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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 12:27:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 12:27:44 -0700 |
| commit | b20dcab9d4589ef9918a13c888c5493945adfc13 (patch) | |
| tree | d18333ef4db91e274ebcf989cc8cdc4ac5ab9392 /net | |
| parent | ed81e780a7dd5698a986f246fad6a1d8d0b6f9ce (diff) | |
| parent | e6b80757700a11315dd81b161f8d86099214c185 (diff) | |
| download | linux-b20dcab9d4589ef9918a13c888c5493945adfc13.tar.gz | |
Merge tag 'llvmlinux-for-v3.16' of git://git.linuxfoundation.org/llvmlinux/kernel
Pull LLVM patches from Behan Webster: "Next set of patches to support compiling the kernel with clang. They've been soaking in linux-next since the last merge window. More still in the works for the next merge window..." * tag 'llvmlinux-for-v3.16' of git://git.linuxfoundation.org/llvmlinux/kernel: arm, unwind, LLVMLinux: Enable clang to be used for unwinding the stack ARM: LLVMLinux: Change "extern inline" to "static inline" in glue-cache.h all: LLVMLinux: Change DWARF flag to support gcc and clang net: netfilter: LLVMLinux: vlais-netfilter crypto: LLVMLinux: aligned-attribute.patch
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/xt_repldata.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/net/netfilter/xt_repldata.h b/net/netfilter/xt_repldata.h index 6efe4e5a81c6..8fd324116e6f 100644 --- a/net/netfilter/xt_repldata.h +++ b/net/netfilter/xt_repldata.h @@ -5,23 +5,35 @@ * they serve as the hanging-off data accessed through repl.data[]. */ +/* tbl has the following structure equivalent, but is C99 compliant: + * struct { + * struct type##_replace repl; + * struct type##_standard entries[nhooks]; + * struct type##_error term; + * } *tbl; + */ + #define xt_alloc_initial_table(type, typ2) ({ \ unsigned int hook_mask = info->valid_hooks; \ unsigned int nhooks = hweight32(hook_mask); \ unsigned int bytes = 0, hooknum = 0, i = 0; \ struct { \ struct type##_replace repl; \ - struct type##_standard entries[nhooks]; \ - struct type##_error term; \ - } *tbl = kzalloc(sizeof(*tbl), GFP_KERNEL); \ + struct type##_standard entries[]; \ + } *tbl; \ + struct type##_error *term; \ + size_t term_offset = (offsetof(typeof(*tbl), entries[nhooks]) + \ + __alignof__(*term) - 1) & ~(__alignof__(*term) - 1); \ + tbl = kzalloc(term_offset + sizeof(*term), GFP_KERNEL); \ if (tbl == NULL) \ return NULL; \ + term = (struct type##_error *)&(((char *)tbl)[term_offset]); \ strncpy(tbl->repl.name, info->name, sizeof(tbl->repl.name)); \ - tbl->term = (struct type##_error)typ2##_ERROR_INIT; \ + *term = (struct type##_error)typ2##_ERROR_INIT; \ tbl->repl.valid_hooks = hook_mask; \ tbl->repl.num_entries = nhooks + 1; \ tbl->repl.size = nhooks * sizeof(struct type##_standard) + \ - sizeof(struct type##_error); \ + sizeof(struct type##_error); \ for (; hook_mask != 0; hook_mask >>= 1, ++hooknum) { \ if (!(hook_mask & 1)) \ continue; \ |