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2022-09-26Merge branch 'bpf: Fixes for CONFIG_X86_KERNEL_IBT'Alexei Starovoitov
Jiri Olsa says: ==================== Martynas reported bpf_get_func_ip returning +4 address when CONFIG_X86_KERNEL_IBT option is enabled and I found there are some failing bpf tests when this option is enabled. The CONFIG_X86_KERNEL_IBT option adds endbr instruction at the function entry, so the idea is to 'fix' entry ip for kprobe_multi and trampoline probes, because they are placed on the function entry. v5 changes: - updated uapi/linux/bpf.h headers with comment for bpf_get_func_ip returning 0 [Andrii] - added acks v4 changes: - used get_kernel_nofault to read previous instruction [Peter] - used movabs instruction in trampoline comment [Peter] - renamed fentry_ip argument in kprobe_multi_link_handler [Peter] v3 changes: - using 'unused' bpf function to get IBT config option into selftest skeleton - rebased to current bpf-next/master - added ack/review from Masami v2 changes: - change kprobes get_func_ip to return zero for kprobes attached within the function body [Andrii] - detect IBT config and properly test kprobe with offset [Andrii] v1 changes: - read previous instruction in kprobe_multi link handler and adjust entry_ip for CONFIG_X86_KERNEL_IBT option - split first patch into 2 separate changes - update changelogs ==================== Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-26selftests/bpf: Fix get_func_ip offset test for CONFIG_X86_KERNEL_IBTJiri Olsa
With CONFIG_X86_KERNEL_IBT enabled the test for kprobe with offset won't work because of the extra endbr instruction. As suggested by Andrii adding CONFIG_X86_KERNEL_IBT detection and using appropriate offset value based on that. Also removing test7 program, because it does the same as test6. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20220926153340.1621984-7-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-26bpf: Return value in kprobe get_func_ip only for entry addressJiri Olsa
Changing return value of kprobe's version of bpf_get_func_ip to return zero if the attach address is not on the function's entry point. For kprobes attached in the middle of the function we can't easily get to the function address especially now with the CONFIG_X86_KERNEL_IBT support. If user cares about current IP for kprobes attached within the function body, they can get it with PT_REGS_IP(ctx). Suggested-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Martynas Pumputis <m@lambda.lt> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20220926153340.1621984-6-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-26bpf: Adjust kprobe_multi entry_ip for CONFIG_X86_KERNEL_IBTJiri Olsa
Martynas reported bpf_get_func_ip returning +4 address when CONFIG_X86_KERNEL_IBT option is enabled. When CONFIG_X86_KERNEL_IBT is enabled we'll have endbr instruction at the function entry, which screws return value of bpf_get_func_ip() helper that should return the function address. There's short term workaround for kprobe_multi bpf program made by Alexei [1], but we need this fixup also for bpf_get_attach_cookie, that returns cookie based on the entry_ip value. Moving the fixup in the fprobe handler, so both bpf_get_func_ip and bpf_get_attach_cookie get expected function address when CONFIG_X86_KERNEL_IBT option is enabled. Also renaming kprobe_multi_link_handler entry_ip argument to fentry_ip so it's clearer this is an ftrace __fentry__ ip. [1] commit 7f0059b58f02 ("selftests/bpf: Fix kprobe_multi test.") Cc: Peter Zijlstra <peterz@infradead.org> Reported-by: Martynas Pumputis <m@lambda.lt> Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20220926153340.1621984-5-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-26bpf: Use given function address for trampoline ip argJiri Olsa
Using function address given at the generation time as the trampoline ip argument. This way we get directly the function address that we need, so we don't need to: - read the ip from the stack - subtract X86_PATCH_SIZE - subtract ENDBR_INSN_SIZE if CONFIG_X86_KERNEL_IBT is enabled which is not even implemented yet ;-) Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20220926153340.1621984-4-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-26ftrace: Keep the resolved addr in kallsyms_callbackJiri Olsa
Keeping the resolved 'addr' in kallsyms_callback, instead of taking ftrace_location value, because we depend on symbol address in the cookie related code. With CONFIG_X86_KERNEL_IBT option the ftrace_location value differs from symbol address, which screwes the symbol address cookies matching. There are 2 users of this function: - bpf_kprobe_multi_link_attach for which this fix is for - get_ftrace_locations which is used by register_fprobe_syms this function needs to get symbols resolved to addresses, but does not need 'ftrace location addresses' at this point there's another ftrace location translation in the path done by ftrace_set_filter_ips call: register_fprobe_syms addrs = get_ftrace_locations register_fprobe_ips(addrs) ... ftrace_set_filter_ips ... __ftrace_match_addr ip = ftrace_location(ip); ... Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20220926153340.1621984-3-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-26kprobes: Add new KPROBE_FLAG_ON_FUNC_ENTRY kprobe flagJiri Olsa
