FAILED: patch "[PATCH] drm/amd/dc/dce120: Fix audio register mapping, stop" failed to apply to 6.0-stable tree

The patch below does not apply to the 6.0-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

Possible dependencies:

6110a80f31b7 ("drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 6110a80f31b74773a28394259695513e0ac38406 Mon Sep 17 00:00:00 2001
From: Lyude Paul <[email protected]>
Date: Mon, 14 Nov 2022 17:20:45 -0500
Subject: [PATCH] drm/amd/dc/dce120: Fix audio register mapping, stop
triggering KASAN

There's been a very long running bug that seems to have been neglected for a while, where amdgpu consistently triggers a KASAN error at start:

  BUG: KASAN: global-out-of-bounds in read_indirect_azalia_reg+0x1d4/0x2a0 [amdgpu]
  Read of size 4 at addr ffffffffc2274b28 by task modprobe/1889

After digging through amd's rather creative method for accessing registers, I eventually discovered the problem likely has to do with the fact that on my dce120 GPU there are supposedly 7 sets of audio registers. But we only define a register mapping for 6 sets.

So, fix this and fix the KASAN warning finally.

index 1b70b78e2fa1..af631085e88c 100644
@@ -359,7 +359,8 @@ static const struct dce_audio_registers audio_regs[] = {
 	audio_regs(2),
 	audio_regs(3),
 	audio_regs(4),
-	audio_regs(5)
+	audio_regs(5),
+	audio_regs(6),
 };
 
 #define DCE120_AUD_COMMON_MASK_SH_LIST(mask_sh)\