linux-kernel - [PATCH] firmware: Drop unused pages field from struct firmware

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Message-Id: <20200415164500.28749-1-tiwai@suse.de>
Date:   Wed, 15 Apr 2020 18:45:00 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] firmware: Drop unused pages field from struct firmware

The struct firmware contains a page table pointer that was used only
internally in the past.  Since the actual page tables are referred
from struct fw_priv and should be never from struct firmware, we can
drop this unused field gracefully.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
---
 drivers/base/firmware_loader/main.c | 3 ---
 include/linux/firmware.h            | 1 -
 2 files changed, 4 deletions(-)

diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index 76f79913916d..5296aaca35cf 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -548,9 +548,6 @@ static void firmware_free_data(const struct firmware *fw)
 static void fw_set_page_data(struct fw_priv *fw_priv, struct firmware *fw)
 {
 	fw->priv = fw_priv;
-#ifdef CONFIG_FW_LOADER_USER_HELPER
-	fw->pages = fw_priv->pages;
-#endif
 	fw->size = fw_priv->size;
 	fw->data = fw_priv->data;
 
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index 4bbd0afd91b7..cb3e2c06ed8a 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -12,7 +12,6 @@
 struct firmware {
 	size_t size;
 	const u8 *data;
-	struct page **pages;
 
 	/* firmware loader private fields */
 	void *priv;
-- 
2.25.0