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kernel_optimize_test/tools
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Arnaldo Carvalho de Melo c2b52963fd perf bench inject-buildid: Handle writen() errors 
[ Upstream commit edf7b4a2d85e37a1ee77156bddaed4aa6af9c5e1 ]

The build on fedora:35 and fedora:rawhide with clang is failing with:

  49    41.00 fedora:35                     : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
    bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
            u64 len = 0;
                ^
    1 error generated.
    make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2
  50    41.11 fedora:rawhide                : FAIL clang version 13.0.0 (Fedora 13.0.0~rc1-1.fc35)
    bench/inject-buildid.c:351:6: error: variable 'len' set but not used [-Werror,-Wunused-but-set-variable]
            u64 len = 0;
                ^
    1 error generated.
    make[3]: *** [/git/perf-5.14.0-rc7/tools/build/Makefile.build:139: bench] Error 2

That 'len' variable is not used at all, so just make sure all the
synthesize_RECORD() routines return ssize_t to propagate the writen()
return, as it may fail, ditch the 'ret' var and bail out if those
routines fail.

Fixes: 0bf02a0d80 ("perf bench: Add build-id injection benchmark")
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/CAM9d7cgEZNSor+B+7Y2C+QYGme_v5aH0Zn0RLfxoQ+Fy83EHrg@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-22 12:28:04 +02:00
..
accounting
arch ia64: tools: remove duplicate definition of ia64_mf() on ia64 2021-04-28 13:40:02 +02:00
bootconfig tools/bootconfig: Fix error return code in apply_xbc() 2021-06-16 12:01:45 +02:00
bpf bpftool: Check malloc return value in mount_bpffs_for_pin 2021-07-28 14:35:37 +02:00
build tools: Factor HOSTCC, HOSTLD, HOSTAR definitions 2021-01-30 13:55:19 +01:00
cgroup tools/cgroup/slabinfo.py: updated to work on current kernel 2021-05-07 11:04:31 +02:00
debugging
edid
firewire
firmware
gpio tools: gpio: fix %llu warning in gpio-watch.c 2021-01-27 11:55:20 +01:00
hv
iio
include bpf: Fix a typo of reuseport map in bpf.h. 2021-09-15 09:50:31 +02:00
io_uring
kvm/kvm_stat tools/kvm_stat: Add restart delay 2021-04-16 11:43:20 +02:00
laptop
leds
lib libbpf: Fix race when pinning maps in parallel 2021-09-18 13:40:23 +02:00
memory-model
objtool static_call: Allow module use without exposing static_call_key 2021-03-30 14:31:53 +02:00
pci
pcmcia
perf perf bench inject-buildid: Handle writen() errors 2021-09-22 12:28:04 +02:00
power tweewide: Fix most Shebang lines 2021-05-22 11:40:55 +02:00
scripts tools: Allow proper CC/CXX/... override with LLVM=1 in Makefile.include 2021-07-31 08:16:10 +02:00
spi
testing selftest: net: fix typo in altname test 2021-09-22 12:27:58 +02:00
thermal/tmon tools/thermal/tmon: Add cross compiling support 2021-09-18 13:40:07 +02:00
time
usb
virtio tools/virtio: fix build 2021-09-03 10:09:27 +02:00
vm
wmi
Makefile