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2021-09-14scsi: sd: Make sd_spinup_disk() less noisyHeiner Kallweit1-1/+4
sd_spinup_disk() is a little bit noisy after commit 848ade90ba9c ("scsi: sd: Do not exit sd_spinup_disk() quietly"): scsi 0:0:0:0: Direct-Access Multiple Card Reader 1.00 PQ: 0 ANSI: 0 sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 0:0:0:0: [sda] Media removed, stopped polling sd 0:0:0:0: [sda] Media removed, stopped polling sd 0:0:0:0: [sda] Attached SCSI removable disk sd 0:0:0:0: [sda] Media removed, stopped polling There's not really a benefit in printing the same message multiple times. Therefore print it only if media_present was previously set. Link: https://lore.kernel.org/r/a2d0a249-6035-9697-626a-e14ec50ef6ee@gmail.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: ufs: ufs-pci: Fix Intel LKF link stabilityAdrian Hunter3-1/+81
Intel LKF can experience link errors. Make fixes to increase link stability, especially when switching to high speed modes. Link: https://lore.kernel.org/r/20210831145317.26306-1-adrian.hunter@intel.com Fixes: b2c57925df1f ("scsi: ufs: ufs-pci: Add support for Intel LKF") Cc: stable@vger.kernel.org Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: mpt3sas: Clean up some inconsistent indentingColin Ian King2-3/+2
There are a couple of statements where the indentation is not correct, clean these up. Remove a redundant break statement. Link: https://lore.kernel.org/r/20210902224215.57286-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: megaraid: Clean up some inconsistent indentingColin Ian King1-2/+2
There are a few statements where the indentation is not correct, clean these up. Link: https://lore.kernel.org/r/20210902223643.56979-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: sr: Fix spelling mistake "does'nt" -> "doesn't"Colin Ian King1-1/+1
There is a spelling mistake in a literal string. Fix it. Link: https://lore.kernel.org/r/20210826115714.11844-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: Remove SCSI CDROM MAINTAINERS entryJens Axboe1-7/+0
There's little point in keeping this one separately maintained these days, so just remove the entry and it'll fall under the SCSI subsystem where it belongs. Link: https://lore.kernel.org/r/c5e12bd1-10de-634c-d6b3-dac79ed01af5@kernel.dk Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: megaraid: Fix Coccinelle warningjing yangyang1-2/+1
WARNING !A || A && B is equivalent to !A || B This issue was detected with the help of Coccinelle. Link: https://lore.kernel.org/r/20210820030805.12383-1-jing.yangyang@zte.com.cn Reported-by: Zeal Robot <zealci@zte.com.cn> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: jing yangyang <jing.yangyang@zte.com.cn> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: ncr53c8xx: Remove unused retrieve_from_waiting_list() functionHelge Deller1-23/+0
Drop retrieve_from_waiting_list() to avoid this warning: drivers/scsi/ncr53c8xx.c:8000:26: warning: ‘retrieve_from_waiting_list’ defined but not used [-Wunused-function] Link: https://lore.kernel.org/r/YTfS/LH5vCN6afDW@ls3530 Fixes: 1c22e327545c ("scsi: ncr53c8xx: Remove unused code") Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: elx: efct: Do not hold lock while calling fc_vport_terminate()James Smart1-2/+2
Smatch checker reported the following error: drivers/base/power/sysfs.c:833 dpm_sysfs_remove() warn: sleeping in atomic context With a calling sequence of: efct_lio_npiv_drop_nport() <- disables preempt -> fc_vport_terminate() -> device_del() -> dpm_sysfs_remove() Issue is efct_lio_npiv_drop_nport() is making the fc_vport_terminate() call while holding a lock w/ ipl raised. It is unnecessary to hold the lock over this call, shift where the lock is taken. Link: https://lore.kernel.org/r/20210907165225.10821-1-jsmart2021@gmail.com Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: target: Fix the pgr/alua_support_store functionsMaurizio Lombardi1-12/+20
