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2019-10-24rtl8xxxu: fix warnings for symbol not declaredChris Chiu
Fix the following sparse warnings. sparse: symbol 'rtl8723bu_set_coex_with_type' was not declared. Should it be static? sparse: symbol 'rtl8723bu_update_bt_link_info' was not declared. Should it be static? sparse: symbol 'rtl8723bu_handle_bt_inquiry' was not declared. Should it be static? sparse: symbol 'rtl8723bu_handle_bt_info' was not declared. Should it be static? Signed-off-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24rtl8xxxu: remove set but not used variable 'rate_mask'YueHaibing
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:4484:6: warning: variable rate_mask set but not used [-Wunused-but-set-variable] It is never used since commit a9bb0b515778 ("rtl8xxxu: Improve TX performance of RTL8723BU on rtl8xxxu driver") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24atmel: remove set but not used variable 'dev'YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/wireless/atmel/atmel_cs.c:120:21: warning: variable dev set but not used [-Wunused-but-set-variable] It is never used, so can remove it. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24adm80211: remove set but not used variables 'mem_addr' and 'io_addr'YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/wireless/admtek/adm8211.c:1784:16: warning: variable mem_addr set but not used [-Wunused-but-set-variable] drivers/net/wireless/admtek/adm8211.c:1785:15: warning: variable io_addr set but not used [-Wunused-but-set-variable] They are never used, so can be removed. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24rtlwifi: Remove unnecessary NULL check in rtl_regd_initNathan Chancellor
When building with Clang + -Wtautological-pointer-compare: drivers/net/wireless/realtek/rtlwifi/regd.c:389:33: warning: comparison of address of 'rtlpriv->regd' equal to a null pointer is always false [-Wtautological-pointer-compare] if (wiphy == NULL || &rtlpriv->regd == NULL) ~~~~~~~~~^~~~ ~~~~ 1 warning generated. The address of an array member is never NULL unless it is the first struct member so remove the unnecessary check. This was addressed in the staging version of the driver in commit f986978b32b3 ("Staging: rtlwifi: remove unnecessary NULL check"). While we are here, fix the following checkpatch warning: CHECK: Comparison to NULL could be written "!wiphy" 35: FILE: drivers/net/wireless/realtek/rtlwifi/regd.c:389: + if (wiphy == NULL) Fixes: 0c8173385e54 ("rtl8192ce: Add new driver") Link:https://github.com/ClangBuiltLinux/linux/issues/750 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24rtw88: add phy_info debugfs to show Tx/Rx physical statusTsang-Shian Lin
This commit adds several Tx/Rx physical information to phy_info debugfs for 8822B/8822C. By this debugfs, we can know physical information, such as Tx/Rx rate, RSSI, EVM,SNR, etc. The information is gotten from the packets of Tx/Rx path. It has no impact for the performance of 8822B/8822C. In the fields, we may meet different kinds of problems, but we may have no professional instrument to check them. At this moment, this debugfs is a good tool, and it may provide useful information for debug. Signed-off-by: Tsang-Shian Lin <thlin@realtek.com> Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Reviewed-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24rtw88: add set_bitrate_mask supportTzu-En Huang
Support setting bit rate from upper layer. After configuring the original rate control result in the driver, the result is then masked by the bit rate mask received from the ops set_bitrate_mask. Lastly, the masked result will be sent to firmware. Signed-off-by: Tzu-En Huang <tehuang@realtek.com> Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Reviewed-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24rtw88: Enable 802.11ac beamformee supportTzu-En Huang
Enable MU-MIMO transmit beamformee support for chipset 8822b and 8822c. If the driver is in station mode and associated with an AP, and the capabilities of both meet the requirement of beamforming, driver will run as a beamformee and the corresponding chip settings will be set. In addition, module parameter support_bf is added to enable or disable beamforming. Sometimes driver will need to disable for inter-operate issues, and it would be easier for driver to debug. Signed-off-by: Tzu-En Huang <tehuang@realtek.com> Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24rtw88: add power tracking supportTzu-En Huang
