From: Koichiro Den <den@valinux.co.jp>
To: "Frank Li" <Frank.Li@kernel.org>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Kishon Vijay Abraham I" <kishon@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 v6 3/8] PCI: endpoint: pci-epf-vntb: Move epf_ntb_is_bar_used() up
Date: Tue, 20 Oct 2026 14:49:43 +0900 [thread overview]
Message-ID: <20261020054948.1218370-4-den@valinux.co.jp> (raw)
In-Reply-To: <20261020054948.1218370-1-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 since v4:
- 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 f77e28f2fe96..1a0ce31e680c 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -244,6 +244,26 @@ static int epf_ntb_set_link_enabled(struct epf_ntb *ntb, bool enabled)
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
@@ -906,26 +926,6 @@ 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
--
2.54.0
next prev parent reply other threads:[~2026-10-20 5:50 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-20 5:49 [PATCH v6 0/8] PCI: endpoint: Remote DMA support via vNTB Koichiro Den
2026-10-20 5:49 ` [PATCH v6 1/8] PCI: endpoint: Add DMA auxiliary resource metadata Koichiro Den
2026-10-20 5:49 ` [PATCH v6 2/8] PCI: dwc: Expose endpoint DMA resources Koichiro Den
2026-10-20 5:49 ` Koichiro Den [this message]
2026-10-20 5:49 ` [PATCH v6 4/8] PCI: endpoint: Add pci-epf-ntb.h for the shared NTB control layout Koichiro Den
2026-10-20 5:49 ` [PATCH v6 5/8] PCI: endpoint: pci-epf-vntb: Export endpoint DMA channels Koichiro Den
2026-10-20 17:00 ` Frank Li
2026-10-20 5:49 ` [PATCH v6 6/8] NTB: ntb_hw_epf: Discover vNTB-embedded DMA Koichiro Den
2026-10-20 17:03 ` Frank Li
2026-10-20 5:49 ` [PATCH v6 7/8] PCI/NTB: endpoint: Allow DMA and MW to share a BAR Koichiro Den
2026-10-20 17:11 ` Frank Li
2026-10-21 1:39 ` Koichiro Den
2026-10-20 5:49 ` [PATCH v6 8/8] Documentation: PCI: endpoint: Document vNTB DMA export Koichiro Den
2026-10-20 18:49 ` Frank Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261020054948.1218370-4-den@valinux.co.jp \
--to=den@valinux.co.jp \
--cc=Frank.Li@kernel.org \
--cc=allenbh@gmail.com \
--cc=bhelgaas@google.com \
--cc=cassel@kernel.org \
--cc=corbet@lwn.net \
--cc=dave.jiang@intel.com \
--cc=jbrunet@baylibre.com \
--cc=jdmason@kudzu.us \
--cc=jingoohan1@gmail.com \
--cc=kishon@kernel.org \
--cc=kwilczynski@kernel.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=mani@kernel.org \
--cc=ntb@lists.linux.dev \
--cc=rdunlap@infradead.org \
--cc=robh@kernel.org \
--cc=skhan@linuxfoundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®