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 Handled Elsewhere
Headers show
Series [bpf-next,v3] riscv, bpf: Add kfunc support for RV64 | expand

Checks

Context Check Description
conchuod/cover_letter success Single patches do not need cover letters
conchuod/tree_selection success Guessed tree name to be for-next
conchuod/fixes_present success Fixes tag not required for -next series
conchuod/maintainers_pattern success MAINTAINERS pattern errors before the patch: 13 and now 13
conchuod/verify_signedoff success Signed-off-by tag matches author and committer
conchuod/kdoc success Errors and warnings before: 0 this patch: 0
conchuod/build_rv64_clang_allmodconfig success Errors and warnings before: 0 this patch: 0
conchuod/module_param success Was 0 now: 0
conchuod/build_rv64_gcc_allmodconfig success Errors and warnings before: 0 this patch: 0
conchuod/alphanumeric_selects success Out of order selects before the patch: 729 and now 729
conchuod/build_rv32_defconfig success Build OK
conchuod/dtb_warn_rv64 success Errors and warnings before: 2 this patch: 2
conchuod/header_inline success No static functions without inline keyword in header files
conchuod/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
conchuod/source_inline success Was 0 now: 0
conchuod/build_rv64_nommu_k210_defconfig success Build OK
conchuod/verify_fixes success No Fixes tag
conchuod/build_rv64_nommu_virt_defconfig success Build OK

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;
+}