Adding KPROBE_FLAG_ON_FUNC_ENTRY kprobe flag to indicate that attach address is on function entry. This is used in following changes in get_func_ip helper to return correct function address. Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20220926153340.1621984-2-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-26clk: qcom: Merge alt alpha plls for qcm2260, sm6115Iskren Chernev
The qcom2260 and sm6115 GCC drivers use a common modified DEFAULT and BRAMMO alpha pll offsets. Move these common offsets to the shared place to avoid duplication. The new layouts have a suffix EVO similar to LUCID and RIVIAN. Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220830075620.974009-4-iskren.chernev@gmail.com
2022-09-26clk: qcom: gcc-sm6115: Move alpha pll bramo overridesIskren Chernev
sm6115 uses a modified default and bramo alpha pll offsets. Put them in the same place for consistency. Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220830075620.974009-3-iskren.chernev@gmail.com
2022-09-26clk: qcom: gcc-sm6115: Override default Alpha PLL regsAdam Skladowski
The DEFAULT and BRAMMO PLL offsets are non-standard in downstream, but currently only BRAMMO ones are overridden. Override DEFAULT ones too. A very similar thing is happening in gcc-qcm2290 driver. Fixes: cbe63bfdc54f ("clk: qcom: Add Global Clock controller (GCC) driver for SM6115") Signed-off-by: Adam Skladowski <a_skl39@protonmail.com> Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220830075620.974009-2-iskren.chernev@gmail.com
2022-09-26clk: qcom: Add support for Display Clock Controller on SM8450Dmitry Baryshkov
Add support for the dispcc on Qualcomm SM8450 platform. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220908222850.3552050-4-dmitry.baryshkov@linaro.org
2022-09-26clk: qcom: alpha-pll: add support for power off mode for lucid evo PLLDmitry Baryshkov
PLLs can be kept in standby (default configuration) or in off mode when disabled during power collapse. Hence add support for pll disable off mode for lucid evo PLL. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220908222850.3552050-3-dmitry.baryshkov@linaro.org
2022-09-26dt-bindings: clock: qcom: add bindings for dispcc on SM8450Dmitry Baryshkov
Add device tree bindings for the display clock controller on Qualcomm SM8450 platform. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220908222850.3552050-2-dmitry.baryshkov@linaro.org
2022-09-26clk: qcom: Add display clock controller driver for SM6115Adam Skladowski
Add support for the display clock controller found in SM6115/SM4250 based devices. This clock controller feeds the Multimedia Display SubSystem (MDSS). This driver is based upon one submitted for QCM2290. Signed-off-by: Adam Skladowski <a39.skl@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220911164635.182973-3-a39.skl@gmail.com
2022-09-26dt-bindings: clock: add QCOM SM6115 display clock bindingsAdam Skladowski
Add device tree bindings for display clock controller for Qualcomm Technology Inc's SM6115 SoC. Signed-off-by: Adam Skladowski <a39.skl@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> [bjorn: Minor fix of binding description] Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220911164635.182973-2-a39.skl@gmail.com
2022-09-26clk: qcom: gcc-sc7280: Update the .pwrsts for PCIe GDSCKrishna chaitanya chundru
Enabling PCIe GDSC retention to ensure controller and its dependent clocks won't go down during system suspend. Update the .pwrsts for PCIe GDSC so it only transitions to RET in low power. Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/1663669347-29308-6-git-send-email-quic_krichai@quicinc.com
2022-09-26clk: qcom: lpass: Fix lpass audiocc probeSatya Priya
Change the qcom_cc_probe_by_index() call to qcom_cc_really_probe() to avoid remapping of memory region for index 0, which is already being done through qcom_cc_map(). Fixes: 7c6a6641c2 ("clk: qcom: lpass: Add support for resets & external mclk for SC7280") Signed-off-by: Satya Priya <quic_c_skakit@quicinc.com> Reviewed-by: Neil Armstrong <neil.armstrong@baylibre.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/1663673683-7018-1-git-send-email-quic_c_skakit@quicinc.com
2022-09-26clk: qcom: apss-ipq-pll: add support for IPQ8074Robert Marko
Add support for IPQ8074 since it uses the same PLL setup, however it uses slightly different Alpha PLL config. Alpha PLL config was obtained by dumping PLL registers from a running device. Signed-off-by: Robert Marko <robimarko@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-7-robimarko@gmail.com
2022-09-26clk: qcom: apss-ipq-pll: update IPQ6018 Alpha PLL configRobert Marko
Update the IPQ6018 Alpha PLL config to the latest one from the downstream 5.4 kernel[1]. This one should match the production SoC-s. Tested on IPQ6018 CP01-C1 reference board. [1] https://git.codelinaro.org/clo/qsdk/oss/kernel/linux-ipq-5.4/-/blob/NHSS.QSDK.12.1.r4/drivers/clk/qcom/apss-ipq-pll.c#L41 Signed-off-by: Robert Marko <robimarko@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-6-robimarko@gmail.com
2022-09-26clk: qcom: apss-ipq-pll: use OF match data for Alpha PLL configRobert Marko
Convert the driver to use OF match data for providing the Alpha PLL config per compatible. This is required for IPQ8074 support since it uses a different Alpha PLL config. While we are here rename "ipq_pll_config" to "ipq6018_pll_config" to make it clear that it is for IPQ6018 only. Signed-off-by: Robert Marko <robimarko@gmail.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-5-robimarko@gmail.com
2022-09-26dt-bindings: clock: qcom,a53pll: add IPQ8074 compatibleRobert Marko
