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[v10,01/15] ufs: qcom: fix crypto key eviction

Message ID 20241213041958.202565-2-ebiggers@kernel.org
State New
Headers show
Series Support for hardware-wrapped inline encryption keys | expand

Commit Message

Eric Biggers Dec. 13, 2024, 4:19 a.m. UTC 
From: Eric Biggers <ebiggers@google.com>

Commit 56541c7c4468 ("scsi: ufs: ufs-qcom: Switch to the new ICE API")
introduced an incorrect check of the algorithm ID into the key eviction
path, and thus qcom_ice_evict_key() is no longer ever called.  Fix it.

Fixes: 56541c7c4468 ("scsi: ufs: ufs-qcom: Switch to the new ICE API")
Cc: stable@vger.kernel.org
Cc: Abel Vesa <abel.vesa@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 drivers/ufs/host/ufs-qcom.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)
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Patch

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 68040b2ab5f8..e33ae71245dd 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -153,27 +153,25 @@  static int ufs_qcom_ice_program_key(struct ufs_hba *hba,
 				    const union ufs_crypto_cfg_entry *cfg,
 				    int slot)
 {
 	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
 	union ufs_crypto_cap_entry cap;
-	bool config_enable =
-		cfg->config_enable & UFS_CRYPTO_CONFIGURATION_ENABLE;
+
+	if (!(cfg->config_enable & UFS_CRYPTO_CONFIGURATION_ENABLE))
+		return qcom_ice_evict_key(host->ice, slot);
 
 	/* Only AES-256-XTS has been tested so far. */
 	cap = hba->crypto_cap_array[cfg->crypto_cap_idx];
 	if (cap.algorithm_id != UFS_CRYPTO_ALG_AES_XTS ||
 	    cap.key_size != UFS_CRYPTO_KEY_SIZE_256)
 		return -EOPNOTSUPP;
 
-	if (config_enable)
-		return qcom_ice_program_key(host->ice,
-					    QCOM_ICE_CRYPTO_ALG_AES_XTS,
-					    QCOM_ICE_CRYPTO_KEY_SIZE_256,
-					    cfg->crypto_key,
-					    cfg->data_unit_size, slot);
-	else
-		return qcom_ice_evict_key(host->ice, slot);
+	return qcom_ice_program_key(host->ice,
+				    QCOM_ICE_CRYPTO_ALG_AES_XTS,
+				    QCOM_ICE_CRYPTO_KEY_SIZE_256,
+				    cfg->crypto_key,
+				    cfg->data_unit_size, slot);
 }
 
 #else
 
 #define ufs_qcom_ice_program_key NULL