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[Qemu-devel] SLIRP warning messages displayed while compiling


From: Programmingkid
Subject: [Qemu-devel] SLIRP warning messages displayed while compiling
Date: Thu, 10 Aug 2017 16:44:19 -0400

Host: Mac OS 10.12.5
Compiler: Apple LLVM version 8.1.0 (clang-802.0.42)
Command used: ./configure --target-list=ppc-softmmu,i386-softmmu && make -j 4

While compiling I saw these error messages:

slirp/ip6_icmp.c:79:32: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
    if (IN6_IS_ADDR_MULTICAST(&ip->ip_src) ||
                               ^~~~~~~~~~
/usr/include/netinet6/in6.h:299:36: note: expanded from macro 
'IN6_IS_ADDR_MULTICAST'
#define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
                                          ^
slirp/ip6_icmp.c:80:38: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                     ^~~~~~~~~~
/usr/include/netinet6/in6.h:238:42: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
                                                ^
slirp/ip6_icmp.c:80:38: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                     ^~~~~~~~~~
/usr/include/netinet6/in6.h:239:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
                                               ^
slirp/ip6_icmp.c:80:38: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                     ^~~~~~~~~~
/usr/include/netinet6/in6.h:240:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
                                               ^
slirp/ip6_icmp.c:80:38: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                     ^~~~~~~~~~
/usr/include/netinet6/in6.h:241:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
                                               ^
slirp/ip6_icmp.c:275:34: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
    if (IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                 ^~~~~~~~~~
/usr/include/netinet6/in6.h:238:42: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
                                                ^
slirp/ip6_icmp.c:275:34: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
    if (IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                 ^~~~~~~~~~
/usr/include/netinet6/in6.h:239:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
                                               ^
slirp/ip6_icmp.c:275:34: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
    if (IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                 ^~~~~~~~~~
/usr/include/netinet6/in6.h:240:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
                                               ^
slirp/ip6_icmp.c:275:34: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
    if (IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)) {
                                 ^~~~~~~~~~
/usr/include/netinet6/in6.h:241:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
                                               ^
slirp/ip6_icmp.c:294:50: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
    ricmp->icmp6_nna.S = !IN6_IS_ADDR_MULTICAST(&rip->ip_dst);
                                                 ^~~~~~~~~~~
/usr/include/netinet6/in6.h:299:36: note: expanded from macro 
'IN6_IS_ADDR_MULTICAST'
#define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
                                          ^
slirp/ip6_icmp.c:351:44: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                && !IN6_IS_ADDR_MULTICAST(&icmp->icmp6_nns.target)
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netinet6/in6.h:299:36: note: expanded from macro 
'IN6_IS_ADDR_MULTICAST'
#define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
                                          ^
slirp/ip6_icmp.c:353:47: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                && (!IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)
                                              ^~~~~~~~~~
/usr/include/netinet6/in6.h:238:42: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
                                                ^
slirp/ip6_icmp.c:353:47: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                && (!IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)
                                              ^~~~~~~~~~
/usr/include/netinet6/in6.h:239:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
                                               ^
slirp/ip6_icmp.c:353:47: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                && (!IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)
                                              ^~~~~~~~~~
/usr/include/netinet6/in6.h:240:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
                                               ^
slirp/ip6_icmp.c:353:47: warning: taking address of packed member 'ip_src' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                && (!IN6_IS_ADDR_UNSPECIFIED(&ip->ip_src)
                                              ^~~~~~~~~~
/usr/include/netinet6/in6.h:241:41: note: expanded from macro 
'IN6_IS_ADDR_UNSPECIFIED'
        (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
                                               ^
slirp/ip6_icmp.c:354:53: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                    || in6_solicitednode_multicast(&ip->ip_dst))) {
                                                    ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:91:20: 
note: 
      expanded from macro 'in6_solicitednode_multicast'
    (in6_equal_net(a, &(struct in6_addr)SOLICITED_NODE_PREFIX, 104))
                   ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
     ~~~~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:76:21: 
note: 
      expanded from macro 'in6_equal_router'
    ((in6_equal_net(a, &slirp->vprefix_addr6, slirp->vprefix_len)\
                    ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
     ~~~~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:77:25: 
note: 
      expanded from macro 'in6_equal_router'
      && in6_equal_mach(a, &slirp->vhost_addr6, slirp->vprefix_len))\
                        ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
