diff mbox series

[v1] bpf,arena: Use helper sizeof_field in struct accessors

Message ID 20240327065334.8140-1-haiyue.wang@intel.com (mailing list archive)
State Accepted
Commit 45a683b2d815c4d775b77e8c8f0ac9e9b65f3f12
Delegated to: BPF
Headers show
Series [v1] bpf,arena: Use helper sizeof_field in struct accessors | expand

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bpf/vmtest-bpf-next-PR success PR summary
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netdev/series_format warning Single patches do not need cover letters; Target tree name not specified in the subject
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 13 of 13 maintainers
netdev/build_clang success Errors and warnings before: 956 this patch: 956
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
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netdev/checkpatch warning CHECK: Prefer using the BIT_ULL macro
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Commit Message

Wang, Haiyue March 27, 2024, 6:53 a.m. UTC 
Use the well defined helper sizeof_field() to calculate the size of a
struct member, instead of doing custom calculations.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
---
 kernel/bpf/arena.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

patchwork-bot+netdevbpf@kernel.org March 27, 2024, 4:30 p.m. UTC | #1 
Hello:

This patch was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@kernel.org>:

On Wed, 27 Mar 2024 14:53:29 +0800 you wrote:
> Use the well defined helper sizeof_field() to calculate the size of a
> struct member, instead of doing custom calculations.
> 
> Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
> ---
>  kernel/bpf/arena.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Here is the summary with links:
  - [v1] bpf,arena: Use helper sizeof_field in struct accessors
    https://git.kernel.org/bpf/bpf-next/c/45a683b2d815

You are awesome, thank you!
diff mbox series

Patch

diff --git a/kernel/bpf/arena.c b/kernel/bpf/arena.c
index 86571e760dd6..af5cae640669 100644
--- a/kernel/bpf/arena.c
+++ b/kernel/bpf/arena.c
@@ -37,7 +37,7 @@ 
  */
 
 /* number of bytes addressable by LDX/STX insn with 16-bit 'off' field */
-#define GUARD_SZ (1ull << sizeof(((struct bpf_insn *)0)->off) * 8)
+#define GUARD_SZ (1ull << sizeof_field(struct bpf_insn, off) * 8)
 #define KERN_VM_SZ ((1ull << 32) + GUARD_SZ)
 
 struct bpf_arena {