* [PATCH 03/12] dma-debug: Replace strncmp with str_has_prefix
@ 2019-07-29 15:14 Chuhong Yuan
0 siblings, 0 replies; only message in thread
From: Chuhong Yuan @ 2019-07-29 15:14 UTC (permalink / raw)
Cc: Christoph Hellwig, Marek Szyprowski, Robin Murphy, iommu,
linux-kernel, Chuhong Yuan
strncmp(str, const, len) is error-prone.
We had better use newly introduced
str_has_prefix() instead of it.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
kernel/dma/debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 099002d84f46..0f9e1aba3e1a 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -970,7 +970,7 @@ static __init int dma_debug_cmdline(char *str)
if (!str)
return -EINVAL;
- if (strncmp(str, "off", 3) == 0) {
+ if (str_has_prefix(str, "off")) {
pr_info("debugging disabled on kernel command line\n");
global_disable = true;
}
--
2.20.1
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