Commit 356ba2a8bc8d ("scsi: target: tcmu: Make pgr_support and alua_support attributes writable") introduced support for changeable alua_support and pgr_support target attributes. These can only be changed if the backstore is user-backed, otherwise the kernel returns -EINVAL. This triggers a warning in the targetcli/rtslib code when performing a target restore that includes non-userbacked backstores: # targetctl restore Storage Object block/storage1: Cannot set attribute alua_support: [Errno 22] Invalid argument, skipped Storage Object block/storage1: Cannot set attribute pgr_support: [Errno 22] Invalid argument, skipped Fix this warning by returning an error code only if we are really going to flip the PGR/ALUA bit in the transport_flags field, otherwise we will do nothing and return success. Return ENOSYS instead of EINVAL if the pgr/alua attributes can not be changed, this way it will be possible for userspace to understand if the operation failed because an invalid value has been passed to strtobool() or because the attributes are fixed. Fixes: 356ba2a8bc8d ("scsi: target: tcmu: Make pgr_support and alua_support attributes writable") Link: https://lore.kernel.org/r/20210906151809.52811-1-mlombard@redhat.com Reviewed-by: Bodo Stroesser <bostroesser@gmail.com> Signed-off-by: Maurizio Lombardi <mlombard@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: sd_zbc: Ensure buffer size is aligned to SECTOR_SIZENaohiro Aota1-3/+3
Reporting zones on a SCSI device sometimes fail with the following error: [76248.516390] ata16.00: invalid transfer count 131328 [76248.523618] sd 15:0:0:0: [sda] REPORT ZONES start lba 536870912 failed The error (from drivers/ata/libata-scsi.c:ata_scsi_zbc_in_xlat()) indicates that buffer size is not aligned to SECTOR_SIZE. This happens when the __vmalloc() failed. Consider we are reporting 4096 zones, then we will have "bufsize = roundup((4096 + 1) * 64, SECTOR_SIZE)" = (513 * 512) = 262656. Then, __vmalloc() failure halves the bufsize to 131328, which is no longer aligned to SECTOR_SIZE. Use rounddown() to ensure the size is always aligned to SECTOR_SIZE and fix the comment as well. Link: https://lore.kernel.org/r/20210906140642.2267569-1-naohiro.aota@wdc.com Fixes: 23a50861adda ("scsi: sd_zbc: Cleanup sd_zbc_alloc_report_buffer()") Cc: stable@vger.kernel.org # 5.5+ Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: sd: Free scsi_disk device via put_device()Ming Lei1-4/+5
After a device is initialized via device_initialize() it should be freed via put_device(). sd_probe() currently gets this wrong, fix it up. Link: https://lore.kernel.org/r/20210906090112.531442-1-ming.lei@redhat.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: mpt3sas: Call cpu_relax() before calling udelay()Sreekanth Reddy1-1/+3
Call cpu_relax() while waiting for the current blk-mq polling instance to complete. Link: https://lore.kernel.org/r/20210901152542.27866-1-sreekanth.reddy@broadcom.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: iscsi: Adjust iface sysfs attr detectionBaokun Li1-4/+4
ISCSI_NET_PARAM_IFACE_ENABLE belongs to enum iscsi_net_param instead of iscsi_iface_param so move it to ISCSI_NET_PARAM. Otherwise, when we call into the driver, we might not match and return that we don't want attr visible in sysfs. Found in code review. Link: https://lore.kernel.org/r/20210901085336.2264295-1-libaokun1@huawei.com Fixes: e746f3451ec7 ("scsi: iscsi: Fix iface sysfs attr detection") Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Baokun Li <libaokun1@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: ufs: ufshpb: Remove unused parametersChanWoo Lee1-5/+3
The following parameters are not used in the function. Remove them. *func(): ufshpb_set_hpb_read_to_upiu -> struct ufshpb_lu *hpb -> u32 lpn Link: https://lore.kernel.org/r/20210901025617.31174-1-cw9316.lee@samsung.com Reviewed-by: Daejun Park <daejun7.park@samsung.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: lpfc: Remove unneeded variableChi Minghao1-2/+1
Fix the following coccicheck REVIEW: ./drivers/scsi/lpfc/lpfc_scsi.c:1498:9-12 REVIEW Unneeded variable Link: https://lore.kernel.org/r/20210831114058.17817-1-lv.ruyi@zte.com.cn Reported-by: Zeal Robot <zealci@zte.com.cm> Reviewed-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Chi Minghao <chi.minghao@zte.com.cn> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: lpfc: Fix compilation errors on kernels with no CONFIG_DEBUG_FSJames Smart3-9/+3
