add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/include/scsi/scsi.h
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@@ -88,6 +88,21 @@
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 	return (lun & 0xff00) == SCSI_W_LUN_BASE;
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 }
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+/**
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+ * scsi_status_is_check_condition - check the status return.
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+ *
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+ * @status: the status passed up from the driver (including host and
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+ *          driver components)
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+ *
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+ * This returns true if the status code is SAM_STAT_CHECK_CONDITION.
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+ */
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+static inline int scsi_status_is_check_condition(int status)
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+{
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+	if (status < 0)
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+		return false;
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+	status &= 0xfe;
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+	return status == SAM_STAT_CHECK_CONDITION;
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+}
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 /*
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  *  MESSAGE CODES
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@@ -273,11 +288,5 @@
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 /* Used to obtain the PCI location of a device */
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 #define SCSI_IOCTL_GET_PCI		0x5387
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-
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-/* Pull a u32 out of a SCSI message (using BE SCSI conventions) */
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-static inline __u32 scsi_to_u32(__u8 *ptr)
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-{
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-	return (ptr[0]<<24) + (ptr[1]<<16) + (ptr[2]<<8) + ptr[3];
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-}
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 #endif /* _SCSI_SCSI_H */