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authorIlan Tayari2017-07-02 09:57:56 +0200
committerSaeed Mahameed2017-07-06 14:13:19 +0200
commit5dfd87b67cd98375896890e01437edefeb45a707 (patch)
treeea4079f547091f9be5add04609db07290b300d8f /drivers/net/ethernet/mellanox/mlx5/core/en_accel
parentnet/mlx5: Add missing include in lib/gid.c (diff)
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net/mlx5: IPSec, Fix 64-bit division on 32-bit builds
Fix warnings when building 386 kernel: >> ERROR: "__udivdi3" [drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.ko] undefined! Fixes: 2ac9cfe78223 ("net/mlx5e: IPSec, Add Innova IPSec offload TX data path") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Ilan Tayari <ilant@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_accel')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
index 4a78aefdf157..7d06c673851a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c
@@ -363,6 +363,7 @@ void mlx5e_ipsec_build_inverse_table(void)
{
u16 mss_inv;
u32 mss;
+ u64 n;
/* Calculate 1/x inverse table for use in GSO data path.
* Using this table, we provide the IPSec accelerator with the value of
@@ -372,7 +373,8 @@ void mlx5e_ipsec_build_inverse_table(void)
*/
mlx5e_ipsec_inverse_table[1] = htons(0xFFFF);
for (mss = 2; mss < MAX_LSO_MSS; mss++) {
- mss_inv = ((1ULL << 32) / mss) >> 16;
+ n = 1ULL << 32;
+ mss_inv = do_div(n, mss) >> 16;
mlx5e_ipsec_inverse_table[mss] = htons(mss_inv);
}
}