From: Tony Ambardar Date: Thu, 2 Oct 2025 20:31:50 +0000 (-0700) Subject: libbpf: Fix missing #pragma in libbpf_utils.c X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=63d2247e2e37d9c589a0a26aa4e684f736a45e29;p=thirdparty%2Fkernel%2Fstable.git libbpf: Fix missing #pragma in libbpf_utils.c The recent sha256 patch uses a GCC pragma to suppress compile errors for a packed struct, but omits a needed pragma (see related link) and thus still raises errors: (e.g. on GCC 12.3 armhf) libbpf_utils.c:153:29: error: packed attribute causes inefficient alignment for ‘__val’ [-Werror=attributes] 153 | struct __packed_u32 { __u32 __val; } __attribute__((packed)); | ^~~~~ Resolve by adding the GCC diagnostic pragma to ignore "-Wattributes". Link: https://lore.kernel.org/bpf/CAP-5=fXURWoZu2j6Y8xQy23i7=DfgThq3WC1RkGFBx-4moQKYQ@mail.gmail.com/ Fixes: 4a1c9e544b8d ("libbpf: remove linux/unaligned.h dependency for libbpf_sha256()") Signed-off-by: Tony Ambardar Acked-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov --- diff --git a/tools/lib/bpf/libbpf_utils.c b/tools/lib/bpf/libbpf_utils.c index 2bae8cafc077..5d66bc6ff098 100644 --- a/tools/lib/bpf/libbpf_utils.c +++ b/tools/lib/bpf/libbpf_utils.c @@ -150,6 +150,7 @@ const char *libbpf_errstr(int err) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wpacked" +#pragma GCC diagnostic ignored "-Wattributes" struct __packed_u32 { __u32 __val; } __attribute__((packed)); #pragma GCC diagnostic pop