Messages in this thread Patch in this message |  | | Date | Thu, 18 Apr 2019 11:57:48 +1000 | From | Stephen Rothwell <> | Subject | linux-next: build failure after merge of the bpf-next tree |
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Hi all,
After merging the bpf-next tree, today's linux-next build (powerpc perf) failed like this:
In file included from xsk.c:32: libbpf_util.h:49:3: error: #warning Architecture missing native barrier functions in libbpf_util.h. [-Werror=cpp] # warning Architecture missing native barrier functions in libbpf_util.h. ^~~~~~~ cc1: all warnings being treated as errors
Caused by commit
b7e3a28019c9 ("libbpf: remove dependency on barrier.h in xsk.h")
I have applied the following patch for today ... please fix this.
From: Stephen Rothwell <sfr@canb.auug.org.au> Date: Thu, 18 Apr 2019 11:54:56 +1000 Subject: [PATCH] suppress warning in tools/lib/bpf/libbpf_util.h
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> --- tools/lib/bpf/libbpf_util.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf_util.h b/tools/lib/bpf/libbpf_util.h index 172b707e007b..a54eb2cdbdd6 100644 --- a/tools/lib/bpf/libbpf_util.h +++ b/tools/lib/bpf/libbpf_util.h @@ -46,7 +46,7 @@ do { \ # define libbpf_smp_mb() asm volatile("dmb ish" : : : "memory") # define libbpf_smp_rwmb() libbpf_smp_mb() #else -# warning Architecture missing native barrier functions in libbpf_util.h. +//# warning Architecture missing native barrier functions in libbpf_util.h. # define libbpf_smp_rmb() __sync_synchronize() # define libbpf_smp_wmb() __sync_synchronize() # define libbpf_smp_mb() __sync_synchronize() -- 2.20.1 -- Cheers, Stephen Rothwell [unhandled content-type:application/pgp-signature] |  |