The temperature of the chip can affect the output power of the RF components. Hence driver requires to compensate the power by adjusting the power index recorded in the power swing table. And if the difference of current thermal value to the default thermal value exceeds a threshold, the RF IQK should be triggered to re-calibrate the characteristics of the RF components, to keep the output IQ vectors of the RF components orthogonal enough. Signed-off-by: Tzu-En Huang <tehuang@realtek.com> Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Reviewed-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24rtw88: use macro to check the current bandYan-Hsuan Chuang
Add macros to see which band we are, based on the current channel. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-24bcma: fix block comment styleYadav Lamichhane
Fix a coding style issue. Signed-off-by: Yadav Lamichhane <tuxomega1@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-23net: phy: smsc: LAN8740: add PHY_RST_AFTER_CLK_EN flagMartin Fuzzey
The LAN8740, like the 8720, also requires a reset after enabling clock. The datasheet [1] 3.8.5.1 says: "During a Hardware reset, an external clock must be supplied to the XTAL1/CLKIN signal." I have observed this issue on a custom i.MX6 based board with the LAN8740A. [1] http://ww1.microchip.com/downloads/en/DeviceDoc/8740a.pdf Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23net: lan78xx: remove set but not used variable 'event'YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/usb/lan78xx.c:3995:6: warning: variable event set but not used [-Wunused-but-set-variable] It is never used, so can be removed. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23Merge branch 'mlxsw-Update-main-pool-computation-and-pool-size-limits'David S. Miller
Ido Schimmel says: ==================== mlxsw: Update main pool computation and pool size limits Petr says: In Spectrum ASICs, the shared buffer is an area of memory where packets are kept until they can be transmitted. There are two resources associated with shared buffer size: cap_total_buffer_size and cap_guaranteed_shared_buffer. So far, mlxsw has been using the former as a limit when validating shared buffer pool size configuration. However, the total size also includes headrooms and reserved space, which really cannot be used for shared buffer pools. Patch #1 mends this and has mlxsw use the guaranteed size. To configure default pool sizes, mlxsw has historically hard-coded one or two smallish pools, and one "main" pool that took most of the shared buffer (that would be pool 0 on ingress and pool 4 on egress). During the development of Spectrum-2, it became clear that the shared buffer size keeps shrinking as bugs are identified and worked around. In order to prevent having to tweak the size of pools 0 and 4 to catch up with updates to values reported by the FW, patch #2 changes the way these pools are set. Instead of hard-coding a fixed value, the main pool now takes whatever is left from the guaranteed size after the smaller pool(s) are taken into account. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23mlxsw: spectrum_buffers: Calculate the size of the main poolPetr Machata
Instead of hard-coding the size of the largest pool, calculate it from the reported guaranteed shared buffer size and sizes of other pools (currently only the CPU port pool). Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23mlxsw: spectrum: Use guaranteed buffer size as pool size limitPetr Machata
There are two resources associated with shared buffer size: cap_total_buffer_size, and cap_guaranteed_shared_buffer. So far, mlxsw has been using the former as a limit to determine how large a pool size is allowed to be. However, the total size also includes headrooms and reserved space, which really cannot be used for shared buffer pools. Therefore convert mlxsw to use the latter resource as a limit. Adjust hard-coded pool sizes to be the guaranteed size minus 256000 bytes for CPU port pool. On Spectrum-1 that actually leads to an increase. A follow-up patch will have this size calculated automatically. Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23MIPS: tlbex: Fix build_restore_pagemask KScratch restorePaul Burton
