WSL2-Linux-Kernel/tools
Peter Senna Tschudin a2b22dddc7 tools: usb: ffs-test: Fix build on big endian systems
The tools/usb/ffs-test.c file defines cpu_to_le16/32 by using the C
library htole16/32 function calls. However, cpu_to_le16/32 are used when
initializing structures, i.e in a context where a function call is not
allowed.

It works fine on little endian systems because htole16/32 are defined by
the C library as no-ops. But on big-endian systems, they are actually
doing something, which might involve calling a function, causing build
failures, such as:

   ffs-test.c:48:25: error: initializer element is not constant
    #define cpu_to_le32(x)  htole32(x)
                            ^~~~~~~
   ffs-test.c:128:12: note: in expansion of macro ‘cpu_to_le32’
      .magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2),
               ^~~~~~~~~~~

To solve this, we code cpu_to_le16/32 in a way that allows them to be
used when initializing structures. This fix was imported from
meta-openembedded/android-tools/fix-big-endian-build.patch written by
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>.

CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-07-17 10:12:51 +03:00
..
accounting
arch tools/headers: Pick up latest kernel ABIs 2018-06-26 08:43:14 +02:00
bpf tools: bpftool: remember to close the libbpf object after prog load 2018-06-21 23:07:13 +02:00
build tools: build: Use HOSTLDFLAGS with fixdep 2018-07-13 00:48:18 +09:00
cgroup
firewire
gpio
hv
iio
include tools/headers: Pick up latest kernel ABIs 2018-06-26 08:43:14 +02:00
kvm/kvm_stat
laptop
leds
lib docs: Fix some broken references 2018-06-15 18:10:01 -03:00
memory-model
nfsd
objtool objtool: Support GCC 8 '-fnoreorder-functions' 2018-07-02 09:42:11 +02:00
pci
pcmcia
perf Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-07-13 13:33:09 -07:00
power Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2018-06-21 00:37:04 +02:00
scripts
spi
testing Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-07-13 12:50:42 -07:00
thermal/tmon
time
usb tools: usb: ffs-test: Fix build on big endian systems 2018-07-17 10:12:51 +03:00
virtio sg: remove ->sg_magic member 2018-06-29 08:48:06 -06:00
vm
wmi
Makefile