Hou Tao 356ed64991 bpf: Handle return value of BPF_PROG_TYPE_STRUCT_OPS prog ... Currently if a function ptr in struct_ops has a return value, its caller will get a random return value from it, because the return value of related BPF_PROG_TYPE_STRUCT_OPS prog is just dropped. So adding a new flag BPF_TRAMP_F_RET_FENTRY_RET to tell bpf trampoline to save and return the return value of struct_ops prog if ret_size of the function ptr is greater than 0. Also restricting the flag to be used alone. Fixes: 85d33df357 ("bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS") Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20210914023351.3664499-1-houtao1@huawei.com		2021-09-14 11:09:50 -07:00
..
acpi	Kbuild updates for v5.15	2021-09-03 15:33:47 -07:00
asm-generic	printk changes for 5.15	2021-09-01 18:41:13 -07:00
clocksource
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2021-08-30 12:57:10 -07:00
drm
dt-bindings	linux-watchdog 5.15-rc1 tag	2021-09-07 13:52:46 -07:00
keys
kunit
kvm
linux	bpf: Handle return value of BPF_PROG_TYPE_STRUCT_OPS prog	2021-09-14 11:09:50 -07:00
math-emu
media
memory
misc
net	flow: fix object-size-mismatch warning in flowi{4,6}_to_flowi_common()	2021-09-02 11:44:19 +01:00
pcmcia
ras
rdma	Merge branch 'sg_nents' into rdma.git for-next	2021-08-30 09:49:59 -03:00
scsi	scsi: core: Remove scsi_cmnd.tag	2021-08-17 22:28:39 -04:00
soc	Merge branches 'clk-nvidia', 'clk-rockchip', 'clk-at91' and 'clk-vc5' into clk-next	2021-09-01 15:26:58 -07:00
sound	ASoC: Updates for v5.15	2021-08-30 14:57:03 +02:00
target	scsi: target: Allows backend drivers to fail with specific sense codes	2021-08-17 22:28:40 -04:00
trace	for-5.15/io_uring-2021-09-04	2021-09-06 09:26:07 -07:00
uapi	Networking stragglers and fixes for 5.15-rc1, including changes from netfilter,	2021-09-07 14:02:58 -07:00
vdso
video
xen