[FS#3980] umbim "address-of-packed-member" compilation warning/errors

[OpenWrt Bugs]

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A new Flyspray task has been opened.  Details are below. 

User who did this - rektide (rektide) 

Attached to Project - OpenWrt/LEDE Project
Summary - umbim "address-of-packed-member" compilation warning/errors
Task Type - Bug Report
Category - Packages
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Environment: arm ipq806x / netgear r7800, trunk
GCC: 10.x

Trying to compile umbim results in a warning/erorr:


make[3]: Entering directory '/usr/local/src/openwrt/package/network/utils/umbim'
mkdir -p /usr/local/src/openwrt/dl
SHELL= flock /usr/local/src/openwrt/tmp/.umbim-2019-09-11-184b707d.tar.xz.flock -c '    /usr/local/src/openwrt/scripts/download.pl "/usr/local/src/openwrt/dl" "umbim-201
9-09-11-184b707d.tar.xz" "482ff69144f81fafed99035840f5a24e772472f2df2f3ac0219d6de791ac5835" "" || (    echo "Checking out files from the git repository..."; mkdir -p /us
r/local/src/openwrt/tmp/dl && cd /usr/local/src/openwrt/tmp/dl && rm -rf umbim-2019-09-11-184b707d && [ \! -d umbim-2019-09-11-184b707d ] && git clone  https://git.openw
rt.org/project/umbim.git umbim-2019-09-11-184b707d && (cd umbim-2019-09-11-184b707d && git checkout 184b707ddaa0acee84d02e0ffe599cb8b67782bd && git submodule update --in
it --recursive) && echo "Packing checkout..." && export TAR_TIMESTAMP=`cd umbim-2019-09-11-184b707d && git log -1 --format='\''@%ct'\''` && rm -rf umbim-2019-09-11-184b7
07d/.git &&        tar --numeric-owner --owner=0 --group=0 --mode=a-s --sort=name ${TAR_TIMESTAMP:+--mtime="$TAR_TIMESTAMP"} -c umbim-2019-09-11-184b707d |        xz -zc
 -7e > /usr/local/src/openwrt/tmp/dl/umbim-2019-09-11-184b707d.tar.xz && mv /usr/local/src/openwrt/tmp/dl/umbim-2019-09-11-184b707d.tar.xz /usr/local/src/openwrt/dl/ &&
rm -rf umbim-2019-09-11-184b707d;  )    '
touch /usr/local/src/openwrt/build_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d/.prepared_d06039bd652ab99df8802435f3362dc7_6664517399ebbbc92a
37c5bb081b5c53_check
. /usr/local/src/openwrt/include/shell.sh; xzcat /usr/local/src/openwrt/dl/umbim-2019-09-11-184b707d.tar.xz | tar -C /usr/local/src/openwrt/build_dir/target-arm_cortex-a
15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d/.. -xf -
[ ! -d ./src/ ] || cp -fpR ./src/. /usr/local/src/openwrt/build_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d
touch /usr/local/src/openwrt/build_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d/.prepared_d06039bd652ab99df8802435f3362dc7_6664517399ebbbc92a
37c5bb081b5c53
rm -f /usr/local/src/openwrt/build_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d/.configured_*
rm -f /usr/local/src/openwrt/staging_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/stamp/.umbim_installed
mkdir -p /usr/local/src/openwrt/build_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d
(cd /usr/local/src/openwrt/build_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d; CFLAGS="-Os -pipe -fno-caller-saves -fno-plt -fhonour-copts -W
[1/5] Building C object CMakeFiles/umbim.dir/cli.c.o
FAILED: CMakeFiles/umbim.dir/cli.c.o
/usr/local/src/openwrt/staging_dir/toolchain-arm_cortex-a15+neon-vfpv4_gcc-10.3.0_musl_eabi/bin/arm-openwrt-linux-muslgnueabi-gcc   -Os -pipe -fno-caller-saves -fno-plt -fhonour-copts -Wno-error=unused-but-set-va
riable -Wno-error=unused-result -mfloat-abi=hard -fmacro-prefix-map=/usr/local/src/openwrt/build_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/umbim-2019-09-11-184b707d=umbim-2019-09-11-184b707d -Wformat -Werror
=format-security -fstack-protector -D_FORTIFY_SOURCE=1 -Wl,-z,now -Wl,-z,relro -I/usr/local/src/openwrt/staging_dir/target-arm_cortex-a15+neon-vfpv4_musl_eabi/usr/include -ffunction-sections -fdata-sections -DNDE
BUG   -Os -ggdb -Wextra -Wall -Werror --std=gnu99 -Wmissing-declarations -Wno-unused-parameter -MD -MT CMakeFiles/umbim.dir/cli.c.o -MF CMakeFiles/umbim.dir/cli.c.o.d -o CMakeFiles/umbim.dir/cli.c.o -c cli.c
cli.c: In function 'mbim_device_caps_response':
cli.c:55:29: error: taking address of packed member of 'struct mbim_basic_connect_device_caps_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]
   55 |  deviceid = mbim_get_string(&caps->deviceid, buffer);
      |                             ^~~~~~~~~~~~~~~
cli.c:56:33: error: taking address of packed member of 'struct mbim_basic_connect_device_caps_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]
   56 |  firmwareinfo = mbim_get_string(&caps->firmwareinfo, buffer);
      |                                 ^~~~~~~~~~~~~~~~~~~
cli.c:57:33: error: taking address of packed member of 'struct mbim_basic_connect_device_caps_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]
   57 |  hardwareinfo = mbim_get_string(&caps->hardwareinfo, buffer);
      |                                 ^~~~~~~~~~~~~~~~~~~
cli.c: In function 'mbim_home_provider_response':
cli.c:111:32: error: taking address of packed member of 'struct mbimprovider' may result in an unaligned pointer value [-Werror=address-of-packed-member]
  111 |  provider_id = mbim_get_string(&provider->providerid, buffer);
      |                                ^~~~~~~~~~~~~~~~~~~~~
cli.c:112:34: error: taking address of packed member of 'struct mbimprovider' may result in an unaligned pointer value [-Werror=address-of-packed-member]
  112 |  provider_name = mbim_get_string(&provider->providername, buffer);
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~
cli.c: In function 'mbim_registration_response':
cli.c:135:32: error: taking address of packed member of 'struct mbim_basic_connect_register_state_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]
  135 |  provider_id = mbim_get_string(&state->providerid, buffer);
      |                                ^~~~~~~~~~~~~~~~~~
cli.c:136:34: error: taking address of packed member of 'struct mbim_basic_connect_register_state_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]
  136 |  provider_name = mbim_get_string(&state->providername, buffer);
      |                                  ^~~~~~~~~~~~~~~~~~~~
cli.c:137:32: error: taking address of packed member of 'struct mbim_basic_connect_register_state_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]
  137 |  roamingtext = mbim_get_string(&state->roamingtext, buffer);
      |                                ^~~~~~~~~~~~~~~~~~~
cli.c: In function 'mbim_subscriber_response':
cli.c:171:33: error: taking address of packed member of 'struct mbim_basic_connect_subscriber_ready_status_r' may result in an unaligned pointer value [-Werror=address-of-packed-member]



More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3980

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