linux-kernel - [PATCH 12/12] riscv: disable the EFI PECOFF header for M-mode

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Message-Id: <20191028121043.22934-13-hch@lst.de>
Date:   Mon, 28 Oct 2019 13:10:43 +0100
From:   Christoph Hellwig <hch@....de>
To:     Palmer Dabbelt <palmer@...ive.com>,
        Paul Walmsley <paul.walmsley@...ive.com>
Cc:     Damien Le Moal <damien.lemoal@....com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Anup Patel <anup@...infault.org>
Subject: [PATCH 12/12] riscv: disable the EFI PECOFF header for M-mode

No point in bloating the kernel image with a bootloader header if
we run bare metal.

Signed-off-by: Christoph Hellwig <hch@....de>
Reviewed-by: Anup Patel <anup@...infault.org>
---
 arch/riscv/kernel/head.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index 84a6f0a4b120..9bca97ffb67a 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -16,6 +16,7 @@
 
 __INIT
 ENTRY(_start)
+#ifndef CONFIG_RISCV_M_MODE
 	/*
 	 * Image header expected by Linux boot-loaders. The image header data
 	 * structure is described in asm/image.h.
@@ -47,6 +48,7 @@ ENTRY(_start)
 
 .global _start_kernel
 _start_kernel:
+#endif /* CONFIG_RISCV_M_MODE */
 	/* Mask all interrupts */
 	csrw CSR_IE, zero
 	csrw CSR_IP, zero
-- 
2.20.1