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Wed, 09 Oct 2024 10:47:23 -0700 (PDT) Received: from fan ([50.205.20.42]) by smtp.gmail.com with ESMTPSA id 00721157ae682-6e2d93f7d31sm19219847b3.135.2024.10.09.10.47.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Oct 2024 10:47:23 -0700 (PDT) From: Fan Ni X-Google-Original-From: Fan Ni Date: Wed, 9 Oct 2024 10:47:20 -0700 To: Ira Weiny Cc: Dave Jiang , Jonathan Cameron , Navneet Singh , Jonathan Corbet , Andrew Morton , Dan Williams , Davidlohr Bueso , Alison Schofield , Vishal Verma , linux-btrfs@vger.kernel.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, nvdimm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 06/28] cxl/pci: Delay event buffer allocation Message-ID: References: <20241007-dcd-type2-upstream-v4-0-c261ee6eeded@intel.com> <20241007-dcd-type2-upstream-v4-6-c261ee6eeded@intel.com> Precedence: bulk X-Mailing-List: linux-btrfs@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: <20241007-dcd-type2-upstream-v4-6-c261ee6eeded@intel.com> On Mon, Oct 07, 2024 at 06:16:12PM -0500, Ira Weiny wrote: > The event buffer does not need to be allocated if something has failed in > setting up event irq's. > > In prep for adjusting event configuration for DCD events move the buffer > allocation to the end of the event configuration. > > Reviewed-by: Davidlohr Bueso > Reviewed-by: Dave Jiang > Reviewed-by: Jonathan Cameron > Signed-off-by: Ira Weiny > Reviewed-by: Fan Ni > --- > Changes: > [iweiny: keep tags for early simple patch] > [Davidlohr, Jonathan, djiang: move to beginning of series] > [Dave feel free to pick this up if you like] > --- > drivers/cxl/pci.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c > index 37164174b5fb..0ccd6fd98b9d 100644 > --- a/drivers/cxl/pci.c > +++ b/drivers/cxl/pci.c > @@ -764,10 +764,6 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge, > return 0; > } > > - rc = cxl_mem_alloc_event_buf(mds); > - if (rc) > - return rc; > - > rc = cxl_event_get_int_policy(mds, &policy); > if (rc) > return rc; > @@ -781,6 +777,10 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge, > return -EBUSY; > } > > + rc = cxl_mem_alloc_event_buf(mds); > + if (rc) > + return rc; > + > rc = cxl_event_irqsetup(mds); > if (rc) > return rc; > > -- > 2.46.0 > -- Fan Ni