2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-14 08:13:56 +08:00
linux-next/arch/s390
Song Liu cf094baa3e s390/bpf: Let arch_prepare_bpf_trampoline return program size
arch_prepare_bpf_trampoline() for s390 currently returns 0 on success. This
is not a problem for regular trampoline. However, struct_ops relies on the
return value to advance "image" pointer:

bpf_struct_ops_map_update_elem() {
    ...
    for_each_member(i, t, member) {
        ...
        err = bpf_struct_ops_prepare_trampoline();
        ...
        image += err;
    }
}

When arch_prepare_bpf_trampoline returns 0 on success, all members of the
struct_ops will point to the same trampoline (the last one).

Fix this by returning the program size in arch_prepare_bpf_trampoline (on
success). This is the same behavior as other architectures.

Signed-off-by: Song Liu <song@kernel.org>
Fixes: 528eb2cb87 ("s390/bpf: Implement arch_prepare_bpf_trampoline()")
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230919060258.3237176-2-song@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-09-19 02:58:22 -07:00
..
appldata sysctl: Add size to register_sysctl 2023-08-15 15:26:17 -07:00
boot s390/mm: simplify kernel mapping setup 2023-08-30 11:03:27 +02:00
configs Kbuild updates for v6.6 2023-09-05 11:01:47 -07:00
crypto s390/paes: fix PKEY_TYPE_EP11_AES handling for secure keyblobs 2023-08-17 15:18:53 +02:00
hypfs s390 updates for 6.6 merge window 2023-08-28 17:22:39 -07:00
include ARM: 2023-09-07 13:52:20 -07:00
kernel ARM: 2023-09-07 13:52:20 -07:00
kvm ARM: 2023-09-07 13:52:20 -07:00
lib s390: replace #include <asm/export.h> with #include <linux/export.h> 2023-08-09 15:20:50 +02:00
mm ARM: 2023-09-07 13:52:20 -07:00
net s390/bpf: Let arch_prepare_bpf_trampoline return program size 2023-09-19 02:58:22 -07:00
pci - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
purgatory s390 updates for 6.5 merge window part 2 2023-07-06 13:18:30 -07:00
tools KVM: s390: Add facility 197 to the allow list 2022-07-13 15:25:25 +02:00
Kbuild - An extensive rework of kexec and crash Kconfig from Eric DeVolder 2023-08-29 14:53:51 -07:00
Kconfig Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
Kconfig.debug s390/Kconfig.debug: fix indentation 2022-06-01 12:03:15 +02:00
Makefile s390: use obj-y to descend into drivers/s390/ 2023-07-24 12:12:25 +02:00