target/linux/generic-2.6/patches-2.6.26/950-revert_xt_sctp_simplify.patch

   1 --- a/include/linux/netfilter/xt_sctp.h
   2 +++ b/include/linux/netfilter/xt_sctp.h
   3 @@ -37,54 +37,68 @@
   4
   5  #define SCTP_CHUNKMAP_SET(chunkmap, type)              \
   6         do {                                            \
   7 -               (chunkmap)[type / bytes(u_int32_t)] |=  \
   8 +               chunkmap[type / bytes(u_int32_t)] |=    \
   9                         1 << (type % bytes(u_int32_t)); \
  10         } while (0)
  11
  12  #define SCTP_CHUNKMAP_CLEAR(chunkmap, type)                    \
  13         do {                                                    \
  14 -               (chunkmap)[type / bytes(u_int32_t)] &=          \
  15 +               chunkmap[type / bytes(u_int32_t)] &=            \
  16                         ~(1 << (type % bytes(u_int32_t)));      \
  17         } while (0)
  18
  19  #define SCTP_CHUNKMAP_IS_SET(chunkmap, type)                   \
  20  ({                                                             \
  21 -       ((chunkmap)[type / bytes (u_int32_t)] &                 \
  22 +       (chunkmap[type / bytes (u_int32_t)] &                   \
  23                 (1 << (type % bytes (u_int32_t)))) ? 1: 0;      \
  24  })
  25
  26 -#define SCTP_CHUNKMAP_RESET(chunkmap) \
  27 -       memset((chunkmap), 0, sizeof(chunkmap))
  28 +#define SCTP_CHUNKMAP_RESET(chunkmap)                          \
  29 +       do {                                                    \
  30 +               int i;                                          \
  31 +               for (i = 0; i < ARRAY_SIZE(chunkmap); i++)      \
  32 +                       chunkmap[i] = 0;                        \
  33 +       } while (0)
  34
  35 -#define SCTP_CHUNKMAP_SET_ALL(chunkmap) \
  36 -       memset((chunkmap), ~0U, sizeof(chunkmap))
  37 +#define SCTP_CHUNKMAP_SET_ALL(chunkmap)                        \
  38 +       do {                                                    \
  39 +               int i;                                          \
  40 +               for (i = 0; i < ARRAY_SIZE(chunkmap); i++)      \
  41 +                       chunkmap[i] = ~0;                       \
  42 +       } while (0)
  43
  44 -#define SCTP_CHUNKMAP_COPY(destmap, srcmap) \
  45 -       memcpy((destmap), (srcmap), sizeof(srcmap))
  46 +#define SCTP_CHUNKMAP_COPY(destmap, srcmap)                    \
  47 +       do {                                                    \
  48 +               int i;                                          \
  49 +               for (i = 0; i < ARRAY_SIZE(srcmap); i++)        \
  50 +                       destmap[i] = srcmap[i];                 \
  51 +       } while (0)
  52 +
  53 +#define SCTP_CHUNKMAP_IS_CLEAR(chunkmap)               \
  54 +({                                                     \
  55 +       int i;                                          \
  56 +       int flag = 1;                                   \
  57 +       for (i = 0; i < ARRAY_SIZE(chunkmap); i++) {    \
  58 +               if (chunkmap[i]) {                      \
  59 +                       flag = 0;                       \
  60 +                       break;                          \
  61 +               }                                       \
  62 +       }                                               \
  63 +        flag;                                          \
  64 +})
  65
  66 -#define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \
  67 -       __sctp_chunkmap_is_clear((chunkmap), ARRAY_SIZE(chunkmap))
  68 -static inline bool
  69 -__sctp_chunkmap_is_clear(const u_int32_t *chunkmap, unsigned int n)
  70 -{
  71 -       unsigned int i;
  72 -       for (i = 0; i < n; ++i)
  73 -               if (chunkmap[i])
  74 -                       return false;
  75 -       return true;
  76 -}
  77 -
  78 -#define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \
  79 -       __sctp_chunkmap_is_all_set((chunkmap), ARRAY_SIZE(chunkmap))
  80 -static inline bool
  81 -__sctp_chunkmap_is_all_set(const u_int32_t *chunkmap, unsigned int n)
  82 -{
  83 -       unsigned int i;
  84 -       for (i = 0; i < n; ++i)
  85 -               if (chunkmap[i] != ~0U)
  86 -                       return false;
  87 -       return true;
  88 -}
  89 +#define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap)             \
  90 +({                                                     \
  91 +       int i;                                          \
  92 +       int flag = 1;                                   \
  93 +       for (i = 0; i < ARRAY_SIZE(chunkmap); i++) {    \
  94 +               if (chunkmap[i] != ~0) {                \
  95 +                       flag = 0;                       \
  96 +                               break;                  \
  97 +               }                                       \
  98 +       }                                               \
  99 +        flag;                                          \
 100 +})
 101
 102  #endif /* _XT_SCTP_H_ */
 103