The Kernel test robot flagged the following warning: ".../lpfc_init.c:7788:35: error: 'struct lpfc_sli4_hba' has no member named 'c_stat'" Reviewing this issue highlighted that one of the recent patches caused the driver to no longer compile cleanly if CONFIG_DEBUG_FS is not set. Correct the different areas that are failing to compile. Link: https://lore.kernel.org/r/20210908050927.37275-1-jsmart2021@gmail.com Fixes: 02243836ad6f ("scsi: lpfc: Add support for the CM framework") Reviewed-by: Nathan Chancellor <nathan@kernel.org> Build-tested-by: Nathan Chancellor <nathan@kernel.org> Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: lpfc: Fix CPU to/from endian warnings introduced by ELS processingJames Smart4-15/+16
The kernel test robot reported the following sparse warning: ".../lpfc_els.c:3984:25: sparse: sparse: cast from restricted __be16" For the error being flagged, using be32_to_cpu() on a be16 data type, it was simple enough. But a review of other elements and warnings were also evaluated. This patch corrected several items in the original patch: - Using be32_to_cpu() on a be16 data type - cpu_to_le32() used on a std uint32_t (CPU) data type. Note: This is a byte array, but stored in LE layout by hardware at 32-bit boundaries. So it possibly needed conversion. - Using cpu_to_le32() on a std uint16_t and assigned to a char typeA - Using le32_to_cpu() on a le16 type - Missing cpu_to_le16() on an assignment Link: https://lore.kernel.org/r/20210830231243.6227-1-jsmart2021@gmail.com Fixes: 9064aeb2df8e ("scsi: lpfc: Add EDC ELS support") Reported-by: kernel test robot <lkp@intel.com> Co-developed-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: Justin Tee <justin.tee@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: elx: efct: Fix void-pointer-to-enum-cast warning for efc_nport_topologyJames Smart2-6/+4
The kernel test robot flagged an warning for ".../efc_device.c:932:6: warning: cast to smaller integer type 'enum efc_nport_topology' from 'void *'" For the topology events, the "arg" field is generically defined as a void * and is used to pass different arguments. Most of the arguments are pointers to data structures. But for the EFC_EVT_NPORT_TOPOLOGY_NOTIFY event, the argument is an enum value, and the code is typecasting the void * to an enum generating the warning. Fix by converting the EFC_EVT_NPORT_TOPOLOGY_NOTIFY event to pass a pointer to the enum, thus it's a straight-forward pointer dereference in the event handler. Link: https://lore.kernel.org/r/20210830231050.5951-1-jsmart2021@gmail.com Fixes: 202bfdffae27 ("scsi: elx: libefc: FC node ELS and state handling") Reported-by: kernel test robot <lkp@intel.com> Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-13scsi: st: Add missing break in switch statement in st_ioctl()Nathan Chancellor1-0/+1
Clang + -Wimplicit-fallthrough warns: drivers/scsi/st.c:3831:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] default: ^ drivers/scsi/st.c:3831:2: note: insert 'break;' to avoid fall-through default: ^ break; 1 warning generated. Clang's -Wimplicit-fallthrough is a little bit more pedantic than GCC's, requiring every case block to end in break, return, or fallthrough, rather than allowing implicit fallthroughs to cases that just contain break or return. Add a break so that there is no more warning, as has been done all over the tree already. Link: https://lore.kernel.org/r/20210817235531.172995-1-nathan@kernel.org Fixes: 2e27f576abc6 ("scsi: scsi_ioctl: Call scsi_cmd_ioctl() from scsi_ioctl()") Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-09-12Linux 5.15-rc1Linus Torvalds1-2/+2
2021-09-11tools headers UAPI: Update tools's copy of drm.h headersArnaldo Carvalho de Melo1-2/+12
Picking the changes from: 17ce9c61c71cbc0d ("drm: document DRM_IOCTL_MODE_RMFB") Doesn't result in any tooling changes: $ tools/perf/trace/beauty/drm_ioctl.sh > before $ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h $ tools/perf/trace/beauty/drm_ioctl.sh > after $ diff -u before after Silencing these perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h' diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h Cc: Simon Ser <contact@emersion.fr> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11tools headers UAPI: Sync drm/i915_drm.h with the kernel sourcesArnaldo Carvalho de Melo1-81/+417
