diff mbox series

[bpf-next,v3] riscv, bpf: Add kfunc support for RV64

Message ID 20230221140656.3480496-1-pulehui@huaweicloud.com (mailing list archive)
State Accepted
Commit d40c3847b485acc3522b62b020f77dcd38ca357f
Delegated to: BPF
Headers show
Series [bpf-next,v3] riscv, bpf: Add kfunc support for RV64 | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for bpf-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Single patches do not need cover letters
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 3 maintainers not CCed: palmer@dabbelt.com aou@eecs.berkeley.edu paul.walmsley@sifive.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
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Commit Message

Pu Lehui Feb. 21, 2023, 2:06 p.m. UTC 
From: Pu Lehui <pulehui@huawei.com>

This patch adds kernel function call support for RV64. Since the offset
from RV64 kernel and module functions to bpf programs is almost within
the range of s32, the current infrastructure of RV64 is already
sufficient for kfunc, so let's turn it on.

Suggested-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Acked-by: Björn Töpel <bjorn@rivosinc.com>
---
v3:
- rewrite commit message to make more sense.
- Add Acked-by of Björn.

 arch/riscv/net/bpf_jit_comp64.c | 5 +++++
 1 file changed, 5 insertions(+)

Comments

patchwork-bot+netdevbpf@kernel.org Feb. 22, 2023, 9:20 p.m. UTC | #1 
Hello:

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

On Tue, 21 Feb 2023 22:06:56 +0800 you wrote:
> From: Pu Lehui <pulehui@huawei.com>
> 
> This patch adds kernel function call support for RV64. Since the offset
> from RV64 kernel and module functions to bpf programs is almost within
> the range of s32, the current infrastructure of RV64 is already
> sufficient for kfunc, so let's turn it on.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v3] riscv, bpf: Add kfunc support for RV64
    https://git.kernel.org/bpf/bpf-next/c/d40c3847b485

You are awesome, thank you!
diff mbox series

Patch

diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c
index f5a668736c79..a9270366dc57 100644
--- a/arch/riscv/net/bpf_jit_comp64.c
+++ b/arch/riscv/net/bpf_jit_comp64.c
@@ -1751,3 +1751,8 @@  void bpf_jit_build_epilogue(struct rv_jit_context *ctx)
 {
 	__build_epilogue(false, ctx);
 }
+
+bool bpf_jit_supports_kfunc_call(void)
+{
+	return true;
+}