tree cf2888938f759ca613ac88fd690ac1648e006f17
parent ba9e8be3cfa31c2b7c0941e2dd7a11e86ef79672
author Nathan Chancellor <natechancellor@gmail.com> 1609877907 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1652636357 +0200

MIPS: Use address-of operator on section symbols

commit d422c6c0644bccbb1ebeefffa51f35cec3019517 upstream.

When building xway_defconfig with clang:

arch/mips/lantiq/prom.c:82:23: error: array comparison always evaluates
to true [-Werror,-Wtautological-compare]
        else if (__dtb_start != __dtb_end)
                             ^
1 error generated.

These are not true arrays, they are linker defined symbols, which are
just addresses. Using the address of operator silences the warning
and does not change the resulting assembly with either clang/ld.lld
or gcc/ld (tested with diff + objdump -Dr). Do the same thing across
the entire MIPS subsystem to ensure there are no more warnings around
this type of comparison.

Link: https://github.com/ClangBuiltLinux/linux/issues/1232
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>