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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Takashi Iwai <tiwai@suse.de>, Kalle Valo <kvalo@codeaurora.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-wireless@vger.kernel.org,
	brcm80211-dev-list.pdl@broadcom.com,
	brcm80211-dev-list@cypress.com, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 059/191] brcmsmac: Use kvmalloc() for ucode allocations
Date: Sat,  9 Nov 2019 21:38:01 -0500
Message-ID: <20191110024013.29782-59-sashal@kernel.org> (raw)
In-Reply-To: <20191110024013.29782-1-sashal@kernel.org>

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 6c3efbe77bc78bf49db851aec7f385be475afca6 ]

The ucode chunk might be relatively large and the allocation with
kmalloc() may fail occasionally.  Since the data isn't DMA-transferred
but by manual loops, we can use vmalloc instead of kmalloc.
For a better performance, though, kvmalloc() would be the best choice
in such a case, so let's replace with it.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1103431
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
index ecc89e718b9c1..6255fb6d97a70 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
@@ -1578,10 +1578,10 @@ int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
 			if (le32_to_cpu(hdr->idx) == idx) {
 				pdata = wl->fw.fw_bin[i]->data +
 					le32_to_cpu(hdr->offset);
-				*pbuf = kmemdup(pdata, len, GFP_KERNEL);
+				*pbuf = kvmalloc(len, GFP_KERNEL);
 				if (*pbuf == NULL)
 					goto fail;
-
+				memcpy(*pbuf, pdata, len);
 				return 0;
 			}
 		}
@@ -1629,7 +1629,7 @@ int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
  */
 void brcms_ucode_free_buf(void *p)
 {
-	kfree(p);
+	kvfree(p);
 }
 
 /*
-- 
2.20.1


  parent reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191110024013.29782-1-sashal@kernel.org>
2019-11-10  2:38 ` [PATCH AUTOSEL 4.19 058/191] brcmfmac: increase buffer for obtaining firmware capabilities Sasha Levin
2019-11-10  2:38 ` Sasha Levin [this message]
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 160/191] iwlwifi: dbg: don't crash if the firmware crashes in the middle of a debug dump Sasha Levin
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 161/191] iwlwifi: fix non_shared_ant for 22000 devices Sasha Levin
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 162/191] iwlwifi: pcie: read correct prph address for newer devices Sasha Levin
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 163/191] iwlwifi: api: annotate compressed BA notif array sizes Sasha Levin
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 164/191] iwlwifi: pcie: gen2: build A-MSDU only for GSO Sasha Levin
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 165/191] iwlwifi: pcie: fit reclaim msg to MAX_MSG_LEN Sasha Levin
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 166/191] iwlwifi: mvm: use correct FIFO length Sasha Levin
2019-11-10  2:39 ` [PATCH AUTOSEL 4.19 167/191] iwlwifi: mvm: Allow TKIP for AP mode Sasha Levin

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