Commit 8dec6bd4 authored Aug 19, 2019 by Vasily Gorbik

s390/pci: avoid using strncmp with hardcoded length



Command line option values passed to __setup callbacks are always
null-terminated and "s390_iommu=" may only accept "strict" as value.
So replace strncmp with strcmp.

While at it also make s390_iommu_setup return 1, which means this
command line option is handled by this callback.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

parent 759d4899

arch/s390/pci/pci_dma.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -674,9 +674,9 @@ EXPORT_SYMBOL_GPL(s390_pci_dma_ops);

		static int __init s390_iommu_setup(char *str)
		{
		if (!strncmp(str, "strict", 6))
		if (!strcmp(str, "strict"))
		s390_iommu_strict = 1;
		return 0;
		return 1;
		}

		__setup("s390_iommu=", s390_iommu_setup);

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