#ifndef BPF_EXT
#define BPF_EXT
#ifndef SKF_AD_OFF
# define SKF_AD_OFF (-0x1000)
#endif
#ifndef SKF_AD_PROTOCOL
# define SKF_AD_PROTOCOL 0
#endif
#ifndef SKF_AD_PKTTYPE
# define SKF_AD_PKTTYPE 4
#endif
#ifndef SKF_AD_IFINDEX
# define SKF_AD_IFINDEX 8
#endif
#ifndef SKF_AD_NLATTR
# define SKF_AD_NLATTR 12
#endif
#ifndef SKF_AD_NLATTR_NEST
# define SKF_AD_NLATTR_NEST 16
#endif
#ifndef SKF_AD_MARK
# define SKF_AD_MARK 20
#endif
#ifndef SKF_AD_QUEUE
# define SKF_AD_QUEUE 24
#endif
#ifndef SKF_AD_HATYPE
# define SKF_AD_HATYPE 28
#endif
#ifndef SKF_AD_RXHASH
# define SKF_AD_RXHASH 32
#endif
#ifndef SKF_AD_CPU
# define SKF_AD_CPU 36
#endif
#ifndef SKF_AD_VLAN_TAG
# define SKF_AD_VLAN_TAG 44
#endif
#ifndef SKF_AD_VLAN_TAG_PRESENT
# define SKF_AD_VLAN_TAG_PRESENT 48
#endif
#ifndef SKF_AD_PAY_OFFSET
# define SKF_AD_PAY_OFFSET 52
#endif
#endif /* BPF_EXT */
.git/'>net-next.git
kbuild: allow archs to select link dead code/data elimination
Introduce LD_DEAD_CODE_DATA_ELIMINATION option for architectures to
select to build with -ffunction-sections, -fdata-sections, and link
with --gc-sections. It requires some work (documented) to ensure all
unreferenced entrypoints are live, and requires toolchain and build
verification, so it is made a per-arch option for now.
On a random powerpc64le build, this yelds a significant size saving,
it boots and runs fine, but there is a lot I haven't tested as yet, so
these savings may be reduced if there are bugs in the link.
text data bss dec filename
11169741 1180744 1923176 14273661 vmlinux
10445269 1004127 1919707 13369103 vmlinux.dce
~700K text, ~170K data, 6% removed from kernel image size.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.com>