To pick the changes in: b65a9489730a2494 ("drm/i915/userptr: Probe existence of backing struct pages upon creation") ee242ca704d38699 ("drm/i915/guc: Implement GuC priority management") 81340cf3bddded4f ("drm/i915/uapi: reject set_domain for discrete") 7961c5b60f23dff5 ("drm/i915: Add TTM offset argument to mmap.") aef7b67a79564f6c ("drm/i915/uapi: convert drm_i915_gem_userptr to kernel doc") e7737b67ab46ee0e ("drm/i915/uapi: reject caching ioctls for discrete") 3aa8c57fe25a9247 ("drm/i915/uapi: convert drm_i915_gem_set_domain to kernel doc") 289f5a72009b8f67 ("drm/i915/uapi: convert drm_i915_gem_caching to kernel doc") 4a766ae40ec83301 ("drm/i915: Drop the CONTEXT_CLONE API (v2)") 6ff6d61dd2a943bd ("drm/i915: Drop I915_CONTEXT_PARAM_NO_ZEROMAP") fe4751c3d513ff4f ("drm/i915: Drop I915_CONTEXT_PARAM_RINGSIZE") 577729533cdc4e37 ("drm/i915: Document the Virtual Engine uAPI") c649432e86ca677d ("drm/i915: Fix busy ioctl commentary") That doesn't result in any changes to tooling as no new ioctl were added (at least not perceived by tools/perf/trace/beauty/drm_ioctl.sh). Addressing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h' diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jason Ekstrand <jason@jlekstrand.net> Cc: John Harrison <John.C.Harrison@Intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11tools headers UAPI: Sync linux/fs.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+1
To pick the change in: 7957d93bf32bc211 ("block: add ioctl to read the disk sequence number") It adds a new ioctl, but we are still not using that to generate tables for 'perf trace', so no changes in tooling. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fs.h' differs from latest version at 'include/uapi/linux/fs.h' diff -u tools/include/uapi/linux/fs.h include/uapi/linux/fs.h Cc: Jens Axboe <axboe@kernel.dk> Cc: Matteo Croce <mcroce@microsoft.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11tools headers UAPI: Sync linux/in.h copy with the kernel sourcesArnaldo Carvalho de Melo1-10/+32
To pick the changes in: db243b796439c0ca ("net/ipv4/ipv6: Replace one-element arraya with flexible-array members") 2d3e5caf96b9449a ("net/ipv4: Replace one-element array with flexible-array member") That don't result in any change in tooling, the structs changed remains with the same layout. This addresses this build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/in.h' differs from latest version at 'include/uapi/linux/in.h' diff -u tools/include/uapi/linux/in.h include/uapi/linux/in.h Cc: David S. Miller <davem@davemloft.net> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11perf tools: Add an option to build without libbfdIan Rogers1-22/+25
Some distributions, like debian, don't link perf with libbfd. Add a build flag to make this configuration buildable and testable. This was inspired by: https://lore.kernel.org/linux-perf-users/20210910102307.2055484-1-tonyg@leastfixedpoint.com/T/#u Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: tony garnock-jones <tonyg@leastfixedpoint.com> Link: http://lore.kernel.org/lkml/20210910225756.729087-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11perf tools: Allow build-id with trailing zerosNamhyung Kim1-0/+10
Currently perf saves a build-id with size but old versions assumes the size of 20. In case the build-id is less than 20 (like for MD5), it'd fill the rest with 0s. I saw a problem when old version of perf record saved a binary in the build-id cache and new version of perf reads the data. The symbols should be read from the build-id cache (as the path no longer has the same binary) but it failed due to mismatch in the build-id. symsrc__init: build id mismatch for /home/namhyung/.debug/.build-id/53/e4c2f42a4c61a2d632d92a72afa08f00000000/elf. The build-id event in the data has 20 byte build-ids, but it saw a different size (16) when it reads the build-id of the elf file in the build-id cache. $ readelf -n ~/.debug/.build-id/53/e4c2f42a4c61a2d632d92a72afa08f00000000/elf Displaying notes found in: .note.gnu.build-id Owner Data size Description GNU 0x00000010 NT_GNU_BUILD_ID (unique build ID bitstring) Build ID: 53e4c2f42a4c61a2d632d92a72afa08f Let's fix this by allowing trailing zeros if the size is different. Fixes: 39be8d0115b321ed ("perf tools: Pass build_id object to dso__build_id_equal()") Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210910224630.1084877-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11perf tools: Fix hybrid config terms list corruptionAdrian Hunter2-9/+27
