From e25203eb2feeb8a123a20b8127ba9673e06c65b2 Mon Sep 17 00:00:00 2001 From: juhosg Date: Tue, 30 Apr 2013 10:44:07 +0000 Subject: linux/3.8: use backported pcibios_get_phb_of_node patches Signed-off-by: Gabor Juhos git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36494 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...__weak-annotation-from-pcibios_get_phb_of.patch | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 target/linux/generic/patches-3.8/031-PCI-Remove-__weak-annotation-from-pcibios_get_phb_of.patch (limited to 'target/linux/generic/patches-3.8/031-PCI-Remove-__weak-annotation-from-pcibios_get_phb_of.patch') diff --git a/target/linux/generic/patches-3.8/031-PCI-Remove-__weak-annotation-from-pcibios_get_phb_of.patch b/target/linux/generic/patches-3.8/031-PCI-Remove-__weak-annotation-from-pcibios_get_phb_of.patch new file mode 100644 index 000000000..ed9777683 --- /dev/null +++ b/target/linux/generic/patches-3.8/031-PCI-Remove-__weak-annotation-from-pcibios_get_phb_of.patch @@ -0,0 +1,40 @@ +From 10629d711ed780470937ecda50d9ffa0e925a4ee Mon Sep 17 00:00:00 2001 +From: Bjorn Helgaas +Date: Wed, 10 Apr 2013 09:56:54 -0600 +Subject: [PATCH 1/2] PCI: Remove __weak annotation from + pcibios_get_phb_of_node decl + +The __weak annotation on the pcibios_get_phb_of_node() declaration +causes *every* definition to be marked "weak." The linker then +selects one based on link order, which may be the wrong one. + +Gabor found that on MIPS, the linker selected the generic implementation +from drivers/pci even though arch/mips supplied a definition without the +__weak annotation: + +$ mipsel-openwrt-linux-readelf -s arch/mips/pci/built-in.o \ + drivers/pci/built-in.o vmlinux.o | grep pcibios_get_phb_of_node + 86: 0000046c 12 FUNC WEAK DEFAULT 2 pcibios_get_phb_of_node + 1430: 00012e2c 104 FUNC WEAK DEFAULT 2 pcibios_get_phb_of_node + 31898: 0017e4ec 104 FUNC WEAK DEFAULT 2 pcibios_get_phb_of_node + +This removes the __weak annotation from the pcibios_get_phb_of_node() +declaration so arch-specific non-weak implementations work reliably. + +Suggested-by: Gabor Juhos +Signed-off-by: Bjorn Helgaas +--- + include/linux/pci.h | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/include/linux/pci.h ++++ b/include/linux/pci.h +@@ -1803,7 +1803,7 @@ extern void pci_set_bus_of_node(struct p + extern void pci_release_bus_of_node(struct pci_bus *bus); + + /* Arch may override this (weak) */ +-extern struct device_node * __weak pcibios_get_phb_of_node(struct pci_bus *bus); ++extern struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus); + + static inline struct device_node * + pci_device_to_OF_node(const struct pci_dev *pdev) -- cgit v1.2.3