| Message ID | 1437008399-31544-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/of/address.c b/drivers/of/address.c index 78a7dcb..6906a3f 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -765,7 +765,7 @@ unsigned long __weak pci_address_to_pio(phys_addr_t address) spin_lock(&io_range_lock); list_for_each_entry(res, &io_range_list, list) { if (address >= res->start && address < res->start + res->size) { - addr = res->start - address + offset; + addr = address - res->start + offset; break; } offset += res->size;
This is a note to let you know that I have just added a patch titled of/pci: Fix pci_address_to_pio() conversion of CPU address to I/O port to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue This patch is scheduled to be released in version 3.19.y-ckt4. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.19.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 4c93767522cfa8e0b88c7fb3b9b2aa64557f6165 Mon Sep 17 00:00:00 2001 From: Zhichang Yuan <yuanzhichang@hisilicon.com> Date: Fri, 24 Apr 2015 17:05:09 +0800 Subject: of/pci: Fix pci_address_to_pio() conversion of CPU address to I/O port commit 5dbb4c6167229c8d4f528e8ec26699a7305000a3 upstream. 41f8bba7f555 ("of/pci: Add pci_register_io_range() and pci_pio_to_address()") added support for systems with several I/O ranges described by OF bindings. It modified pci_address_to_pio() look up the io_range for a given CPU physical address, but the conversion was wrong. Fix the conversion of address to I/O port. [bhelgaas: changelog] Fixes: 41f8bba7f555 ("of/pci: Add pci_register_io_range() and pci_pio_to_address()") Signed-off-by: Zhichang Yuan <yuanzhichang@hisilicon.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/of/address.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1