A config terms list was spliced twice, resulting in a never-ending loop when the list was traversed. Fix by using list_splice_init() and copying and freeing the lists as necessary. This patch also depends on patch "perf tools: Factor out copy_config_terms() and free_config_terms()" Example on ADL: Before: # perf record -e '{intel_pt//,cycles/aux-sample-size=4096/pp}' uname & # jobs [1]+ Running perf record -e "{intel_pt//,cycles/aux-sample-size=4096/pp}" uname # perf top -E 10 PerfTop: 4071 irqs/sec kernel: 6.9% exact: 100.0% lost: 0/0 drop: 0/0 [4000Hz cycles], (all, 24 CPUs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 97.60% perf [.] __evsel__get_config_term 0.25% [kernel] [k] kallsyms_expand_symbol.constprop.13 0.24% perf [.] kallsyms__parse 0.15% [kernel] [k] _raw_spin_lock 0.14% [kernel] [k] number 0.13% [kernel] [k] advance_transaction 0.08% [kernel] [k] format_decode 0.08% perf [.] map__process_kallsym_symbol 0.08% perf [.] rb_insert_color 0.08% [kernel] [k] vsnprintf exiting. # kill %1 After: # perf record -e '{intel_pt//,cycles/aux-sample-size=4096/pp}' uname & Linux [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.060 MB perf.data ] # perf script | head perf-exec 604 [001] 1827.312293: psb: psb offs: 0 ffffffffb8415e87 pt_config_start+0x37 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb856a3bd event_sched_in.isra.133+0xfd ([kernel.kallsyms]) => ffffffffb856a9a0 perf_pmu_nop_void+0x0 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb856b10e merge_sched_in+0x26e ([kernel.kallsyms]) => ffffffffb856a2c0 event_sched_in.isra.133+0x0 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb856a45d event_sched_in.isra.133+0x19d ([kernel.kallsyms]) => ffffffffb8568b80 perf_event_set_state.part.61+0x0 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb8568b86 perf_event_set_state.part.61+0x6 ([kernel.kallsyms]) => ffffffffb85662a0 perf_event_update_time+0x0 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb856a35c event_sched_in.isra.133+0x9c ([kernel.kallsyms]) => ffffffffb8567610 perf_log_itrace_start+0x0 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb856a377 event_sched_in.isra.133+0xb7 ([kernel.kallsyms]) => ffffffffb8403b40 x86_pmu_add+0x0 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb8403b86 x86_pmu_add+0x46 ([kernel.kallsyms]) => ffffffffb8403940 collect_events+0x0 ([kernel.kallsyms]) perf-exec 604 1827.312293: 1 branches: ffffffffb8403a7b collect_events+0x13b ([kernel.kallsyms]) => ffffffffb8402cd0 collect_event+0x0 ([kernel.kallsyms]) Fixes: 30def61f64bac5 ("perf parse-events Create two hybrid cache events") Fixes: 94da591b1c7913 ("perf parse-events Create two hybrid raw events") Fixes: 9cbfa2f64c04d9 ("perf parse-events Create two hybrid hardware events") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Kan Liang <kan.liang@linux.intel.com> Link: https //lore.kernel.org/r/20210909125508.28693-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11perf tools: Factor out copy_config_terms() and free_config_terms()Adrian Hunter3-13/+19
Factor out copy_config_terms() and free_config_terms() so that they can be reused. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Kan Liang <kan.liang@linux.intel.com> Link: https //lore.kernel.org/r/20210909125508.28693-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11perf tools: Fix perf_event_attr__fprintf() missing/dupl. fieldsAdrian Hunter1-1/+4
Some fields are missing and text_poke is duplicated. Fix that up. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lore.kernel.org/lkml/20210911120550.12203-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-11perf tools: Ignore Documentation dependency fileIan Rogers1-0/+1