build_restore_pagemask() will restore the value of register $1/$at when its restore_scratch argument is non-zero, and aims to do so by filling a branch delay slot. Commit 0b24cae4d535 ("MIPS: Add missing EHB in mtc0 -> mfc0 sequence.") added an EHB instruction (Execution Hazard Barrier) prior to restoring $1 from a KScratch register, in order to resolve a hazard that can result in stale values of the KScratch register being observed. In particular, P-class CPUs from MIPS with out of order execution pipelines such as the P5600 & P6600 are affected. Unfortunately this EHB instruction was inserted in the branch delay slot causing the MFC0 instruction which performs the restoration to no longer execute along with the branch. The result is that the $1 register isn't actually restored, ie. the TLB refill exception handler clobbers it - which is exactly the problem the EHB is meant to avoid for the P-class CPUs. Similarly build_get_pgd_vmalloc() will restore the value of $1/$at when its mode argument equals refill_scratch, and suffers from the same problem. Fix this by in both cases moving the EHB earlier in the emitted code. There's no reason it needs to immediately precede the MFC0 - it simply needs to be between the MTC0 & MFC0. This bug only affects Cavium Octeon systems which use build_fast_tlb_refill_handler(). Signed-off-by: Paul Burton <paulburton@kernel.org> Fixes: 0b24cae4d535 ("MIPS: Add missing EHB in mtc0 -> mfc0 sequence.") Cc: Dmitry Korotin <dkorotin@wavecomp.com> Cc: stable@vger.kernel.org # v3.15+ Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-10-23io_uring: correct timeout req sequence when inserting a new entryzhangyi (F)
The sequence number of the timeout req (req->sequence) indicate the expected completion request. Because of each timeout req consume a sequence number, so the sequence of each timeout req on the timeout list shouldn't be the same. But now, we may get the same number (also incorrect) if we insert a new entry before the last one, such as submit such two timeout reqs on a new ring instance below. req->sequence req_1 (count = 2): 2 req_2 (count = 1): 2 Then, if we submit a nop req, req_2 will still timeout even the nop req finished. This patch fix this problem by adjust the sequence number of each reordered reqs when inserting a new entry. Signed-off-by: zhangyi (F) <yi.zhang@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-23io_uring : correct timeout req sequence when waiting timeoutzhangyi (F)
The sequence number of reqs on the timeout_list before the timeout req should be adjusted in io_timeout_fn(), because the current timeout req will consumes a slot in the cq_ring and cq_tail pointer will be increased, otherwise other timeout reqs may return in advance without waiting for enough wait_nr. Signed-off-by: zhangyi (F) <yi.zhang@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-23io_uring: revert "io_uring: optimize submit_and_wait API"Jens Axboe
There are cases where it isn't always safe to block for submission, even if the caller asked to wait for events as well. Revert the previous optimization of doing that. This reverts two commits: bf7ec93c644cb c576666863b78 Fixes: c576666863b78 ("io_uring: optimize submit_and_wait API") Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-23MIPS: bmips: mark exception vectors as char arraysJonas Gorski
