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Add kernel 5.15 for RPI4 support

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Ycarus (Yannick Chabanois) 2021-11-24 18:32:01 +01:00
parent e961d478cd
commit df88a19bbd
638 changed files with 239907 additions and 0 deletions
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44
root/target/linux/bcm27xx/patches-5.15/0609-brcmfmac-Protect-against-reprobing.patch Normal file
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@ -0,0 +1,44 @@
From 8d9288ebfb3c1c5935ca1aac24ccee62559eab92 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Wed, 3 Nov 2021 11:53:13 +0000
Subject: [PATCH 609/634] brcmfmac: Protect against reprobing
It is important to reinitialise the firmware array pointers to protect
against the case that the brcmfmac driver is reprobed without first
being unloaded.
The potential hazard was noticed while investigating
https://github.com/raspberrypi/firmware/issues/1644 .
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 5b7118da6ed1..41a6509b5dc1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -662,8 +662,8 @@ static const struct brcmf_firmware_mapping sdio_fwnames[] = {
BRCMF_FW_ENTRY(CY_CC_43752_CHIP_ID, 0xFFFFFFFF, 43752)
};
-static const struct brcmf_firmware_mapping *brcmf_sdio_fwnames = sdio_fwnames;
-static u32 brcmf_sdio_fwnames_count = ARRAY_SIZE(sdio_fwnames);
+static const struct brcmf_firmware_mapping *brcmf_sdio_fwnames;
+static u32 brcmf_sdio_fwnames_count;
#define TXCTL_CREDITS 2
@@ -4557,6 +4557,8 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
brcmf_dbg(INFO, "completed!!\n");
+ brcmf_sdio_fwnames = sdio_fwnames;
+ brcmf_sdio_fwnames_count = ARRAY_SIZE(sdio_fwnames);
of_fwnames = brcmf_of_fwnames(sdiodev->dev, &of_fw_count);
if (of_fwnames)
fwnames = devm_kcalloc(sdiodev->dev,
--
2.33.1