arm64: include/linux/compiler_types.h:542:38: error: call to '__compiletime_assert_1050' declared with attribute error: clamp() low limit min greater than high limit max_avail

[Dan Carpenter]

Add David to the CC list.

regards,
dan carpenter

On Thu, Dec 05, 2024 at 08:15:13PM +0530, Naresh Kamboju wrote:
> The arm64 build started failing from Linux next-20241203 tag with gcc-8
> due to following build warnings / errors.
> 
> First seen on Linux next-20241203 tag
> GOOD: Linux next-20241128 tag
> BAD: Linux next-20241203 tag and next-20241205 tag
> 
> * arm64, build
>   - gcc-8-defconfig
>   - gcc-8-defconfig-40bc7ee5
> 
> Reported-by: Linux Kernel Functional Testing <lkft at linaro.org>
> 
> Build log:
> ===========
> net/netfilter/ipvs/ip_vs_conn.c: In function 'ip_vs_conn_init':
> include/linux/compiler_types.h:542:38: error: call to
> '__compiletime_assert_1050' declared with attribute error: clamp() low
> limit min greater than high limit max_avail
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>                                       ^
> include/linux/compiler_types.h:523:4: note: in definition of macro
> '__compiletime_assert'
>     prefix ## suffix();    \
>     ^~~~~~
> include/linux/compiler_types.h:542:2: note: in expansion of macro
> '_compiletime_assert'
>   _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>   ^~~~~~~~~~~~~~~~~~~
> include/linux/build_bug.h:39:37: note: in expansion of macro
> 'compiletime_assert'
>  #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
>                                      ^~~~~~~~~~~~~~~~~~
> include/linux/minmax.h:188:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
>   BUILD_BUG_ON_MSG(statically_true(ulo > uhi),    \
>   ^~~~~~~~~~~~~~~~
> include/linux/minmax.h:195:2: note: in expansion of macro '__clamp_once'
>   __clamp_once(type, val, lo, hi, __UNIQUE_ID(v_), __UNIQUE_ID(l_),
> __UNIQUE_ID(h_))
>   ^~~~~~~~~~~~
> include/linux/minmax.h:206:28: note: in expansion of macro '__careful_clamp'
>  #define clamp(val, lo, hi) __careful_clamp(__auto_type, val, lo, hi)
>                             ^~~~~~~~~~~~~~~
> net/netfilter/ipvs/ip_vs_conn.c:1498:8: note: in expansion of macro 'clamp'
>   max = clamp(max, min, max_avail);
>         ^~~~~
> 
> Links:
> ---
> - https://storage.tuxsuite.com/public/linaro/lkft/builds/2pjAOE9K3Dz9gRywrldKTyaXQoT/
> - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241203/testrun/26189105/suite/build/test/gcc-8-defconfig/log
> - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241203/testrun/26189105/suite/build/test/gcc-8-defconfig/details/
> - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241203/testrun/26189105/suite/build/test/gcc-8-defconfig/history/
> 
> Steps to reproduce:
> ------------
> # tuxmake --runtime podman --target-arch arm64 --toolchain gcc-8
> --kconfig defconfig
> 
> metadata:
> ----
>   git describe: next-20241203
>   git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>   git sha: c245a7a79602ccbee780c004c1e4abcda66aec32
>   kernel config:
> https://storage.tuxsuite.com/public/linaro/lkft/builds/2pjAOE9K3Dz9gRywrldKTyaXQoT/config
>   build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2pjAOE9K3Dz9gRywrldKTyaXQoT/
>   toolchain: gcc-8
>   config: gcc-8-defconfig
>   arch: arm64
> 
> --
> Linaro LKFT
> https://lkft.linaro.org