The vectors span more than one byte, so mark them as arrays. Fixes the following build error when building when using GCC 8.3: In file included from ./include/linux/string.h:19, from ./include/linux/bitmap.h:9, from ./include/linux/cpumask.h:12, from ./arch/mips/include/asm/processor.h:15, from ./arch/mips/include/asm/thread_info.h:16, from ./include/linux/thread_info.h:38, from ./include/asm-generic/preempt.h:5, from ./arch/mips/include/generated/asm/preempt.h:1, from ./include/linux/preempt.h:81, from ./include/linux/spinlock.h:51, from ./include/linux/mmzone.h:8, from ./include/linux/bootmem.h:8, from arch/mips/bcm63xx/prom.c:10: arch/mips/bcm63xx/prom.c: In function 'prom_init': ./arch/mips/include/asm/string.h:162:11: error: '__builtin_memcpy' forming offset [2, 32] is out of the bounds [0, 1] of object 'bmips_smp_movevec' with type 'char' [-Werror=array-bounds] __ret = __builtin_memcpy((dst), (src), __len); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/mips/bcm63xx/prom.c:97:3: note: in expansion of macro 'memcpy' memcpy((void *)0xa0000200, &bmips_smp_movevec, 0x20); ^~~~~~ In file included from arch/mips/bcm63xx/prom.c:14: ./arch/mips/include/asm/bmips.h:80:13: note: 'bmips_smp_movevec' declared here extern char bmips_smp_movevec; Fixes: 18a1eef92dcd ("MIPS: BMIPS: Introduce bmips.h") Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: linux-mips@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org>
2019-10-23r8169: never set PCI_EXP_DEVCTL_NOSNOOP_ENHeiner Kallweit
Setting PCI_EXP_DEVCTL_NOSNOOP_EN for certain chip versions had been added to the vendor driver more than 10 years ago, and copied from there to r8169. It has been removed from the vendor driver meanwhile and I think we can safely remove this too. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23Merge branch 'net-phy-support-1000Base-X-auto-negotiation-for-BCM54616S'David S. Miller
Tao Ren says: ==================== net: phy: support 1000Base-X auto-negotiation for BCM54616S This patch series aims at supporting auto negotiation when BCM54616S is running in 1000Base-X mode: without the patch series, BCM54616S PHY driver would report incorrect link speed in 1000Base-X mode. Patch #1 (of 3) modifies assignment to OR when dealing with dev_flags in phy_attach_direct function, so that dev_flags updated in BCM54616S PHY's probe callback won't be lost. Patch #2 (of 3) adds several genphy_c37_* functions to support clause 37 1000Base-X auto-negotiation, and these functions are called in BCM54616S PHY driver. Patch #3 (of 3) detects BCM54616S PHY's operation mode and calls according genphy_c37_* functions to configure auto-negotiation and parse link attributes (speed, duplex, and etc.) in 1000Base-X mode. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23net: phy: broadcom: add 1000Base-X support for BCM54616STao Ren
The BCM54616S PHY cannot work properly in RGMII->1000Base-X mode, mainly because genphy functions are designed for copper links, and 1000Base-X (clause 37) auto negotiation needs to be handled differently. This patch enables 1000Base-X support for BCM54616S by customizing 3 driver callbacks, and it's verified to be working on Facebook CMM BMC platform (RGMII->1000Base-KX): - probe: probe callback detects PHY's operation mode based on INTERF_SEL[1:0] pins and 1000X/100FX selection bit in SerDES 100-FX Control register. - config_aneg: calls genphy_c37_config_aneg when the PHY is running in 1000Base-X mode; otherwise, genphy_config_aneg will be called. - read_status: calls genphy_c37_read_status when the PHY is running in 1000Base-X mode; otherwise, genphy_read_status will be called. Note: BCM54616S PHY can also be configured in RGMII->100Base-FX mode, and 100Base-FX support is not available as of now. Signed-off-by: Tao Ren <taoren@fb.com> Acked-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23net: phy: add support for clause 37 auto-negotiationHeiner Kallweit
This patch adds support for clause 37 1000Base-X auto-negotiation. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Tao Ren <taoren@fb.com> Tested-by: René van Dorst <opensource@vdorst.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23net: phy: modify assignment to OR for dev_flags in phy_attach_directTao Ren
Modify the assignment to OR when dealing with phydev->dev_flags in phy_attach_direct function, and this is to make sure dev_flags set in driver's probe callback won't be lost. Suggested-by: Andrew Lunn <andrew@lunn.ch> CC: Heiner Kallweit <hkallweit1@gmail.com> CC: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Tao Ren <taoren@fb.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23xsk: Fix registration of Rx-only socketsMagnus Karlsson
