From f9396fc8143e0d86f261d1b4c3441c3d42a2b622 Mon Sep 17 00:00:00 2001
From: Trevor Porter <tkporter4@gmail.com>
Date: Thu, 12 Dec 2024 03:50:44 +0000
Subject: [PATCH] fix: on SVM collateral warp routes, specify the mint when
 transferring out as readonly (#4905)

### Description

- This was surfaced a while back but we never made the tweak -- on the
collateral warp routes, the account infos exposed to the relayer
informing it how to process a message ask for the token mint to be
writeable. This isn't necessary - it can be read-only because nothing is
changing in the data of the token mint. A consequence of this is that we
need to pay higher fees for accounts that have very high contention
(like USDC)
- We have strong test coverage here - if this change wasn't possible,
our Sealevel tests would fail

### Drive-by changes

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Are there any minor or drive-by changes also included?
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### Related issues

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- Fixes #[issue number here]
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### Backward compatibility

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implications, e.g. changes that would prohibit deploying older commits
using this infra tooling?

Yes/No
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### Testing

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What kind of testing have these changes undergone?

None/Manual/Unit Tests
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---
 .../programs/hyperlane-sealevel-token-collateral/src/plugin.rs  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rust/sealevel/programs/hyperlane-sealevel-token-collateral/src/plugin.rs b/rust/sealevel/programs/hyperlane-sealevel-token-collateral/src/plugin.rs
index 0fc224667e..ff8cf8dd7b 100644
--- a/rust/sealevel/programs/hyperlane-sealevel-token-collateral/src/plugin.rs
+++ b/rust/sealevel/programs/hyperlane-sealevel-token-collateral/src/plugin.rs
@@ -444,7 +444,7 @@ impl HyperlaneSealevelTokenPlugin for CollateralPlugin {
             vec![
                 AccountMeta::new_readonly(token.plugin_data.spl_token_program, false).into(),
                 AccountMeta::new_readonly(spl_associated_token_account::id(), false).into(),
-                AccountMeta::new(token.plugin_data.mint, false).into(),
+                AccountMeta::new_readonly(token.plugin_data.mint, false).into(),
                 AccountMeta::new(recipient_associated_token_account, false).into(),
                 AccountMeta::new(ata_payer_account_key, false).into(),
                 AccountMeta::new(token.plugin_data.escrow, false).into(),