releases/6.17.3/crypto-hisilicon-zip-remove-unnecessary-validation-f.patch

From f365f5fa510f2be67aff9dc638efe480d06feb5c Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Thu, 21 Aug 2025 09:38:04 +0800
Subject: crypto: hisilicon/zip - remove unnecessary validation for
 high-performance mode configurations

From: Chenghai Huang <huangchenghai2@huawei.com>

[ Upstream commit d4e081510471e79171c4e0a11f6cb608e49bc082 ]

When configuring the high-performance mode register, there is no
need to verify whether the register has been successfully
enabled, as there is no possibility of a write failure for this
register.

Fixes: a9864bae1806 ("crypto: hisilicon/zip - add zip comp high perf mode configuration")
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/hisilicon/zip/zip_main.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index d8ba23b7cc7dd..fb7b19927dd32 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -448,10 +448,9 @@ bool hisi_zip_alg_support(struct hisi_qm *qm, u32 alg)
 	return false;
 }
 
-static int hisi_zip_set_high_perf(struct hisi_qm *qm)
+static void hisi_zip_set_high_perf(struct hisi_qm *qm)
 {
 	u32 val;
-	int ret;
 
 	val = readl_relaxed(qm->io_base + HZIP_HIGH_PERF_OFFSET);
 	if (perf_mode == HZIP_HIGH_COMP_PERF)
@@ -461,13 +460,6 @@ static int hisi_zip_set_high_perf(struct hisi_qm *qm)
 
 	/* Set perf mode */
 	writel(val, qm->io_base + HZIP_HIGH_PERF_OFFSET);
-	ret = readl_relaxed_poll_timeout(qm->io_base + HZIP_HIGH_PERF_OFFSET,
-					 val, val == perf_mode, HZIP_DELAY_1_US,
-					 HZIP_POLL_TIMEOUT_US);
-	if (ret)
-		pci_err(qm->pdev, "failed to set perf mode\n");
-
-	return ret;
 }
 
 static void hisi_zip_open_sva_prefetch(struct hisi_qm *qm)
@@ -1251,9 +1243,7 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
 	if (ret)
 		return ret;
 
-	ret = hisi_zip_set_high_perf(qm);
-	if (ret)
-		return ret;
+	hisi_zip_set_high_perf(qm);
 
 	hisi_zip_open_sva_prefetch(qm);
 	hisi_qm_dev_err_init(qm);
-- 
2.51.0