diff options
| author | Stefan Agner <[email protected]> | 2019-07-26 16:40:07 +0200 |
|---|---|---|
| committer | Lorenzo Pieralisi <[email protected]> | 2019-08-15 11:51:37 +0100 |
| commit | 075af61c19cdc32b94fd697c610c9a07fa21866e (patch) | |
| tree | 79a48733d44265c5f12887a4e9fc8a7d463ce47f /net/lapb/lapb_out.c | |
| parent | 5f9e832c137075045d15cd6899ab0505cfb2ca4b (diff) | |
PCI: imx6: Limit DBI register length
Define the length of the DBI registers and limit config space to its
length. This makes sure that the kernel does not access registers
beyond that point, avoiding the following abort on a i.MX 6Quad:
# cat /sys/devices/soc0/soc/1ffc000.pcie/pci0000\:00/0000\:00\:00.0/config
[ 100.021433] Unhandled fault: imprecise external abort (0x1406) at 0xb6ea7000
...
[ 100.056423] PC is at dw_pcie_read+0x50/0x84
[ 100.060790] LR is at dw_pcie_rd_own_conf+0x44/0x48
...
Signed-off-by: Stefan Agner <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Lucas Stach <[email protected]>
Diffstat (limited to 'net/lapb/lapb_out.c')
0 files changed, 0 insertions, 0 deletions