(it__).mas, entry__, end__) -- struct sample *sample; SAMPLE_ITERATOR(si, min); sample_iter_for_each_range(&si, sample, max) { frob(mgr, sample); } Signed-off-by: Danilo Krummrich --- include/linux/maple_tree.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h index 1fadb5f5978b..87d55334f1c2 100644 --- a/include/linux/maple_tree.h +++ b/include/linux/maple_tree.h @@ -423,8 +423,8 @@ struct ma_wr_state { #define MA_ERROR(err) \ ((struct maple_enode *)(((unsigned long)err << 2) | 2UL)) -#define MA_STATE(name, mt, first, end) \ - struct ma_state name = { \ +#define MA_STATE_INIT(mt, first, end) \ + { \ .tree = mt, \ .index = first, \ .last = end, \ @@ -435,6 +435,9 @@ struct ma_wr_state { .mas_flags = 0, \ } +#define MA_STATE(name, mt, first, end) \ + struct ma_state name = MA_STATE_INIT(mt, first, end) + #define MA_WR_STATE(name, ma_state, wr_entry) \ struct ma_wr_state name = { \ .mas = ma_state, \ -- 2.39.2