Add IPQ8074 compatible to A53 PLL bindings. Signed-off-by: Robert Marko <robimarko@gmail.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-4-robimarko@gmail.com
2022-09-26clk: qcom: apss-ipq6018: mark apcs_alias0_core_clk as criticalRobert Marko
While fixing up the driver I noticed that my IPQ8074 board was hanging after CPUFreq switched the frequency during boot, WDT would eventually reset it. So mark apcs_alias0_core_clk as critical since its the clock feeding the CPU cluster and must never be disabled. Fixes: 5e77b4ef1b19 ("clk: qcom: Add ipq6018 apss clock controller") Signed-off-by: Robert Marko <robimarko@gmail.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-3-robimarko@gmail.com
2022-09-26clk: qcom: apss-ipq6018: fix apcs_alias0_clk_srcRobert Marko
While working on IPQ8074 APSS driver it was discovered that IPQ6018 and IPQ8074 use almost the same PLL and APSS clocks, however APSS driver is currently broken. More precisely apcs_alias0_clk_src is broken, it was added as regmap_mux clock. However after debugging why it was always stuck at 800Mhz, it was figured out that its not regmap_mux compatible at all. It is a simple mux but it uses RCG2 register layout and control bits, so utilize the new clk_rcg2_mux_closest_ops to correctly drive it while not having to provide a dummy frequency table. While we are here, use ARRAY_SIZE for number of parents. Tested on IPQ6018-CP01-C1 reference board and multiple IPQ8074 boards. Fixes: 5e77b4ef1b19 ("clk: qcom: Add ipq6018 apss clock controller") Signed-off-by: Robert Marko <robimarko@gmail.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-2-robimarko@gmail.com
2022-09-26clk: qcom: clk-rcg2: add rcg2 mux opsChristian Marangi
An RCG may act as a mux that switch between 2 parents. This is the case on IPQ6018 and IPQ8074 where the APCS core clk that feeds the CPU cluster clock just switches between XO and the PLL that feeds it. Add the required ops to add support for this special configuration and use the generic mux function to determine the rate. This way we dont have to keep a essentially dummy frequency table to use RCG2 as a mux. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Robert Marko <robimarko@gmail.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220818220628.339366-1-robimarko@gmail.com
2022-09-26blk-cgroup: pass a gendisk to the blkg allocation helpersChristoph Hellwig
Prepare for storing the blkcg information in the gendisk instead of the request_queue. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-18-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: pass a gendisk to blkcg_schedule_throttleChristoph Hellwig
Pass the gendisk to blkcg_schedule_throttle as part of moving the blk-cgroup infrastructure to be gendisk based. Remove the unused !BLK_CGROUP stub while we're at it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-17-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: pass a gendisk to blkg_destroy_allChristoph Hellwig
Pass the gendisk to blkg_destroy_all as part of moving the blk-cgroup infrastructure to be gendisk based. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-16-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-throttle: pass a gendisk to blk_throtl_cancel_biosChristoph Hellwig
Pass the gendisk to blk_throtl_cancel_bios as part of moving the blk-cgroup infrastructure to be gendisk based. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-15-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-throttle: pass a gendisk to blk_throtl_register_queueChristoph Hellwig
Pass the gendisk to blk_throtl_register_queue as part of moving the blk-cgroup infrastructure to be gendisk based. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-14-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-throttle: pass a gendisk to blk_throtl_init and blk_throtl_exitChristoph Hellwig
Pass the gendisk to blk_throtl_init and blk_throtl_exit as part of moving the blk-cgroup infrastructure to be gendisk based. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-13-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-iocost: cleanup ioc_qos_writeChristoph Hellwig
Use a local disk variable instead of retrieving the disk and request_queue over and over by various means. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-12-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-iocost: pass a gendisk to blk_iocost_initChristoph Hellwig
Pass the gendisk to blk_iocost_init as part of moving the blk-cgroup infrastructure to be gendisk based. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-11-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-iocost: simplify ioc_nameChristoph Hellwig
Just directly dereference the disk name instead of going through multiple hoops to find the same value. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-10-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-iolatency: pass a gendisk to blk_iolatency_initChristoph Hellwig
Pass the gendisk to blk_iolatency_init as part of moving the blk-cgroup infrastructure to be gendisk based. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-9-hch@lst.de [axboe: missed inline for blk_iolatency_init() and !CONFIG_BLK_CGROUP_IOLATENCY] Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-ioprio: pass a gendisk to blk_ioprio_init and blk_ioprio_exitChristoph Hellwig
