Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/scsi/arm/scsi.h b/drivers/scsi/arm/scsi.h
new file mode 100644
index 0000000..2f1b3f4
--- /dev/null
+++ b/drivers/scsi/arm/scsi.h
@@ -0,0 +1,115 @@
+/*
+ * linux/drivers/acorn/scsi/scsi.h
+ *
+ * Copyright (C) 2002 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Commonly used scsi driver functions.
+ */
+
+#define BELT_AND_BRACES
+
+/*
+ * The scatter-gather list handling. This contains all
+ * the yucky stuff that needs to be fixed properly.
+ */
+static inline int copy_SCp_to_sg(struct scatterlist *sg, Scsi_Pointer *SCp, int max)
+{
+ int bufs = SCp->buffers_residual;
+
+ BUG_ON(bufs + 1 > max);
+
+ sg->page = virt_to_page(SCp->ptr);
+ sg->offset = offset_in_page(SCp->ptr);
+ sg->length = SCp->this_residual;
+
+ if (bufs)
+ memcpy(sg + 1, SCp->buffer + 1,
+ sizeof(struct scatterlist) * bufs);
+ return bufs + 1;
+}
+
+static inline int next_SCp(Scsi_Pointer *SCp)
+{
+ int ret = SCp->buffers_residual;
+ if (ret) {
+ SCp->buffer++;
+ SCp->buffers_residual--;
+ SCp->ptr = (char *)
+ (page_address(SCp->buffer->page) +
+ SCp->buffer->offset);
+ SCp->this_residual = SCp->buffer->length;
+ } else {
+ SCp->ptr = NULL;
+ SCp->this_residual = 0;
+ }
+ return ret;
+}
+
+static inline unsigned char get_next_SCp_byte(Scsi_Pointer *SCp)
+{
+ char c = *SCp->ptr;
+
+ SCp->ptr += 1;
+ SCp->this_residual -= 1;
+
+ return c;
+}
+
+static inline void put_next_SCp_byte(Scsi_Pointer *SCp, unsigned char c)
+{
+ *SCp->ptr = c;
+ SCp->ptr += 1;
+ SCp->this_residual -= 1;
+}
+
+static inline void init_SCp(Scsi_Cmnd *SCpnt)
+{
+ memset(&SCpnt->SCp, 0, sizeof(struct scsi_pointer));
+
+ if (SCpnt->use_sg) {
+ unsigned long len = 0;
+ int buf;
+
+ SCpnt->SCp.buffer = (struct scatterlist *) SCpnt->buffer;
+ SCpnt->SCp.buffers_residual = SCpnt->use_sg - 1;
+ SCpnt->SCp.ptr = (char *)
+ (page_address(SCpnt->SCp.buffer->page) +
+ SCpnt->SCp.buffer->offset);
+ SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length;
+
+#ifdef BELT_AND_BRACES
+ /*
+ * Calculate correct buffer length. Some commands
+ * come in with the wrong request_bufflen.
+ */
+ for (buf = 0; buf <= SCpnt->SCp.buffers_residual; buf++)
+ len += SCpnt->SCp.buffer[buf].length;
+
+ if (SCpnt->request_bufflen != len)
+ printk(KERN_WARNING "scsi%d.%c: bad request buffer "
+ "length %d, should be %ld\n", SCpnt->device->host->host_no,
+ '0' + SCpnt->device->id, SCpnt->request_bufflen, len);
+ SCpnt->request_bufflen = len;
+#endif
+ } else {
+ SCpnt->SCp.ptr = (unsigned char *)SCpnt->request_buffer;
+ SCpnt->SCp.this_residual = SCpnt->request_bufflen;
+ }
+
+ /*
+ * If the upper SCSI layers pass a buffer, but zero length,
+ * we aren't interested in the buffer pointer.
+ */
+ if (SCpnt->SCp.this_residual == 0 && SCpnt->SCp.ptr) {
+#if 0 //def BELT_AND_BRACES
+ printk(KERN_WARNING "scsi%d.%c: zero length buffer passed for "
+ "command ", SCpnt->host->host_no, '0' + SCpnt->target);
+ print_command(SCpnt->cmnd);
+#endif
+ SCpnt->SCp.ptr = NULL;
+ }
+}