S_SACK            854 drivers/net/ethernet/chelsio/cxgb/regs.h #define V_SACK(x) ((x) << S_SACK)
S_SACK            855 drivers/net/ethernet/chelsio/cxgb/regs.h #define G_SACK(x) (((x) >> S_SACK) & M_SACK)