Having Rx-only AF_XDP sockets can potentially lead to a crash in the system by a NULL pointer dereference in xsk_umem_consume_tx(). This function iterates through a list of all sockets tied to a umem and checks if there are any packets to send on the Tx ring. Rx-only sockets do not have a Tx ring, so this will cause a NULL pointer dereference. This will happen if you have registered one or more Rx-only sockets to a umem and the driver is checking the Tx ring even on Rx, or if the XDP_SHARED_UMEM mode is used and there is a mix of Rx-only and other sockets tied to the same umem. Fixed by only putting sockets with a Tx component on the list that xsk_umem_consume_tx() iterates over. Fixes: ac98d8aab61b ("xsk: wire upp Tx zero-copy functions") Reported-by: Kal Cutter Conley <kal.conley@dectris.com> Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com> Link: https://lore.kernel.org/bpf/1571645818-16244-1-git-send-email-magnus.karlsson@intel.com
2019-10-23net/flow_dissector: switch to siphashEric Dumazet
UDP IPv6 packets auto flowlabels are using a 32bit secret (static u32 hashrnd in net/core/flow_dissector.c) and apply jhash() over fields known by the receivers. Attackers can easily infer the 32bit secret and use this information to identify a device and/or user, since this 32bit secret is only set at boot time. Really, using jhash() to generate cookies sent on the wire is a serious security concern. Trying to change the rol32(hash, 16) in ip6_make_flowlabel() would be a dead end. Trying to periodically change the secret (like in sch_sfq.c) could change paths taken in the network for long lived flows. Let's switch to siphash, as we did in commit df453700e8d8 ("inet: switch IP ID generator to siphash") Using a cryptographically strong pseudo random function will solve this privacy issue and more generally remove other weak points in the stack. Packet schedulers using skb_get_hash_perturb() benefit from this change. Fixes: b56774163f99 ("ipv6: Enable auto flow labels by default") Fixes: 42240901f7c4 ("ipv6: Implement different admin modes for automatic flow labels") Fixes: 67800f9b1f4e ("ipv6: Call skb_get_hash_flowi6 to get skb->hash in ip6_make_flowlabel") Fixes: cb1ce2ef387b ("ipv6: Implement automatic flow label generation on transmit") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Jonathan Berger <jonathann1@walla.com> Reported-by: Amit Klein <aksecurity@gmail.com> Reported-by: Benny Pinkas <benny@pinkas.net> Cc: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-23Merge tag 'arm-soc/for-5.5/maintainers' of ↵Olof Johansson
https://github.com/Broadcom/stblinux into arm/fixes This pull request contains MAINTAINERS file updates for Broadcom SoCs for the 5.5 kernel, please pull the following: - Simon adds a .mailmap alias for his old email - Stefan updates the existing BCM2835 with BCM2711 which is the chip name for the Raspberry Pi 4 - Florian removes Gregory and Brian from the MAINTAINERS file for BRCMSTB SoCs * tag 'arm-soc/for-5.5/maintainers' of https://github.com/Broadcom/stblinux: MAINTAINERS: Remove Gregory and Brian for ARCH_BRCMSTB mailmap: Add Simon Arlott (replacement for expired email address) MAINTAINERS: Add BCM2711 to BCM2835 ARCH Link: https://lore.kernel.org/r/20191023212814.30622-3-f.fainelli@gmail.com Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-23MAINTAINERS: Update the Spreadtrum SoC maintainerBaolin Wang
Change my email address, and add more Spreadtrum SC27xx series PMIC drivers to maintain. Link: https://lore.kernel.org/r/a48483d13243450ecf3b777d49e741b6367f2c6b.1571881956.git.baolin.wang@linaro.org Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-23riscv: cleanup <asm/bug.h>Christoph Hellwig
Remove various not required ifdefs and externs. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-10-23riscv: Fix undefined reference to vmemmap_populate_basepagesKefeng Wang
Using CONFIG_SPARSEMEM_VMEMMAP instead of CONFIG_SPARSEMEM to fix following build issue. riscv64-linux-ld: arch/riscv/mm/init.o: in function 'vmemmap_populate': init.c:(.meminit.text+0x8): undefined reference to 'vmemmap_populate_basepages' Cc: Logan Gunthorpe <logang@deltatee.com> Fixes: d95f1a542c3d ("RISC-V: Implement sparsemem") Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-10-23riscv: Fix implicit declaration of 'page_to_section'Kefeng Wang
