lkml.org 
[lkml]   [2022]   [Jun]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.18 543/879] PCI: rockchip: Fix find_first_zero_bit() limit
    Date
    From: Dan Carpenter <dan.carpenter@oracle.com>

    [ Upstream commit 096950e230b8d83645c7cf408b9f399f58c08b96 ]

    The ep->ob_region_map bitmap is a long and it has BITS_PER_LONG bits.

    Link: https://lore.kernel.org/r/20220315065944.GB13572@kili
    Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
    Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
    Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/pci/controller/pcie-rockchip-ep.c | 3 +--
    1 file changed, 1 insertion(+), 2 deletions(-)

    diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
    index 5fb9ce6e536e..d1a200b93b2b 100644
    --- a/drivers/pci/controller/pcie-rockchip-ep.c
    +++ b/drivers/pci/controller/pcie-rockchip-ep.c
    @@ -264,8 +264,7 @@ static int rockchip_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, u8 vfn,
    struct rockchip_pcie *pcie = &ep->rockchip;
    u32 r;

    - r = find_first_zero_bit(&ep->ob_region_map,
    - sizeof(ep->ob_region_map) * BITS_PER_LONG);
    + r = find_first_zero_bit(&ep->ob_region_map, BITS_PER_LONG);
    /*
    * Region 0 is reserved for configuration space and shouldn't
    * be used elsewhere per TRM, so leave it out.
    --
    2.35.1


    \
     
     \ /
      Last update: 2022-06-08 03:34    [W:3.620 / U:1.036 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site