Pass the gendisk to blk_ioprio_init and blk_ioprio_exit as part of moving the blk-cgroup infrastructure to be gendisk based. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-8-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: pass a gendisk to blkcg_init_queue and blkcg_exit_queueChristoph Hellwig
Pass the gendisk to blkcg_init_disk and blkcg_exit_disk as part of moving the blk-cgroup infrastructure to be gendisk based. Also remove the rather pointless kerneldoc comments for these internal functions with a single caller each. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-7-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: remove blkg_lookup_checkChristoph Hellwig
The combinations of an error check with an ERR_PTR return and a lookup with a NULL return leads to ugly handling of the return values in the callers. Just open coding the check and the lookup is much simpler. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-6-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: cleanup the blkg_lookup family of functionsChristoph Hellwig
Add a fully inlined blkg_lookup as the extra two checks aren't going to generated a lot more code vs the call to the slowpath routine, and open code the hint update in the two callers that care. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-5-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: remove open coded blkg_lookup instancesChristoph Hellwig
Use blkg_lookup instead of open coding it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: remove blk_queue_root_blkgChristoph Hellwig
Just open code it in the only caller and drop the unused !BLK_CGROUP stub. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26blk-cgroup: fix error unwinding in blkcg_init_queueChristoph Hellwig
When blk_throtl_init fails, we need to call blk_ioprio_exit. Switch to proper goto based unwinding to fix this. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Andreas Herrmann <aherrmann@suse.de> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20220921180501.1539876-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-26Merge branch 'net-sunhme-cleanups-and-logging-improvements'Jakub Kicinski
Sean Anderson says: ==================== net: sunhme: Cleanups and logging improvements This series is a continuation of [1] with a focus on logging improvements (in the style of commit b11e5f6a3a5c ("net: sunhme: output link status with a single print.")). I have included several of Rolf's patches in the series where appropriate (with slight modifications). After this series is applied, many more messages from this driver will come with driver/device information. Additionally, most messages (especially debug messages) have been condensed onto one line (as KERN_CONT messages get split). [1] https://lore.kernel.org/netdev/4686583.GXAFRqVoOG@eto.sf-tec.de/ ==================== Link: https://lore.kernel.org/r/20220924015339.1816744-1-seanga2@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: Add myself as a maintainerSean Anderson
I have the hardware so at the very least I can test things. Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: Use vdbg for spam-y printsSean Anderson
The SXD, TXD, and RXD macros are used only once (or twice). Just use the vdbg print, which seems to have been devised for these sorts of very verbose messages. Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: Combine continued messagesSean Anderson
This driver seems to have been written under the assumption that messages can be continued arbitrarily. I'm not when this changed (if ever), but such ad-hoc continuations are liable to be rudely interrupted. Convert all such instances to single prints. This loses a bit of timing information (such as when a line was constructed piecemeal as the function executed), but it's easy to add a few prints if necessary. This also adds newlines to the ends of any prints without them. Since (almost every) debug print included the name of the function, include it automatically. Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: Use (net)dev_foo wherever possibleSean Anderson
Wherever possible, use the associated netdev (or device) when printing errors or other messages. This makes it immediately clear what device caused the error, and provides more information than just the device name. Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: Convert printk(KERN_FOO ...) to pr_foo(...)Sean Anderson
This is a mostly-mechanical translation of the existing printks into pr_foos. In several places, I have pasted messages which were broken over several lines to allow for easier grepping. Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: Clean up debug infrastructureSean Anderson
Remove all the single-use debug conditionals, and just collect the debug defines at the top of the file. HMD seems like it is used for general debug info, so just redefine it as pr_debug. Additionally, instead of using the default loglevel, use the debug loglevel for debugging. Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: Convert FOO((...)) to FOO(...)Sean Anderson
With the power of variadic macros, double parentheses are unnecessary. Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-26sunhme: switch to devresRolf Eike Beer
This not only removes a lot of code, it also fixes the memleak of the DMA memory when register_netdev() fails. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> [ rebased onto net-next/master; fixed error reporting ] Signed-off-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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