With CONFIG_SPARSEMEM and !CONFIG_SPARSEMEM_VMEMMAP, arch/riscv/include/asm/pgtable.h: In function ‘mk_pte’: include/asm-generic/memory_model.h:64:14: error: implicit declaration of function ‘page_to_section’; did you mean ‘present_section’? [-Werror=implicit-function-declaration] int __sec = page_to_section(__pg); \ ^~~~~~~~~~~~~~~ Fixed by changing mk_pte() from inline function to macro. Cc: Logan Gunthorpe <logang@deltatee.com> Fixes: d95f1a542c3d ("RISC-V: Implement sparsemem") Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> [paul.walmsley@sifive.com: fixed checkpatch errors] Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-10-23riscv: fix fs/proc/kcore.c compilation with sparsemem enabledDavid Abdurachmanov
Failed to compile Fedora/RISCV kernel (5.4-rc3+) with sparsemem enabled: fs/proc/kcore.c: In function 'read_kcore': fs/proc/kcore.c:510:8: error: implicit declaration of function 'kern_addr_valid'; did you mean 'virt_addr_valid'? [-Werror=implicit-function-declaration] 510 | if (kern_addr_valid(start)) { | ^~~~~~~~~~~~~~~ | virt_addr_valid Looking at other architectures I don't see kern_addr_valid being guarded by CONFIG_FLATMEM. Fixes: d95f1a542c3d ("RISC-V: Implement sparsemem") Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com> Tested-by: David Abdurachmanov <david.abdurachmanov@sifive.com> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-10-23of: reserved_mem: add missing of_node_put() for proper ref-countingChris Goldsworthy
Commit d698a388146c ("of: reserved-memory: ignore disabled memory-region nodes") added an early return in of_reserved_mem_device_init_by_idx(), but didn't call of_node_put() on a device_node whose ref-count was incremented in the call to of_parse_phandle() preceding the early exit. Fixes: d698a388146c ("of: reserved-memory: ignore disabled memory-region nodes") Signed-off-by: Chris Goldsworthy <cgoldswo@codeaurora.org> Cc: stable@vger.kernel.org Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-23Merge tag 'trace-v5.4-rc3-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Two minor fixes: - A race in perf trace initialization (missing mutexes) - Minor fix to represent gfp_t in synthetic events as properly signed" * tag 'trace-v5.4-rc3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Fix race in perf_trace_buf initialization tracing: Fix "gfp_t" format for synthetic events
2019-10-23of: unittest: fix memory leak in unittest_data_addNavid Emamdoost
In unittest_data_add, a copy buffer is created via kmemdup. This buffer is leaked if of_fdt_unflatten_tree fails. The release for the unittest_data buffer is added. Fixes: b951f9dc7f25 ("Enabling OF selftest to run without machine's devicetree") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Reviewed-by: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-23dt-bindings: riscv: Fix CPU schema errorsRob Herring
Fix the errors in the RiscV CPU DT schema: Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: 'timebase-frequency' is a required property Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@1: 'timebase-frequency' is a required property Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: compatible:0: 'riscv' is not one of ['sifive,rocket0', 'sifive,e5', 'sifive,e51', 'sifive,u54-mc', 'sifive,u54', 'sifive,u5'] Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: compatible: ['riscv'] is too short Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: 'timebase-frequency' is a required property The DT spec allows for 'timebase-frequency' to be in 'cpu' or 'cpus' node and RiscV requires it in /cpus node, so make it disallowed in cpu nodes. Fixes: 4fd669a8c487 ("dt-bindings: riscv: convert cpu binding to json-schema") Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: linux-riscv@lists.infradead.org Acked-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Rob Herring <robh@kernel.org>
2019-10-23Merge tag 'vfio-v5.4-rc5' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull VFIO fixlet from Alex Williamson: "Fix (false) uninitialized variable warning (Joerg Roedel)" * tag 'vfio-v5.4-rc5' of git://github.com/awilliam/linux-vfio: vfio/type1: Initialize resv_msi_base
