diff mbox series

[bpf-next] bpf: simplify cases in bpf_base_func_proto

Message ID 20210127174615.3038-1-tklauser@distanz.ch (mailing list archive)
State Accepted
Commit 61ca36c8c4eb3bae35a285b1ae18c514cde65439
Delegated to: BPF
Headers show
Series [bpf-next] bpf: simplify cases in bpf_base_func_proto | expand

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netdev/tree_selection success Clearly marked for bpf-next
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netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 6 this patch: 6
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 30 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 6 this patch: 6
netdev/header_inline success Link
netdev/stable success Stable not CCed

Commit Message

Tobias Klauser Jan. 27, 2021, 5:46 p.m. UTC
!perfmon_capable() is checked before the last switch(func_id) in
bpf_base_func_proto. Thus, the cases BPF_FUNC_trace_printk and
BPF_FUNC_snprintf_btf can be moved to that last switch(func_id) to omit
the inline !perfmon_capable() checks.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
---
 kernel/bpf/helpers.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

Comments

patchwork-bot+netdevbpf@kernel.org Jan. 29, 2021, 1:30 a.m. UTC | #1
Hello:

This patch was applied to bpf/bpf-next.git (refs/heads/master):

On Wed, 27 Jan 2021 18:46:15 +0100 you wrote:
> !perfmon_capable() is checked before the last switch(func_id) in
> bpf_base_func_proto. Thus, the cases BPF_FUNC_trace_printk and
> BPF_FUNC_snprintf_btf can be moved to that last switch(func_id) to omit
> the inline !perfmon_capable() checks.
> 
> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
> 
> [...]

Here is the summary with links:
  - [bpf-next] bpf: simplify cases in bpf_base_func_proto
    https://git.kernel.org/bpf/bpf-next/c/61ca36c8c4eb

You are awesome, thank you!
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diff mbox series

Patch

diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 41ca280b1dc1..308427fe03a3 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -720,14 +720,6 @@  bpf_base_func_proto(enum bpf_func_id func_id)
 		return &bpf_spin_lock_proto;
 	case BPF_FUNC_spin_unlock:
 		return &bpf_spin_unlock_proto;
-	case BPF_FUNC_trace_printk:
-		if (!perfmon_capable())
-			return NULL;
-		return bpf_get_trace_printk_proto();
-	case BPF_FUNC_snprintf_btf:
-		if (!perfmon_capable())
-			return NULL;
-		return &bpf_snprintf_btf_proto;
 	case BPF_FUNC_jiffies64:
 		return &bpf_jiffies64_proto;
 	case BPF_FUNC_per_cpu_ptr:
@@ -742,6 +734,8 @@  bpf_base_func_proto(enum bpf_func_id func_id)
 		return NULL;
 
 	switch (func_id) {
+	case BPF_FUNC_trace_printk:
+		return bpf_get_trace_printk_proto();
 	case BPF_FUNC_get_current_task:
 		return &bpf_get_current_task_proto;
 	case BPF_FUNC_probe_read_user:
@@ -752,6 +746,8 @@  bpf_base_func_proto(enum bpf_func_id func_id)
 		return &bpf_probe_read_user_str_proto;
 	case BPF_FUNC_probe_read_kernel_str:
 		return &bpf_probe_read_kernel_str_proto;
+	case BPF_FUNC_snprintf_btf:
+		return &bpf_snprintf_btf_proto;
 	default:
 		return NULL;
 	}