diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-22 09:52:32 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-25 11:13:30 +0100 |
| commit | 6113b6c51af0a54e5d06ca7d4e824a8936dc56d2 (patch) | |
| tree | e335eda21167a937cbc739614b3e905ebc5248bb | |
| parent | 4752330adea4fac414a18f2e8af1a13376e8d9e5 (diff) | |
bpf: add missing header file include
commit f3dd0c53370e70c0f9b7e931bbec12916f3bb8cc upstream.
Commit 74e19ef0ff80 ("uaccess: Add speculation barrier to
copy_from_user()") built fine on x86-64 and arm64, and that's the extent
of my local build testing.
It turns out those got the <linux/nospec.h> include incidentally through
other header files (<linux/kvm_host.h> in particular), but that was not
true of other architectures, resulting in build errors
kernel/bpf/core.c: In function ‘___bpf_prog_run’:
kernel/bpf/core.c:1913:3: error: implicit declaration of function ‘barrier_nospec’
so just make sure to explicitly include the proper <linux/nospec.h>
header file to make everybody see it.
Fixes: 74e19ef0ff80 ("uaccess: Add speculation barrier to copy_from_user()")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Viresh Kumar <viresh.kumar@linaro.org>
Reported-by: Huacai Chen <chenhuacai@loongson.cn>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | kernel/bpf/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 430c66d59ec7..f9c3b1033ec3 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -34,6 +34,7 @@ #include <linux/log2.h> #include <linux/bpf_verifier.h> #include <linux/nodemask.h> +#include <linux/nospec.h> #include <linux/bpf_mem_alloc.h> #include <asm/barrier.h> |