2019-10-23Merge tag 'regulator-fix-v5.4-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fixes from Mark Brown: "There are a few core fixes here around error handling and handling if suspend mode configuration and some driver specific fixes here but the most important change is the fix to the fixed-regulator DT schema conversion introduced during the last merge window. That fixes one of the last two errors preventing successful execution of "make dt_binding_check" which will be enormously helpful for DT schema development" * tag 'regulator-fix-v5.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: qcom-rpmh: Fix PMIC5 BoB min voltage regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized regulator: lochnagar: Add on_off_delay for VDDCORE regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone regulator: da9062: fix suspend_enable/disable preparation dt-bindings: fixed-regulator: fix compatible enum regulator: fixed: Prevent NULL pointer dereference when !CONFIG_OF regulator: core: make regulator_register() EPROBE_DEFER aware regulator: of: fix suspend-min/max-voltage parsing
2019-10-23MAINTAINERS: Remove Gregory and Brian for ARCH_BRCMSTBFlorian Fainelli
The last time Gregory and Brian did a review was sometime around 2015, since then, they have not been active for ARCH_BRCMSTB changes. Following the position of other maintainers and Harald Welte's position here: [1] http://laforge.gnumonks.org/blog/20180307-mchardy-gpl/ remove both of them. Acked-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2019-10-23drm/v3d: Fix memory leak in v3d_submit_cl_ioctlNavid Emamdoost
In the impelementation of v3d_submit_cl_ioctl() there are two memory leaks. One is when allocation for bin fails, and the other is when bin initialization fails. If kcalloc fails to allocate memory for bin then render->base should be put. Also, if v3d_job_init() fails to initialize bin->base then allocated memory for bin should be released. Fixes: a783a09ee76d ("drm/v3d: Refactor job management.") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191021185250.26130-1-navid.emamdoost@gmail.com
2019-10-23panfrost: Properly undo pm_runtime_enable when deferring a probeTomeu Vizoso
When deferring the probe because of a missing regulator, we were calling pm_runtime_disable even if pm_runtime_enable wasn't called. Move the call to pm_runtime_disable to the right place. Fixes: 635430797d3f ("drm/panfrost: Rework runtime PM initialization") Reported-by: Chen-Yu Tsai <wens@csie.org> Cc: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191023122157.32067-1-tomeu.vizoso@collabora.com
2019-10-23ASoC: kirkwood: fix device remove orderingRussell King
The devm conversion of kirkwood was incorrect; on removal, devm takes effect after the "remove" function has returned. So, the effect of the conversion was to change the order during remove from: - snd_soc_unregister_component() (unpublishes interfaces) - clk_disable_unprepare() - cleanup resources After the conversion, this became: - clk_disable_unprepare() - while the device may still be active - snd_soc_unregister_component() - cleanup resources Hence, it introduces a bug, where the internal clock for the device may be shut down before the device itself has been shut down. It is known that Marvell SoCs, including Dove, locks up if registers for a peripheral that has its clocks disabled are accessed. Fixes: f98fc0f8154e ("ASoC: kirkwood: replace platform to component") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/E1iNGyP-0004oN-BA@rmk-PC.armlinux.org.uk Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-23ASoC: rsnd: dma: fix SSI9 4/5/6/7 busif dma addressJiada Wang
Currently each SSI unit's busif dma address is calculated by following calculation formula: 0xec540000 + 0x1000 * id + busif / 4 * 0xA000 + busif % 4 * 0x400 But according to R-Car3 HW manual 41.1.4 Register Configuration, ssi9 4/5/6/7 busif data register address (SSI9_4_BUSIF/SSI9_5_BUSIF/SSI9_6_BUSIF/SSI9_7_BUSIF) are out of this rule. This patch updates the calculation formula to correct ssi9 4/5/6/7 busif data register address. Fixes: 5e45a6fab3b9 ("ASoc: rsnd: dma: Calculate dma address with consider of BUSIF") Signed-off-by: Jiada Wang <jiada_wang@mentor.com> Signed-off-by: Timo Wischer <twischer@de.adit-jv.com> [erosca: minor improvements in commit description] Cc: Andrew Gabbasov <andrew_gabbasov@mentor.com> Cc: stable@vger.kernel.org # v4.20+ Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/20191022185429.12769-1-erosca@de.adit-jv.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-23ASoC: hdmi-codec: drop mutex locking againJerome Brunet
