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[68.147.8.254]) by smtp.gmail.com with ESMTPSA id d124sm76062pfa.98.2020.05.14.13.40.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 May 2020 13:40:24 -0700 (PDT) From: Mathieu Poirier To: ohad@wizery.com, bjorn.andersson@linaro.org Cc: arnaud.pouliquen@st.com, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 1/2] rpmsg: core: Add wildcard match for name service Date: Thu, 14 May 2020 14:40:21 -0600 Message-Id: <20200514204022.24233-2-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200514204022.24233-1-mathieu.poirier@linaro.org> References: <20200514204022.24233-1-mathieu.poirier@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Adding the capability to supplement the base definition published by an rpmsg_driver with a postfix description so that it is possible for several entity to use the same service. Signed-off-by: Mathieu Poirier Acked-by: Arnaud Pouliquen --- drivers/rpmsg/rpmsg_core.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c index a6361cad608b..5e01e8dede6b 100644 --- a/drivers/rpmsg/rpmsg_core.c +++ b/drivers/rpmsg/rpmsg_core.c @@ -399,7 +399,25 @@ ATTRIBUTE_GROUPS(rpmsg_dev); static inline int rpmsg_id_match(const struct rpmsg_device *rpdev, const struct rpmsg_device_id *id) { - return strncmp(id->name, rpdev->id.name, RPMSG_NAME_SIZE) == 0; + size_t len = min_t(size_t, strlen(id->name), RPMSG_NAME_SIZE); + + /* + * Allow for wildcard matches. For example if rpmsg_driver::id_table + * is: + * + * static struct rpmsg_device_id rpmsg_driver_sample_id_table[] = { + * { .name = "rpmsg-client-sample" }, + * { }, + * } + * + * Then it is possible to support "rpmsg-client-sample*", i.e: + * rpmsg-client-sample + * rpmsg-client-sample_instance0 + * rpmsg-client-sample_instance1 + * ... + * rpmsg-client-sample_instanceX + */ + return strncmp(id->name, rpdev->id.name, len) == 0; } /* match rpmsg channel and rpmsg driver */ -- 2.20.1