From: Koichiro Den <den@valinux.co.jp>
To: "Manivannan Sadhasivam" <mani@kernel.org>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Kishon Vijay Abraham I" <kishon@kernel.org>,
"Frank Li" <Frank.Li@kernel.org>, "Jon Mason" <jdmason@kudzu.us>,
"Dave Jiang" <dave.jiang@intel.com>,
"Allen Hubbe" <allenbh@gmail.com>,
"Niklas Cassel" <cassel@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>,
Randy Dunlap <rdunlap@infradead.org>,
Jingoo Han <jingoohan1@gmail.com>,
Lorenzo Pieralisi <lpieralisi@kernel.org>,
Rob Herring <robh@kernel.org>,
Jerome Brunet <jbrunet@baylibre.com>,
linux-pci@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, ntb@lists.linux.dev
Subject: [PATCH v3 3/7] PCI: endpoint: pci-epf-vntb: Move epf_ntb_is_bar_used() up
Date: Tue, 1 Sep 2026 03:26:53 +0900 [thread overview]
Message-ID: <20260831182657.329614-4-den@valinux.co.jp> (raw)
In-Reply-To: <20260831182657.329614-1-den@valinux.co.jp>
Move epf_ntb_is_bar_used() up so later BAR selection code can call it
without a forward declaration. No functional change.
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Koichiro Den <den@valinux.co.jp>
---
Changes in v3:
- No changes.
drivers/pci/endpoint/functions/pci-epf-vntb.c | 40 +++++++++----------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index c3caec927d74..d12d134ce553 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -199,6 +199,26 @@ static int epf_ntb_link_up(struct epf_ntb *ntb, bool link_up)
return 0;
}
+/**
+ * epf_ntb_is_bar_used() - Check if a bar is used in the ntb configuration
+ * @ntb: NTB device that facilitates communication between HOST and VHOST
+ * @barno: Checked bar number
+ *
+ * Returns: true if used, false if free.
+ */
+static bool epf_ntb_is_bar_used(struct epf_ntb *ntb,
+ enum pci_barno barno)
+{
+ int i;
+
+ for (i = 0; i < VNTB_BAR_NUM; i++) {
+ if (ntb->epf_ntb_bar[i] == barno)
+ return true;
+ }
+
+ return false;
+}
+
/**
* epf_ntb_configure_mw() - Configure the Outbound Address Space for VHOST
* to access the memory window of HOST
@@ -830,26 +850,6 @@ static void epf_ntb_mw_bar_clear(struct epf_ntb *ntb, int num_mws)
}
}
-/**
- * epf_ntb_is_bar_used() - Check if a bar is used in the ntb configuration
- * @ntb: NTB device that facilitates communication between HOST and VHOST
- * @barno: Checked bar number
- *
- * Returns: true if used, false if free.
- */
-static bool epf_ntb_is_bar_used(struct epf_ntb *ntb,
- enum pci_barno barno)
-{
- int i;
-
- for (i = 0; i < VNTB_BAR_NUM; i++) {
- if (ntb->epf_ntb_bar[i] == barno)
- return true;
- }
-
- return false;
-}
-
/**
* epf_ntb_find_bar() - Assign BAR number when no configuration is provided
* @ntb: NTB device that facilitates communication between HOST and VHOST
--
2.51.0
next prev parent reply other threads:[~2026-08-31 18:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-31 18:26 [PATCH v3 0/7] PCI: endpoint: Remote DMA support via vNTB Koichiro Den
2026-08-31 18:26 ` [PATCH v3 1/7] PCI: endpoint: Add DMA auxiliary resource metadata Koichiro Den
2026-08-31 18:26 ` [PATCH v3 2/7] PCI: dwc: Expose endpoint DMA resources Koichiro Den
2026-08-31 18:26 ` Koichiro Den [this message]
2026-08-31 18:26 ` [PATCH v3 4/7] PCI: endpoint: pci-epf-vntb: Export endpoint DMA channels Koichiro Den
2026-09-03 21:20 ` Frank Li
2026-09-04 1:34 ` Koichiro Den
2026-08-31 18:26 ` [PATCH v3 5/7] PCI: endpoint: pci-epf-vntb: Allow DMA and MW to share a BAR Koichiro Den
2026-08-31 18:26 ` [PATCH v3 6/7] NTB: ntb_hw_epf: Discover vNTB-embedded DMA Koichiro Den
2026-08-31 18:26 ` [PATCH v3 7/7] Documentation: PCI: endpoint: Document vNTB DMA export Koichiro Den
2026-09-03 11:43 ` [PATCH v3 0/7] PCI: endpoint: Remote DMA support via vNTB Manivannan Sadhasivam
2026-09-03 15:13 ` Koichiro Den
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