Claude review: iopoll: fix function parameter names in read_poll_timeout_atomic()

[Claude Code Review Bot <claude-review@example.com>]

Patch Review

**Purpose:** Fix kernel-doc warnings by renaming macro parameters `sleep_us` → `delay_us` and `sleep_before_read` → `delay_before_read` to match the existing kernel-doc block.

**Analysis:**

The kernel-doc block documents:
```
 * @delay_us: Time to udelay between reads in us ...
 * @delay_before_read: if it is true, delay @delay_us before read.
```

But the old macro definition used:
```c
#define read_poll_timeout_atomic(op, val, cond, sleep_us, timeout_us, \
				 sleep_before_read, args...) \
	poll_timeout_us_atomic((val) = op(args), cond, sleep_us, timeout_us, sleep_before_read)
```

The fix renames the parameters consistently:
```c
#define read_poll_timeout_atomic(op, val, cond, delay_us, timeout_us, \
				 delay_before_read, args...) \
	poll_timeout_us_atomic((val) = op(args), cond, delay_us, timeout_us, delay_before_read)
```

This is a pure rename of macro parameter names—since these are positional macro parameters, callers are completely unaffected. The name change is also semantically correct: this is the `_atomic` variant that uses `udelay()` (busy-wait delay), not `usleep_range()` (sleeping), so "delay" is the appropriate term. The non-atomic `read_poll_timeout()` correctly retains `sleep_us`/`sleep_before_read` at line 143-145.

The additional fix on the comment line changing `delay_us` to `@delay_us` (adding the kernel-doc parameter reference marker) is a nice minor improvement.

The `Fixes:` tag correctly references the commit that introduced the mismatch.

**Reviewed-by: No issues found.** This is a clean, minimal documentation/naming fix.

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Generated by Claude Code Patch Reviewer