linux-kernel - [RFC/PATCH 2/4] PCI: Export PCI ACS and DMA searching functions to modules

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Message-Id: <1558118857-16912-3-git-send-email-isaacm@codeaurora.org>
Date:   Fri, 17 May 2019 11:47:35 -0700
From:   "Isaac J. Manjarres" <isaacm@...eaurora.org>
To:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     "Isaac J. Manjarres" <isaacm@...eaurora.org>, robh+dt@...nel.org,
        frowand.list@...il.com, bhelgaas@...gle.com, joro@...tes.org,
        robin.murphy@....com, will.deacon@....com, kernel-team@...roid.com,
        pratikp@...eaurora.org, lmark@...eaurora.org
Subject: [RFC/PATCH 2/4] PCI: Export PCI ACS and DMA searching functions to modules

IOMMU drivers that can be compiled as modules may
want to use pci_for_each_dma_alias() and pci_request_acs(),
so export those functions.

Signed-off-by: Isaac J. Manjarres <isaacm@...eaurora.org>
---
 drivers/pci/pci.c    | 1 +
 drivers/pci/search.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 766f577..3f354c1 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3124,6 +3124,7 @@ void pci_request_acs(void)
 {
 	pci_acs_enable = 1;
 }
+EXPORT_SYMBOL_GPL(pci_request_acs);
 
 static const char *disable_acs_redir_param;
 
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index 2b5f720..cf9ede9 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -111,6 +111,7 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(pci_for_each_dma_alias);
 
 static struct pci_bus *pci_do_find_bus(struct pci_bus *bus, unsigned char busnr)
 {
-- 
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