diff options
| author | Nathan Chancellor | 2019-10-30 09:01:52 -0700 |
|---|---|---|
| committer | David S. Miller | 2019-10-31 13:55:34 -0700 |
| commit | d170eb69d40e9e5fccb8d57edbbacb97427dcf1c (patch) | |
| tree | defd1ea6e686d5f7f9ccce352b0713d280600628 /drivers/net | |
| parent | 72919b6b3b3298a0c083cd3bf2748ee4dd31db58 (diff) | |
mlxsw: Fix 64-bit division in mlxsw_sp_sb_prs_init
When building for 32-bit ARM, there is a link time error because of a
64-bit division:
ld.lld: error: undefined symbol: __aeabi_uldivmod
>>> referenced by spectrum_buffers.c
>>> net/ethernet/mellanox/mlxsw/spectrum_buffers.o:(mlxsw_sp_buffers_init) in archive drivers/built-in.a
>>> did you mean: __aeabi_uidivmod
>>> defined in: arch/arm/lib/lib.a(lib1funcs.o
Avoid this by using div_u64, which is designed to avoid this problem.
Fixes: bc9f6e94bcb5 ("mlxsw: spectrum_buffers: Calculate the size of the main pool")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c index 33a978af80d6..968f0902e4fe 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c @@ -470,7 +470,7 @@ static int mlxsw_sp_sb_prs_init(struct mlxsw_sp *mlxsw_sp, size_t prs_len) { /* Round down, unlike mlxsw_sp_bytes_cells(). */ - u32 sb_cells = mlxsw_sp->sb->sb_size / mlxsw_sp->sb->cell_size; + u32 sb_cells = div_u64(mlxsw_sp->sb->sb_size, mlxsw_sp->sb->cell_size); u32 rest_cells[2] = {sb_cells, sb_cells}; int i; int err; |