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From 4e2851687904cff7ab4f8faa862b9046e5aaab09 Mon Sep 17 00:00:00 2001
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From: Jerome Marchand <jmarchan@redhat.com>
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Date: Fri, 30 Jul 2021 18:15:05 +0200
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Subject: [PATCH] libbpf-tools: readahead: don't mark struct hist as static
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Libbpf readahead tool does not compile with bpftool v5.14. Since
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commit 31332ccb756 ("bpftool: Stop emitting static variables in BPF
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skeleton"), bpftool gen skeleton does not include static variable into
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the skeleton file anymore.
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Fixes the following compilation error:
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readahead.c: In function 'main':
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readahead.c:153:26: error: 'struct readahead_bpf__bss' has no member named 'hist'
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153 | histp = &obj->bss->hist;
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| ^~
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---
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libbpf-tools/readahead.bpf.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/libbpf-tools/readahead.bpf.c b/libbpf-tools/readahead.bpf.c
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index ba22e534..cfead704 100644
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--- a/libbpf-tools/readahead.bpf.c
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+++ b/libbpf-tools/readahead.bpf.c
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@@ -24,7 +24,7 @@ struct {
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__uint(map_flags, BPF_F_NO_PREALLOC);
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} birth SEC(".maps");
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-static struct hist hist;
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+struct hist hist = {};
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SEC("fentry/do_page_cache_ra")
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int BPF_PROG(do_page_cache_ra)
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--
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2.31.1
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