From d170eb69d40e9e5fccb8d57edbbacb97427dcf1c Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Wed, 30 Oct 2019 09:01:52 -0700 Subject: 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 Reviewed-by: Ido Schimmel Tested-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') 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; -- cgit v1.2.3-59-g8ed1b