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IDProjectCategoryView StatusLast Update
0005050UBootU-Bootpublic2021-10-28 14:21
Reporterderksen Assigned To 
PrioritynormalSeverityminorReproducibilityhave not tried
Status resolvedResolutionfixed 
Product Versionfsimx8mn-Y2021.09 
Target Versionfsimx6-B2021.10Fixed in Versionfsimx6-B2021.10 
Summary0005050: net: unaligned copying of unsigned long
Descriptionnet: unaligned copying of unsigned long

The inline functions net_read_u32() and net_copy_u32() have been created to
copy unaligned u32. But this is not obvious to the compiler. GCC 9.1
introduces a check -Werror=address-of-packed-member which leads to a build
error on Travis CI:
Additional InformationExternal patch:
    Reported-by: Ramon Fried <>
    Signed-off-by: Heinrich Schuchardt <>
    Acked-by: Joe Hershberger <>

net/bootp.c: In function ‘dhcp_send_request_packet’:
net/bootp.c:1011:27: error: taking address of packed member of
‘struct bootp_hdr’ may result in an unaligned pointer value
 1011 | net_copy_u32(&bp->bp_id, &bp_offer->bp_id);
Change the type of the function parameters to void * to avoid the build
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