bpf: Avoid thousands of -Wflex-array-members-not-at-end warnings#11274
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bpf: Avoid thousands of -Wflex-array-members-not-at-end warnings#11274kernel-patches-daemon-bpf[bot] wants to merge 1 commit intobpf-next_basefrom
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-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. struct bpf_prog_array is a flexible structure, this is a structure that contains a flexible-array member (struct bpf_prog_array_item items[];). We create the new struct bpf_prog_array_hdr type, and use it to replace the object type causing trouble in struct bpf_empty_prog_array, namely struct bpf_prog_array hdr; Also, once -fms-extensions is enabled, we can use transparent struct members in struct bpf_prog_array. Notice that the newly created type does not contain the flex-array member `items`, which is the object causing the -Wfamnae warnings in struct bpf_empty_prog_array. With these changes, fix the following warnings: 7659 ./include/linux/bpf.h:2369:31: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
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Pull request for series with
subject: bpf: Avoid thousands of -Wflex-array-members-not-at-end warnings
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=1060844