target/linux/layerscape/patches-5.4/701-net-0106-sdk_fman-avoid-array-overflow-error-in-fman-port-ini.patch

   1 From 5dc04d9dc9ac5d6eca6f1602a7b1c3b5a61625f4 Mon Sep 17 00:00:00 2001
   2 From: Florinel Iordache <florinel.iordache@nxp.com>
   3 Date: Mon, 4 Feb 2019 09:45:54 +0200
   4 Subject: [PATCH] sdk_fman: avoid array overflow error in fman port init
   5
   6 Perform a verification of external buffer pools used which can cause array
   7 overflow error in port init function SetExtBufferPools() if it was set to
   8 value 1 via fman port API
   9
  10 Signed-off-by: Florinel Iordache <florinel.iordache@nxp.com>
  11 ---
  12  drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/Port/fm_port.c | 3 ++-
  13  1 file changed, 2 insertions(+), 1 deletion(-)
  14
  15 --- a/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/Port/fm_port.c
  16 +++ b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/Port/fm_port.c
  17 @@ -581,7 +581,8 @@ static t_Error SetExtBufferPools(t_FmPor
  18      p_FmPort->rxPoolsParams.numOfPools = p_ExtBufPools->numOfPoolsUsed;
  19      p_FmPort->rxPoolsParams.largestBufSize =
  20              sizesArray[orderedArray[p_ExtBufPools->numOfPoolsUsed - 1]];
  21 -    p_FmPort->rxPoolsParams.secondLargestBufSize =
  22 +    if (p_ExtBufPools->numOfPoolsUsed > 1)
  23 +        p_FmPort->rxPoolsParams.secondLargestBufSize =
  24              sizesArray[orderedArray[p_ExtBufPools->numOfPoolsUsed - 2]];
  25
  26      /* FMBM_RMPD reg. - pool depletion */