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From: Anup Patel <apatel@ventanamicro.com>
To: opensbi@lists.infradead.org
Subject: [PATCH] lib: utils/serial: Fix semihosting compile error using LLVM
Date: Tue,  8 Nov 2022 08:55:09 +0530	[thread overview]
Message-ID: <20221108032509.1382464-1-apatel@ventanamicro.com> (raw)

We fix the following semihosting compile error observed using LLVM:
lib/utils/serial/semihosting.c:158:12: error: result of comparison of constant -1 with expression of type 'char' is always true [-Werror,-Wtautological-constant-out-of-range-compare]
                ret = ch > -1 ? ch : -1;
                      ~~ ^ ~~

Fixes: 7f09fba86e43 ("lib: utils/serial: add semihosting support")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
 lib/utils/serial/semihosting.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/utils/serial/semihosting.c b/lib/utils/serial/semihosting.c
index 5012fa1..72bbbb3 100644
--- a/lib/utils/serial/semihosting.c
+++ b/lib/utils/serial/semihosting.c
@@ -155,7 +155,7 @@ static int semihosting_getc(void)
 
 	if (semihosting_infd < 0)  {
 		ch = semihosting_trap(SYSREADC, NULL);
-		ret = ch > -1 ? ch : -1;
+		ret = ((int)ch > -1) ? ch : -1;
 	} else
 		ret = semihosting_read(semihosting_infd, &ch, 1) > 0 ? ch : -1;
 
-- 
2.34.1



             reply	other threads:[~2022-11-08  3:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-08  3:25 Anup Patel [this message]
2022-11-08  9:02 ` [PATCH] lib: utils/serial: Fix semihosting compile error using LLVM Andreas Schwab
2022-11-08  9:46   ` Xiang W
2022-11-08 12:06     ` Anup Patel
2022-11-08 12:05   ` Anup Patel
2022-11-08  9:36 ` Xiang W

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