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nsresourced: Fix declaration of bpf_rdonly_cast()

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Fixes compilation error

"""
[780/3171] /usr/bin/clang -std=gnu11 -Wno-compare-distinct-pointer-types -fno-stack-protector -O2 -target bpf -g -c -D__aarch64__ -I. -isystem /usr/include/ -idirafter /usr/include ../src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.c -o src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.unstripped.o -I/usr/src/kernels/6.11.1-0.hs1.hs+fb.el9.aarch64
FAILED: src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.unstripped.o
/usr/bin/clang -std=gnu11 -Wno-compare-distinct-pointer-types -fno-stack-protector -O2 -target bpf -g -c -D__aarch64__ -I. -isystem /usr/include/ -idirafter /usr/include ../src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.c -o src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.unstripped.o -I/usr/src/kernels/6.11.1-0.hs1.hs+fb.el9.aarch64
../src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.c:27:7: error: conflicting types for 'bpf_rdonly_cast'
   27 | void *bpf_rdonly_cast(void *, __u32) __ksym;
      |       ^
/usr/src/kernels/6.11.1-0.hs1.hs+fb.el9.aarch64/vmlinux.h:143063:14: note: previous declaration is here
 143063 | extern void *bpf_rdonly_cast(const void *obj__ign, u32 btf_id__k) __weak __ksym;
        |              ^
1 error generated.
"""
This commit is contained in:
Daan De Meyer 2024-10-03 10:46:27 +02:00 committed by Luca Boccassi
parent 305272ab2b
commit 33f1c5287f
1 changed files with 1 additions and 1 deletions
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src/nsresourced/bpf/userns_restrict/userns-restrict.bpf.c
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@ -24,7 +24,7 @@
/* bpf_rdonly_cast() was introduced in libbpf commit 688879f together with
* the definition of a bpf_core_cast macro. So use that one to avoid
* defining a prototype for bpf_rdonly_cast */
void *bpf_rdonly_cast(void *, __u32) __ksym;
void* bpf_rdonly_cast(const void *, __u32) __ksym;
#endif
/* BPF module that implements an allowlist of mounts (identified by mount ID) for user namespaces (identified