5.4-stable review patch. If anyone has any objections, please let me know.
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From: Nikolay Kuratov kniv@yandex-team.ru
commit 80a1e7b83bb1834b5568a3872e64c05795d88f31 upstream.
It is done everywhere in cxgb4 code, e.g. in is_filter_exact_match() There is no reason it should not be done here
Found by Linux Verification Center (linuxtesting.org) with SVACE
Signed-off-by: Nikolay Kuratov kniv@yandex-team.ru Cc: stable@vger.kernel.org Fixes: 12b276fbf6e0 ("cxgb4: add support to create hash filters") Reviewed-by: Simon Horman horms@kernel.org Reviewed-by: Jacob Keller jacob.e.keller@intel.com Link: https://patch.msgid.link/20240819075408.92378-1-kniv@yandex-team.ru Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c @@ -969,7 +969,8 @@ static u64 hash_filter_ntuple(struct ch_ * in the Compressed Filter Tuple. */ if (tp->vlan_shift >= 0 && fs->mask.ivlan) - ntuple |= (FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift; + ntuple |= (u64)(FT_VLAN_VLD_F | + fs->val.ivlan) << tp->vlan_shift;
if (tp->port_shift >= 0 && fs->mask.iport) ntuple |= (u64)fs->val.iport << tp->port_shift;