This reverts commit eb1ecadb7f67dde94ef0efd3ddaed5cb6c9a65ed. This fixes the following warning reported by lockdep and a potential issue with hibernation ==================================== WARNING: pulseaudio/1297 still has locks held! 5.3.0+ #1826 Not tainted ------------------------------------ 1 lock held by pulseaudio/1297: #0: ee815308 (&hcp->lock){....}, at: hdmi_codec_startup+0x20/0x130 stack backtrace: CPU: 0 PID: 1297 Comm: pulseaudio Not tainted 5.3.0+ #1826 Hardware name: Marvell Dove (Cubox) [<c0017b4c>] (unwind_backtrace) from [<c0014d10>] (show_stack+0x10/0x14) [<c0014d10>] (show_stack) from [<c00a2d18>] (futex_wait_queue_me+0x13c/0x19c) [<c00a2d18>] (futex_wait_queue_me) from [<c00a3630>] (futex_wait+0x184/0x24c) [<c00a3630>] (futex_wait) from [<c00a5e1c>] (do_futex+0x334/0x598) [<c00a5e1c>] (do_futex) from [<c00a62e8>] (sys_futex_time32+0x118/0x180) [<c00a62e8>] (sys_futex_time32) from [<c0009000>] (ret_fast_syscall+0x0/0x54) Exception stack(0xebd31fa8 to 0xebd31ff0) 1fa0: 00000000 ffffffff 000c8748 00000189 00000001 00000000 1fc0: 00000000 ffffffff 00000000 000000f0 00000000 00000000 00000000 00056200 1fe0: 000000f0 beac03a8 b6d6c835 b6d6f456 Fixes: eb1ecadb7f67 ("ASoC: hdmi-codec: re-introduce mutex locking") Reported-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20191023161203.28955-2-jbrunet@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-23libbpf: Fix strncat bounds error in libbpf_prog_type_by_nameKP Singh
On compiling samples with this change, one gets an error: error: ‘strncat’ specified bound 118 equals destination size [-Werror=stringop-truncation] strncat(dst, name + section_names[i].len, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sizeof(raw_tp_btf_name) - (dst - raw_tp_btf_name)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ strncat requires the destination to have enough space for the terminating null byte. Fixes: f75a697e09137 ("libbpf: Auto-detect btf_id of BTF-based raw_tracepoint") Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191023154038.24075-1-kpsingh@chromium.org
2019-10-23xsk: Improve documentation for AF_XDPMagnus Karlsson
Added sections on all the bind flags, libbpf, all the setsockopts and all the getsockopts. Also updated the document to reflect the latest features and to correct some spelling errors. v1 -> v2: * Updated XDP program with latest BTF map format * Added one more FAQ entry * Some minor edits and corrections v2 -> v3: * Simplified XDP_SHARED_UMEM example XDP program Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/1571648224-16889-1-git-send-email-magnus.karlsson@intel.com
2019-10-23selftests/bpf: Fix LDLIBS orderAndrii Nakryiko
Order of $(LDLIBS) matters to linker, so put it after all the .o and .a files. Fixes: 74b5a5968fe8 ("selftests/bpf: Replace test_progs and test_maps w/ general rule") Reported-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20191023153128.3486140-1-andriin@fb.com
2019-10-23Merge tag 'omap-for-v5.4/fixes-rc4-signed' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes Three fixes for omaps for v5.4-rc cycle Two regression fixes for omap3 iommu. I missed applying two omap3 related iommu pdata quirks patches earlier because the kbuild test robot produced errors on them for missing dependencies. Fix ti-sysc interconnect target module driver handling for watchdog quirk. I must have tested this earlier only with watchdog service running, but clearly it does not do what it needs to do. * tag 'omap-for-v5.4/fixes-rc4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Fix watchdog quirk handling ARM: OMAP2+: Add pdata for OMAP3 ISP IOMMU ARM: OMAP2+: Plug in device_enable/idle ops for IOMMUs Link: https://lore.kernel.org/r/pull-1571848757-282222@atomide.com Signed-off-by: Olof Johansson <olof@lixom.net>