tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
metag/uaccess: fix sparse errors
virtio wants to read bitwise types from userspace using get_user. At the
moment this triggers sparse errors, since the value is passed through an
integer.
Fix that up using __force.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
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arch/metag/include/asm/uaccess.h
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arch/metag/include/asm/uaccess.h
···
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({ \
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long __gu_err, __gu_val; \
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__get_user_size(__gu_val, (ptr), (size), __gu_err); \
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-
(x) = (__typeof__(*(ptr)))__gu_val; \
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+
(x) = (__force __typeof__(*(ptr)))__gu_val; \
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__gu_err; \
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})
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···
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const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \
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if (access_ok(VERIFY_READ, __gu_addr, size)) \
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__get_user_size(__gu_val, __gu_addr, (size), __gu_err); \
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(x) = (__typeof__(*(ptr)))__gu_val; \
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+
(x) = (__force __typeof__(*(ptr)))__gu_val; \
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__gu_err; \
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})
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