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a=rsa-sha256; c=relaxed/simple; d= opensource.wdc.com; h=content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:subject:to :from; s=dkim; t=1757114755; x=1759706756; bh=xnm/rL7S5sreIfGIwv Gukiv5lCZMGf/j8qxjqCE7hL4=; b=m6JS2rkUQoFOD8mAJbzXHE+nQONbp8IwQ6 wmqV1AyI0gzxneDvTVvMnguOejfzvdIA0WmBflRB4YzvXWJG6xD7e1I/xhiuUDec BO+F7m+AKWy3cCdMPTUvLwi/4UKqukUu2RfebIgQAGYqxLgee4Ad4HJlbe3rf9Sm KQet0NZvyt2/vsVEb+Iltsm+x/cjrnYukINv9we+9UVVDxlRGmlJPIpzFK14rjua KPd1cS4vJyAGJttq2GtNaWOVA51dAELCrKTL0N1C2Cs6G/965RWrEivy8RKUfrNy Gyp9uwMKUM8WH+rp3OuUqIHo2q85Fcr9Q8otgjPuVRDfB4okTlPA== X-Virus-Scanned: amavis at usg-ed-osssrv.wdc.com Received: from usg-ed-osssrv.wdc.com ([127.0.0.1]) by usg-ed-osssrv.wdc.com (usg-ed-osssrv.wdc.com [127.0.0.1]) (amavis, port 10026) with ESMTP id fcgjlACMqVId for ; Fri, 5 Sep 2025 16:25:55 -0700 (PDT) Received: from ros-3.wdc.com (ros-3.wdc.com [10.23.145.79]) by usg-ed-osssrv.wdc.com (Postfix) with ESMTPSA id 4cJXXL6mM2z1SHkR; Fri, 5 Sep 2025 16:25:54 -0700 (PDT) From: Kamaljit Singh To: kbusch@kernel.org, axboe@kernel.dk, hch@lst.de, sagi@grimberg.me, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Cc: cassel@kernel.org, dlemoal@kernel.org, kamaljit.singh1@wdc.com, Kamaljit Singh Subject: [PATCH v2 1/2] nvme-core: add method to check for an I/O controller Date: Fri, 5 Sep 2025 16:25:49 -0700 Message-ID: <20250905232550.1950307-2-kamaljit.singh@opensource.wdc.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250905232550.1950307-1-kamaljit.singh@opensource.wdc.com> References: <20250905232550.1950307-1-kamaljit.singh@opensource.wdc.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250905_162559_416524_08E74999 X-CRM114-Status: GOOD ( 13.21 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Add nvme_is_io_ctrl() to check if the controller is of type I/O controller. Uses negative logic by excluding an administrative controller and a discovery controller. Signed-off-by: Kamaljit Singh --- drivers/nvme/host/core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index d67545bd7abb..fab672e50510 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3167,6 +3167,11 @@ static inline bool nvme_admin_ctrl(struct nvme_ctr= l *ctrl) return ctrl->cntrltype =3D=3D NVME_CTRL_ADMIN; } =20 +static inline bool nvme_is_io_ctrl(struct nvme_ctrl *ctrl) +{ + return !nvme_discovery_ctrl(ctrl) && !nvme_admin_ctrl(ctrl); +} + static bool nvme_validate_cntlid(struct nvme_subsystem *subsys, struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) { --=20 2.43.0