On 11/13/20 1:24 PM, David Marchand wrote:
> vhost_blk.c: In function ‘ctrlr_worker’:
> vhost_blk.c:543:2: warning: implicit declaration of function ‘CPU_ZERO’
> [-Wimplicit-function-declaration]
> 543 | CPU_ZERO(&cpuset);
> | ^~~~~~~~
> vhost_blk.c:544:2: warning: implicit declaration of function ‘CPU_SET’
> [-Wimplicit-function-declaration]
> 544 | CPU_SET(0, &cpuset);
> | ^~~~~~~
> vhost_blk.c:545:2: warning: implicit declaration of function
> ‘pthread_setaffinity_np’ [-Wimplicit-function-declaration]
> 545 | pthread_setaffinity_np(thread, sizeof(cpu_set_t), &cpuset);
> | ^~~~~~~~~~~~~~~~~~~~~~
> /usr/bin/ld: /tmp/cczpiMWH.o: in function `ctrlr_worker':
> vhost_blk.c:(.text+0x1076): undefined reference to `CPU_ZERO'
> /usr/bin/ld: vhost_blk.c:(.text+0x1082): undefined reference to
> `CPU_SET'
> collect2: error: ld returned 1 exit status
> gmake: *** [Makefile:34: build/vhost-blk-shared] Error 1
>
> Explicitly pass _GNU_SOURCE and include missing headers (rather than
> rely on automagic inclusion from other system headers).
>
> Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
>
> Signed-off-by: David Marchand <david.march...@redhat.com>
> Acked-by: Bruce Richardson <bruce.richard...@intel.com>
> ---
> examples/vhost_blk/vhost_blk.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
> index 8f5d61a589..bb293d492f 100644
> --- a/examples/vhost_blk/vhost_blk.c
> +++ b/examples/vhost_blk/vhost_blk.c
> @@ -2,6 +2,12 @@
> * Copyright(c) 2010-2019 Intel Corporation
> */
>
> +#ifndef _GNU_SOURCE
> +#define _GNU_SOURCE
> +#endif
> +#include <pthread.h>
> +#include <sched.h>
> +
> #include <stdint.h>
> #include <unistd.h>
> #include <stdbool.h>
>
Reviewed-by: Maxime Coquelin <maxime.coque...@redhat.com>
