kernel: remove support for kernel 4.19

[openwrt/openwrt.git] / target / linux / generic / backport-4.19 / 101-arm-cns3xxx-use-actual-size-reads-for-PCIe.patch

diff --git a/target/linux/generic/backport-4.19/101-arm-cns3xxx-use-actual-size-reads-for-PCIe.patch b/target/linux/generic/backport-4.19/101-arm-cns3xxx-use-actual-size-reads-for-PCIe.patch
deleted file mode 100644 (file)
index 2b33843..0000000
--- a/target/linux/generic/backport-4.19/101-arm-cns3xxx-use-actual-size-reads-for-PCIe.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-From 4cc30de79d293f1e8c5f50ae3a9c005def9564a0 Mon Sep 17 00:00:00 2001
-From: Koen Vandeputte <koen.vandeputte@ncentric.com>
-Date: Mon, 7 Jan 2019 14:14:27 +0100
-Subject: [PATCH 2/2] arm: cns3xxx: use actual size reads for PCIe
-
-commit 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
-reimplemented cns3xxx_pci_read_config() using pci_generic_config_read32(),
-which preserved the property of only doing 32-bit reads.
-
-It also replaced cns3xxx_pci_write_config() with pci_generic_config_write(),
-so it changed writes from always being 32 bits to being the actual size,
-which works just fine.
-
-Due to:
-- The documentation does not mention that only 32 bit access is allowed.
-- Writes are already executed using the actual size
-- Extensive testing shows that 8b, 16b and 32b reads work as intended
-
-It makes perfectly sense to also swap 32 bit reading in favor of actual size.
-
-Fixes: 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
-Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
-Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
-CC: Arnd Bergmann <arnd@arndb.de>
-CC: Krzysztof Halasa <khalasa@piap.pl>
-CC: Olof Johansson <olof@lixom.net>
-CC: Robin Leblon <robin.leblon@ncentric.com>
-CC: Rob Herring <robh@kernel.org>
-CC: Russell King <linux@armlinux.org.uk>
-CC: Tim Harvey <tharvey@gateworks.com>
-CC: stable@vger.kernel.org # v4.0+
----
- arch/arm/mach-cns3xxx/pcie.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/arch/arm/mach-cns3xxx/pcie.c
-+++ b/arch/arm/mach-cns3xxx/pcie.c
-@@ -93,7 +93,7 @@ static int cns3xxx_pci_read_config(struc
-       u32 mask = (0x1ull << (size * 8)) - 1;
-       int shift = (where % 4) * 8;
- 
--      ret = pci_generic_config_read32(bus, devfn, where, size, val);
-+      ret = pci_generic_config_read(bus, devfn, where, size, val);
- 
-       if (ret == PCIBIOS_SUCCESSFUL && !bus->number && !devfn &&
-           (where & 0xffc) == PCI_CLASS_REVISION)