From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
Thomas Winischhofer <thomas@winischhofer.net>,
linux-usb@vger.kernel.org
Subject: [PATCH 5.9 43/49] USB: sisusbvga: Make console support depend on BROKEN
Date: Sat, 19 Dec 2020 13:58:47 +0100 [thread overview]
Message-ID: <20201219125346.774463378@linuxfoundation.org> (raw)
In-Reply-To: <20201219125344.671832095@linuxfoundation.org>
From: Thomas Gleixner <tglx@linutronix.de>
commit 862ee699fefe1e6d6f2c1518395f0b999b8beb15 upstream.
The console part of sisusbvga is broken vs. printk(). It uses in_atomic()
to detect contexts in which it cannot sleep despite the big fat comment in
preempt.h which says: Do not use in_atomic() in driver code.
in_atomic() does not work on kernels with CONFIG_PREEMPT_COUNT=n which
means that spin/rw_lock held regions are not detected by it.
There is no way to make this work by handing context information through to
the driver and this only can be solved once the core printk infrastructure
supports sleepable console drivers.
Make it depend on BROKEN for now.
Fixes: 1bbb4f2035d9 ("[PATCH] USB: sisusb[vga] update")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201019101109.603244207@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/misc/sisusbvga/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/misc/sisusbvga/Kconfig
+++ b/drivers/usb/misc/sisusbvga/Kconfig
@@ -16,7 +16,7 @@ config USB_SISUSBVGA
config USB_SISUSBVGA_CON
bool "Text console and mode switching support" if USB_SISUSBVGA
- depends on VT
+ depends on VT && BROKEN
select FONT_8x16
help
Say Y here if you want a VGA text console via the USB dongle or
next prev parent reply other threads:[~2020-12-19 13:02 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-19 12:58 [PATCH 5.9 00/49] 5.9.16-rc1 review Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 01/49] ptrace: Prevent kernel-infoleak in ptrace_get_syscall_info() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 02/49] net/sched: fq_pie: initialize timer earlier in fq_pie_init() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 03/49] net: ipa: pass the correct size when freeing DMA memory Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 04/49] ipv4: fix error return code in rtm_to_fib_config() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 05/49] mac80211: mesh: fix mesh_pathtbl_init() error path Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 06/49] net: bridge: vlan: fix error return code in __vlan_add() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 07/49] vrf: packets with lladdr src needs dst at input with orig_iif when needs strict Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 08/49] net: mscc: ocelot: fix dropping of unknown IPv4 multicast on Seville Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 09/49] net: hns3: remove a misused pragma packed Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 10/49] udp: fix the proto value passed to ip_protocol_deliver_rcu for the segments Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 11/49] enetc: Fix reporting of h/w packet counters Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 12/49] bridge: Fix a deadlock when enabling multicast snooping Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 13/49] mptcp: print new line in mptcp_seq_show() if mptcp isnt in use Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 14/49] net: stmmac: dwmac-meson8b: fix mask definition of the m250_sel mux Greg Kroah-Hartman
2020-12-19 21:51 ` Pavel Machek
2020-12-19 22:38 ` Martin Blumenstingl
2020-12-19 23:13 ` Pavel Machek
2020-12-21 14:31 ` Martin Blumenstingl
2020-12-19 12:58 ` [PATCH 5.9 15/49] net: stmmac: start phylink instance before stmmac_hw_setup() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 16/49] net: stmmac: free tx skb buffer in stmmac_resume() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 17/49] net: stmmac: delete the eee_ctrl_timer after napi disabled Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 18/49] net: stmmac: overwrite the dma_cap.addr64 according to HW design Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 19/49] net: ll_temac: Fix potential NULL dereference in temac_probe() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 20/49] tcp: select sane initial rcvq_space.space for big MSS Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 21/49] e1000e: fix S0ix flow to allow S0i3.2 subset entry Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 22/49] ethtool: fix stack overflow in ethnl_parse_bitset() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 23/49] tcp: fix cwnd-limited bug for TSO deferral where we send nothing Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 24/49] net: flow_offload: Fix memory leak for indirect flow block Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 25/49] net/mlx4_en: Avoid scheduling restart task if it is already running Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 26/49] net/mlx4_en: Handle TX error CQE Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 27/49] net: sched: Fix dump of MPLS_OPT_LSE_LABEL attribute in cls_flower Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 28/49] bonding: fix feature flag setting at init time Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 29/49] ch_ktls: fix build warning for ipv4-only config Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 30/49] lan743x: fix for potential NULL pointer dereference with bare card Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 31/49] net: stmmac: increase the timeout for dma reset Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 32/49] net: tipc: prevent possible null deref of link Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 33/49] ktest.pl: If size of log is too big to email, email error message Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 34/49] ktest.pl: Fix the logic for truncating the size of the log file for email Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 35/49] USB: dummy-hcd: Fix uninitialized array use in init() Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 36/49] USB: add RESET_RESUME quirk for Snapscan 1212 Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 37/49] ALSA: usb-audio: Fix potential out-of-bounds shift Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 38/49] ALSA: usb-audio: Fix control access overflow errors from chmap Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 39/49] xhci: Give USB2 ports time to enter U3 in bus suspend Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 40/49] xhci-pci: Allow host runtime PM as default for Intel Alpine Ridge LP Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 41/49] xhci-pci: Allow host runtime PM as default for Intel Maple Ridge xHCI Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 42/49] USB: UAS: introduce a quirk to set no_write_same Greg Kroah-Hartman
2020-12-19 12:58 ` Greg Kroah-Hartman [this message]
2020-12-19 12:58 ` [PATCH 5.9 44/49] ALSA: pcm: oss: Fix potential out-of-bounds shift Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 45/49] serial: 8250_omap: Avoid FIFO corruption caused by MDR1 access Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 46/49] KVM: mmu: Fix SPTE encoding of MMIO generation upper half Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 47/49] membarrier: Explicitly sync remote cores when SYNC_CORE is requested Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 48/49] x86/resctrl: Remove unused struct mbm_state::chunks_bw Greg Kroah-Hartman
2020-12-19 12:58 ` [PATCH 5.9 49/49] x86/resctrl: Fix incorrect local bandwidth when mba_sc is enabled Greg Kroah-Hartman
2020-12-19 21:49 ` [PATCH 5.9 00/49] 5.9.16-rc1 review Guenter Roeck
2020-12-20 3:51 ` Naresh Kamboju
2020-12-20 13:37 ` Jon Hunter
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