mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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76 lines
2.5 KiB
Diff
76 lines
2.5 KiB
Diff
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From 5bb646471da76d3d5cd02cf3da7a03ce6e3cb582 Mon Sep 17 00:00:00 2001
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From: Hamad Kadmany <hkadmany@codeaurora.org>
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Date: Sun, 18 Dec 2016 15:03:11 +0200
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Subject: wil6210: Block write ioctl to the card by default
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The ability to write to the card is used for debug purposes.
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The ability is disabled by default to prevent misuse of
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this functionality.
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CRs-Fixed: 1096945
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Change-Id: I8fc3f646a0127ec705239be6a7de858a4f805acc
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Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
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---
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drivers/net/wireless/ath/wil6210/Kconfig | 11 +++++++++++
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drivers/net/wireless/ath/wil6210/ioctl.c | 4 ++++
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2 files changed, 15 insertions(+)
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diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig
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index 481680a..eaa5a9d 100644
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--- a/drivers/net/wireless/ath/wil6210/Kconfig
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+++ b/drivers/net/wireless/ath/wil6210/Kconfig
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@@ -40,6 +40,17 @@ config WIL6210_TRACING
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If unsure, say Y to make it easier to debug problems.
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+config WIL6210_WRITE_IOCTL
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+ bool "wil6210 write ioctl to the device"
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+ depends on WIL6210
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+ default n
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+ ---help---
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+ Say Y here to allow write-access from user-space to
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+ the device memory through ioctl. This is useful for
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+ debugging purposes only.
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+
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+ If unsure, say N.
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+
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config WIL6210_PLATFORM_MSM
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bool "wil6210 MSM platform specific support"
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depends on WIL6210
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diff --git a/drivers/net/wireless/ath/wil6210/ioctl.c b/drivers/net/wireless/ath/wil6210/ioctl.c
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index e9c0673..f5ad473 100644
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--- a/drivers/net/wireless/ath/wil6210/ioctl.c
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+++ b/drivers/net/wireless/ath/wil6210/ioctl.c
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@@ -79,10 +79,12 @@ static int wil_ioc_memio_dword(struct wil6210_priv *wil, void __user *data)
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io.val = ioread32(a);
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need_copy = true;
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break;
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+#if defined(CONFIG_WIL6210_WRITE_IOCTL)
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case wil_mmio_write:
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iowrite32(io.val, a);
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wmb(); /* make sure write propagated to HW */
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break;
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+#endif
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default:
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wil_err(wil, "Unsupported operation, op = 0x%08x\n", io.op);
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return -EINVAL;
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@@ -139,6 +141,7 @@ static int wil_ioc_memio_block(struct wil6210_priv *wil, void __user *data)
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goto out_free;
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}
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break;
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+#if defined(CONFIG_WIL6210_WRITE_IOCTL)
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case wil_mmio_write:
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if (copy_from_user(block, io.block, io.size)) {
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rc = -EFAULT;
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@@ -148,6 +151,7 @@ static int wil_ioc_memio_block(struct wil6210_priv *wil, void __user *data)
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wmb(); /* make sure write propagated to HW */
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wil_hex_dump_ioctl("Write ", block, io.size);
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break;
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+#endif
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default:
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wil_err(wil, "Unsupported operation, op = 0x%08x\n", io.op);
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rc = -EINVAL;
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--
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cgit v1.1
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