nvmem: jz4780-efuse: fix build warnings on ARCH=x86_64 or riscv
kbuild-robot did find a type error in the min(a, b) function used by this driver if built for x86_64 or riscv. Althought it is very unlikely that this driver is built for those platforms it could be used as a template for something else and therefore should be correct. The problem is that we implicitly cast a size_t to unsigned int inside the implementation of the min() function. Since size_t may differ on different compilers and plaforms there may be warnings or not. So let's use only size_t variables on all platforms. Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: srinivas.kandagatla@linaro.org Cc: prasannatsmkumar@gmail.com Cc: malat@debian.org Cc: paul@crapouillou.net Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20200310132257.23358-15-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -72,9 +72,9 @@ static int jz4780_efuse_read(void *context, unsigned int offset,
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struct jz4780_efuse *efuse = context;
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while (bytes > 0) {
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unsigned int start = offset & ~(JZ_EFU_READ_SIZE - 1);
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unsigned int chunk = min(bytes, (start + JZ_EFU_READ_SIZE)
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- offset);
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size_t start = offset & ~(JZ_EFU_READ_SIZE - 1);
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size_t chunk = min(bytes, (start + JZ_EFU_READ_SIZE)
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- offset);
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char buf[JZ_EFU_READ_SIZE];
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unsigned int tmp;
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u32 ctrl;
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