     ~~~~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:78:21: 
note: 
      expanded from macro 'in6_equal_router'
  || (in6_equal_net(a, &(struct in6_addr)LINKLOCAL_ADDR, 64)\
                    ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
     ~~~~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:79:25: 
note: 
      expanded from macro 'in6_equal_router'
      && in6_equal_mach(a, &slirp->vhost_addr6, 64)))
                        ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                            ~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:82:21: 
note: 
      expanded from macro 'in6_equal_dns'
    ((in6_equal_net(a, &slirp->vprefix_addr6, slirp->vprefix_len)\
                    ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                            ~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:83:25: 
note: 
      expanded from macro 'in6_equal_dns'
      && in6_equal_mach(a, &slirp->vnameserver_addr6, slirp->vprefix_len))\
                        ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                            ~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:84:21: 
note: 
      expanded from macro 'in6_equal_dns'
  || (in6_equal_net(a, &(struct in6_addr)LINKLOCAL_ADDR, 64)\
                    ^
slirp/ip6_icmp.c:355:33: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_ns' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
            if (in6_equal_host(&icmp->icmp6_nns.target)) {
                ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                            ~~~~~~~~~~~~~~^~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:85:25: 
note: 
      expanded from macro 'in6_equal_dns'
      && in6_equal_mach(a, &slirp->vnameserver_addr6, 64)))
                        ^
slirp/ip6_icmp.c:368:44: warning: taking address of packed member 'target' of 
class or
      structure 'ndp_na' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                && !IN6_IS_ADDR_MULTICAST(&icmp->icmp6_nna.target)
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/netinet6/in6.h:299:36: note: expanded from macro 
'IN6_IS_ADDR_MULTICAST'
#define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
                                          ^
slirp/ip6_icmp.c:369:45: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                && (!IN6_IS_ADDR_MULTICAST(&ip->ip_dst)
                                            ^~~~~~~~~~
/usr/include/netinet6/in6.h:299:36: note: expanded from macro 
'IN6_IS_ADDR_MULTICAST'
#define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
                                          ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                      ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:76:21: 
note: 
      expanded from macro 'in6_equal_router'
    ((in6_equal_net(a, &slirp->vprefix_addr6, slirp->vprefix_len)\
                    ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                      ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:77:25: 
note: 
      expanded from macro 'in6_equal_router'
      && in6_equal_mach(a, &slirp->vhost_addr6, slirp->vprefix_len))\
                        ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                      ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:78:21: 
note: 
      expanded from macro 'in6_equal_router'
  || (in6_equal_net(a, &(struct in6_addr)LINKLOCAL_ADDR, 64)\
                    ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:23: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                      ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:79:25: 
note: 
      expanded from macro 'in6_equal_router'
      && in6_equal_mach(a, &slirp->vhost_addr6, 64)))
                        ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                                          ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:82:21: 
note: 
      expanded from macro 'in6_equal_dns'
    ((in6_equal_net(a, &slirp->vprefix_addr6, slirp->vprefix_len)\
                    ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                                          ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:83:25: 
note: 
      expanded from macro 'in6_equal_dns'
      && in6_equal_mach(a, &slirp->vnameserver_addr6, slirp->vprefix_len))\
                        ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                                          ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:84:21: 
note: 
      expanded from macro 'in6_equal_dns'
  || (in6_equal_net(a, &(struct in6_addr)LINKLOCAL_ADDR, 64)\
                    ^
slirp/ip6_icmp.c:414:29: warning: taking address of packed member 'ip_dst' of 
class or
      structure 'ip6' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
        if (in6_equal_host(&ip->ip_dst)) {
                            ^~~~~~~~~~
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:88:43: 
note: 
      expanded from macro 'in6_equal_host'
    (in6_equal_router(a) || in6_equal_dns(a))
                                          ^
/Users/john/Documents/Development/Projects/Qemu/qemu-git/slirp/ip6.h:85:25: 
note: 
      expanded from macro 'in6_equal_dns'
      && in6_equal_mach(a, &slirp->vnameserver_addr6, 64)))
                        ^

slirp/ip_input.c:159:43: warning: taking address of packed member 'ip_link' of 
class or
      structure 'ipq' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                for (l = slirp->ipq.ip_link.next; l != &slirp->ipq.ip_link;
                                                        ^~~~~~~~~~~~~~~~~~
slirp/ip_input.c:441:18: warning: taking address of packed member 'ip_link' of 
class or
      structure 'ipq' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
    while (l != &slirp->ipq.ip_link) {
                 ^~~~~~~~~~~~~~~~~~
2 warnings generated.
34 warnings generated.

slirp/slirp.c:403:19: warning: taking address of packed member 'ip_link' of 
class or
      structure 'ipq' may result in an unaligned pointer value
      [-Waddress-of-packed-member]
                (&slirp->ipq.ip_link != slirp->ipq.ip_link.next));


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