linux-kernel - [PATCH v4 2/3] riscv: Define AT_VECTOR_SIZE_ARCH for ARCH

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Message-Id: <c822805d45654074bb392126ed68915f7284b74a.1598859038.git.zong.li@sifive.com>
Date:   Mon, 31 Aug 2020 15:33:49 +0800
From:   Zong Li <zong.li@...ive.com>
To:     palmer@...belt.com, paul.walmsley@...ive.com,
        david.abdurachmanov@...ive.com, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Zong Li <zong.li@...ive.com>,
        Palmer Dabbelt <palmerdabbelt@...gle.com>
Subject: [PATCH v4 2/3] riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO

AT_VECTOR_SIZE_ARCH should be defined with the maximum number of
NEW_AUX_ENT entries that ARCH_DLINFO can contain, but it wasn't defined
for RISC-V at all even though ARCH_DLINFO will contain one NEW_AUX_ENT
for the VDSO address.

Signed-off-by: Zong Li <zong.li@...ive.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
---
 arch/riscv/include/uapi/asm/auxvec.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/riscv/include/uapi/asm/auxvec.h b/arch/riscv/include/uapi/asm/auxvec.h
index d86cb17bbabe..22e0ae888406 100644
--- a/arch/riscv/include/uapi/asm/auxvec.h
+++ b/arch/riscv/include/uapi/asm/auxvec.h
@@ -10,4 +10,7 @@
 /* vDSO location */
 #define AT_SYSINFO_EHDR 33
 
+/* entries in ARCH_DLINFO */
+#define AT_VECTOR_SIZE_ARCH	1
+
 #endif /* _UAPI_ASM_RISCV_AUXVEC_H */
-- 
2.28.0