diff options
Diffstat (limited to 'nixpkgs/pkgs/os-specific/linux/kernel-headers/revert-af_packet-flex.patch')
| -rw-r--r-- | nixpkgs/pkgs/os-specific/linux/kernel-headers/revert-af_packet-flex.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/os-specific/linux/kernel-headers/revert-af_packet-flex.patch b/nixpkgs/pkgs/os-specific/linux/kernel-headers/revert-af_packet-flex.patch new file mode 100644 index 000000000000..ed6c8861d2fb --- /dev/null +++ b/nixpkgs/pkgs/os-specific/linux/kernel-headers/revert-af_packet-flex.patch @@ -0,0 +1,31 @@ +Revert commit https://github.com/torvalds/linux/commit/a0ade8404c3bc2bf2631cb0f20d372eed22d9d96 + +The change caused API regression by turning fixed size struct to +flexible size struct. It was an unintentional change, broke `udp2raw`: + https://github.com/NixOS/nixpkgs/pull/252587#issuecomment-1744427473 +--- a/include/uapi/linux/if_packet.h ++++ b/include/uapi/linux/if_packet.h +@@ -18,11 +18,7 @@ struct sockaddr_ll { + unsigned short sll_hatype; + unsigned char sll_pkttype; + unsigned char sll_halen; +- union { +- unsigned char sll_addr[8]; +- /* Actual length is in sll_halen. */ +- __DECLARE_FLEX_ARRAY(unsigned char, sll_addr_flex); +- }; ++ unsigned char sll_addr[8]; + }; + + /* Packet types */ +--- a/net/packet/af_packet.c ++++ b/net/packet/af_packet.c +@@ -3607,7 +3607,7 @@ static int packet_getname(struct socket *sock, struct sockaddr *uaddr, + if (dev) { + sll->sll_hatype = dev->type; + sll->sll_halen = dev->addr_len; +- memcpy(sll->sll_addr_flex, dev->dev_addr, dev->addr_len); ++ memcpy(sll->sll_addr, dev->dev_addr, dev->addr_len); + } else { + sll->sll_hatype = 0; /* Bad: we have no ARPHRD_UNSPEC */ + sll->sll_halen = 0; |