Claude review: drm/radeon: replace nested min calls with min3

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

Patch Review

**Status:** Reviewed-by worthy

The patch modifies two functions that are structurally identical across two files:

- `dce8_available_bandwidth()` in `drivers/gpu/drm/radeon/cik.c`
- `dce6_available_bandwidth()` in `drivers/gpu/drm/radeon/si.c`

In both cases, the change is:
```c
-	return min(dram_bandwidth, min(data_return_bandwidth, dmif_req_bandwidth));
+	return min3(dram_bandwidth, data_return_bandwidth, dmif_req_bandwidth);
```

**Correctness:** The kernel's `min3()` macro (from `linux/minmax.h`) is equivalent to `min(a, min(b, c))`, so this is a no-op in terms of behavior. All three variables are `u32`, so there are no type-promotion concerns.

**Commit message:** Accurate and concise. Correctly names both affected functions.

**No issues found.** This is a clean readability improvement with no risk.

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Generated by Claude Code Patch Reviewer