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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Ira Weiny <ira.weiny@intel.com>,
        Jonathan Cameron <Jonathan.Cameron@huawei.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.18 633/879] cxl/mem: Drop mem_enabled check from wait_for_media()
Date:   Tue,  7 Jun 2022 19:02:31 +0200
Message-Id: <20220607165021.221735935@linuxfoundation.org>
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From: Dan Williams <dan.j.williams@intel.com>

[ Upstream commit 2bcf3bbd348fc10260aa6243ff6a22a1882b5b35 ]

Media ready is asserted by the device independent of whether mem_enabled
was ever set. Drop this check to allow for dropping wait_for_media() in
favor of ->wait_media_ready().

Fixes: 8dd2bc0f8e02 ("cxl/mem: Add the cxl_mem driver")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/165291685501.1426646.10372821863672431074.stgit@dwillia2-xfh
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/cxl/mem.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
index 49a4b1c47299..44e899f06094 100644
--- a/drivers/cxl/mem.c
+++ b/drivers/cxl/mem.c
@@ -27,12 +27,8 @@
 static int wait_for_media(struct cxl_memdev *cxlmd)
 {
 	struct cxl_dev_state *cxlds = cxlmd->cxlds;
-	struct cxl_endpoint_dvsec_info *info = &cxlds->info;
 	int rc;
 
-	if (!info->mem_enabled)
-		return -EBUSY;
-
 	rc = cxlds->wait_media_ready(cxlds);
 	if (rc)
 		return rc;
-- 
2.35.1