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-rw-r--r--package/boot/uboot-lantiq/patches/0029-net-Use_packed_structures-for_networking.patch142
1 files changed, 142 insertions, 0 deletions
diff --git a/package/boot/uboot-lantiq/patches/0029-net-Use_packed_structures-for_networking.patch b/package/boot/uboot-lantiq/patches/0029-net-Use_packed_structures-for_networking.patch
new file mode 100644
index 0000000000..f2f77364e3
--- /dev/null
+++ b/package/boot/uboot-lantiq/patches/0029-net-Use_packed_structures-for_networking.patch
@@ -0,0 +1,142 @@
+From 704f3acfcf55343043bbed01c5fb0a0094a68e8a Mon Sep 17 00:00:00 2001
+From: Denis Pynkin <denis.pynkin@collabora.com>
+Date: Fri, 21 Jul 2017 19:28:42 +0300
+Subject: [PATCH] net: Use packed structures for networking
+
+PXE boot is broken with GCC 7.1 due option '-fstore-merging' enabled
+by default for '-O2':
+
+BOOTP broadcast 1
+data abort
+pc : [<8ff8bb30>] lr : [<00004f1f>]
+reloc pc : [<17832b30>] lr : [<878abf1f>]
+sp : 8f558bc0 ip : 00000000 fp : 8ffef5a4
+r10: 8ffed248 r9 : 8f558ee0 r8 : 8ffef594
+r7 : 0000000e r6 : 8ffed700 r5 : 00000000 r4 : 8ffed74e
+r3 : 00060101 r2 : 8ffed230 r1 : 8ffed706 r0 : 00000ddd
+Flags: nzcv IRQs off FIQs off Mode SVC_32
+Resetting CPU ...
+
+Core reason is usage of structures for network headers without packed
+attribute.
+
+Reviewed-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com>
+Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
+Acked-by: Joe Hershberger <joe.hershberger@ni.com>
+---
+ include/net.h | 14 +++++++-------
+ net/bootp.h | 2 +-
+ net/dns.h | 2 +-
+ net/nfs.h | 2 +-
+ net/sntp.h | 2 +-
+ 5 files changed, 11 insertions(+), 11 deletions(-)
+
+--- a/include/net.h
++++ b/include/net.h
+@@ -203,7 +203,7 @@ struct ethernet_hdr {
+ uchar et_dest[6]; /* Destination node */
+ uchar et_src[6]; /* Source node */
+ ushort et_protlen; /* Protocol or length */
+-};
++} __attribute__((packed));
+
+ /* Ethernet header size */
+ #define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr))
+@@ -219,7 +219,7 @@ struct e802_hdr {
+ uchar et_snap2;
+ uchar et_snap3;
+ ushort et_prot; /* 802 protocol */
+-};
++} __attribute__((packed));
+
+ /* 802 + SNAP + ethernet header size */
+ #define E802_HDR_SIZE (sizeof(struct e802_hdr))
+@@ -233,7 +233,7 @@ struct vlan_ethernet_hdr {
+ ushort vet_vlan_type; /* PROT_VLAN */
+ ushort vet_tag; /* TAG of VLAN */
+ ushort vet_type; /* protocol type */
+-};
++} __attribute__((packed));
+
+ /* VLAN Ethernet header size */
+ #define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr))
+@@ -260,7 +260,7 @@ struct ip_hdr {
+ ushort ip_sum; /* checksum */
+ IPaddr_t ip_src; /* Source IP address */
+ IPaddr_t ip_dst; /* Destination IP address */
+-};
++} __attribute__((packed));
+
+ #define IP_OFFS 0x1fff /* ip offset *= 8 */
+ #define IP_FLAGS 0xe000 /* first 3 bits */
+@@ -288,7 +288,7 @@ struct ip_udp_hdr {
+ ushort udp_dst; /* UDP destination port */
+ ushort udp_len; /* Length of UDP packet */
+ ushort udp_xsum; /* Checksum */
+-};
++} __attribute__((packed));
+
+ #define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr))
+ #define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE)
+@@ -327,7 +327,7 @@ struct arp_hdr {
+ uchar ar_tha[]; /* Target hardware address */
+ uchar ar_tpa[]; /* Target protocol address */
+ #endif /* 0 */
+-};
++} __attribute__((packed));
+
+ #define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */
+
+@@ -362,7 +362,7 @@ struct icmp_hdr {
+ } frag;
+ uchar data[0];
+ } un;
+-};
++} __attribute__((packed));
+
+ #define ICMP_HDR_SIZE (sizeof(struct icmp_hdr))
+ #define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE)
+--- a/net/bootp.h
++++ b/net/bootp.h
+@@ -49,7 +49,7 @@ struct Bootp_t {
+ char bp_sname[64]; /* Server host name */
+ char bp_file[128]; /* Boot file name */
+ char bp_vend[OPT_FIELD_SIZE]; /* Vendor information */
+-};
++} __attribute__((packed));
+
+ #define BOOTP_HDR_SIZE sizeof(struct Bootp_t)
+
+--- a/net/dns.h
++++ b/net/dns.h
+@@ -29,7 +29,7 @@ struct header {
+ uint16_t nauth; /* Authority PRs */
+ uint16_t nother; /* Other PRs */
+ unsigned char data[1]; /* Data, variable length */
+-};
++} __attribute__((packed));
+
+ extern void DnsStart(void); /* Begin DNS */
+
+--- a/net/sntp.h
++++ b/net/sntp.h
+@@ -51,7 +51,7 @@ struct sntp_pkt_t {
+ unsigned long long originate_timestamp;
+ unsigned long long receive_timestamp;
+ unsigned long long transmit_timestamp;
+-};
++} __attribute__((packed));
+
+ extern void SntpStart(void); /* Begin SNTP */
+
+--- a/net/nfs.h
++++ b/net/nfs.h
+@@ -68,7 +68,7 @@ struct rpc_t {
+ uint32_t data[19];
+ } reply;
+ } u;
+-};
++} __attribute__((packed));
+ extern void NfsStart(void); /* Begin NFS */
+
+