patches/02-ksize.patch

   1 ksize() was added as of 2.6.29, it gives you the actual
   2 size of the allocated data. Since we have no support for
   3 this we simply do not optimize for it and deal with
   4 large alloocations for the IEs.
   5
   6 We technically could backport this as
   7
   8 define ksize(bleh) SOME_LARGE_NUMBER
   9
  10 but doing it this way emphasis careful review
  11 of the situation.
  12
  13 --- a/net/wireless/scan.c
  14 +++ b/net/wireless/scan.c
  15 @@ -426,9 +426,14 @@ cfg80211_bss_update(struct cfg80211_regi
  16                         size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
  17                         size_t ielen = res->pub.len_proberesp_ies;
  18
  19 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,28)
  20 +                       if (0) {
  21 +                               used = 0; /* just to shut up the compiler */
  22 +#else
  23                         if (found->pub.proberesp_ies &&
  24                             !found->proberesp_ies_allocated &&
  25                             ksize(found) >= used + ielen) {
  26 +#endif
  27                                 memcpy(found->pub.proberesp_ies,
  28                                        res->pub.proberesp_ies, ielen);
  29                                 found->pub.len_proberesp_ies = ielen;
  30 @@ -459,9 +464,14 @@ cfg80211_bss_update(struct cfg80211_regi
  31                         size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
  32                         size_t ielen = res->pub.len_beacon_ies;
  33
  34 +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,28)
  35 +                       if (0) {
  36 +                               used = 0; /* just to shut up the compiler */
  37 +#else
  38                         if (found->pub.beacon_ies &&
  39                             !found->beacon_ies_allocated &&
  40                             ksize(found) >= used + ielen) {
  41 +#endif
  42                                 memcpy(found->pub.beacon_ies,
  43                                        res->pub.beacon_ies, ielen);
  44                                 found->pub.len_beacon_ies = ielen;