From: Xiang W <wxjstz@126.com>
Date: Thu, 16 Sep 2021 04:32:50 +0000 (+0800)
Subject: lib: sbi: Add BUG() macro for csr_read/write_num() and misa_string()
X-Git-Tag: v1.3~442
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=51113fe2a5ac6b5a712f2e5393347bf24194c09b;p=platform%2Fkernel%2Fopensbi-spacemit.git

lib: sbi: Add BUG() macro for csr_read/write_num() and misa_string()

We use BUG() macro in csr_read_num(), csr_write_num(), and
misa_string() functions for unhandled cases.

Signed-off-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
---

diff --git a/lib/sbi/riscv_asm.c b/lib/sbi/riscv_asm.c
index d7b9b2b..f6b8c8e 100644
--- a/lib/sbi/riscv_asm.c
+++ b/lib/sbi/riscv_asm.c
@@ -11,6 +11,7 @@
 #include <sbi/riscv_encoding.h>
 #include <sbi/sbi_error.h>
 #include <sbi/sbi_platform.h>
+#include <sbi/sbi_console.h>
 
 /* determine CPU extension, return non-zero support */
 int misa_extension_imp(char ext)
@@ -75,6 +76,7 @@ void misa_string(int xlen, char *out, unsigned int out_sz)
 			out[pos++] = '8';
 			break;
 		default:
+			BUG();
 			return;
 		}
 	}
@@ -134,6 +136,7 @@ unsigned long csr_read_num(int csr_num)
 #endif
 
 	default:
+		BUG();
 		break;
 	};
 
@@ -197,6 +200,7 @@ void csr_write_num(int csr_num, unsigned long val)
 	switchcase_csr_write_16(CSR_MHPMEVENT16, val)
 
 	default:
+		BUG();
 		break;
 	};