When building directly on the checked out repository the build process produces a file that should be ignored, so add it to .gitignore. Fixes: a81df63a5df3e195 ("perf doc: Fix doc.dep") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20210910232249.739661-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10riscv: Move EXCEPTION_TABLE to RO_DATA segmentJisheng Zhang2-3/+2
_ex_table section is read-only, so move it to RO_DATA. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: Enable BUILDTIME_TABLE_SORTJisheng Zhang2-0/+2
Enable BUILDTIME_TABLE_SORT to sort the exception table at build time rather than during boot. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: dts: microchip: mpfs-icicle: Fix serial consoleGeert Uytterhoeven1-1/+5
Currently, nothing is output on the serial console, unless "console=ttyS0,115200n8" or "earlycon" are appended to the kernel command line. Enable automatic console selection using chosen/stdout-path by adding a proper alias, and configure the expected serial rate. While at it, add aliases for the other three serial ports, which are provided on the same micro-USB connector as the first one. Fixes: 0fa6107eca4186ad ("RISC-V: Initial DTS for Microchip ICICLE board") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: move the (z)install rules to arch/riscv/MakefileMasahiro Yamada2-10/+5
Currently, the (z)install targets in arch/riscv/Makefile descend into arch/riscv/boot/Makefile to invoke the shell script, but there is no good reason to do so. arch/riscv/Makefile can run the shell script directly. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: Improve stack randomisation on RV64Kefeng Wang2-1/+4
This enlarges the bits availiable for stack randomisation on RV64 from the default of 8MiB to 1GiB, to match arm64 and x86. Also, update the documentation to reflect our support for stack randomisation. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> [Palmer: commit text] Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1Heinrich Schuchardt1-0/+2
The EFI system partition uses the FAT file system. Many distributions add an entry in /etc/fstab for the ESP. We must ensure that mounting does not fail. The default code page for FAT is 437 (cf. CONFIG_FAT_DEFAULT_CODEPAGE). The default IO character set is "iso8859-1" (cf. CONFIG_NLS_ISO8859_1). So let's enable NLS_CODEPAGE_437 and NLS_ISO8859_1 in defconfig. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10riscv: defconfig: enable BLK_DEV_NVMEHeinrich Schuchardt1-0/+2
NVMe is a non-volatile storage media attached via PCIe. As NVMe has much higher throughput than other block devices like SATA it is a must have for RISC-V. Enable CONFIG_BLK_DEV_NVME. The HiFive Unmatched is a board providing M.2 slots for NVMe drives. Enable CONFIG_PCIE_FU740. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-11Documentation: core-api/cpuhotplug: Rewrite the API sectionThomas Gleixner2-121/+590
Dave stumbled over the incomplete and confusing documentation of the CPU hotplug API. Rewrite it, add the missing function documentations and correct the existing ones. Reported-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210909123212.489059409@linutronix.de
2021-09-11cpu/hotplug: Remove deprecated CPU-hotplug functions.Sebastian Andrzej Siewior1-6/+0
No users in tree use the deprecated CPU-hotplug functions anymore. Remove them. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210803141621.780504-39-bigeasy@linutronix.de
2021-09-11thermal: Replace deprecated CPU-hotplug functions.Sebastian Andrzej Siewior1-2/+2
The functions get_online_cpus() and put_online_cpus() have been deprecated during the CPU hotplug rework. They map directly to cpus_read_lock() and cpus_read_unlock(). Replace deprecated CPU-hotplug functions with the official version. The behavior remains unchanged. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20210803141621.780504-20-bigeasy@linutronix.de
2021-09-10perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versionsArnaldo Carvalho de Melo1-0/+8
The btf__get_from_id() function was deprecated in favour of btf__load_from_kernel_by_id(), but it is still avaiable, so use it to provide a weak function btf__load_from_kernel_by_id() for older libbpf when building perf with LIBBPF_DYNAMIC=1, i.e. using the system's libbpf package. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10tools include UAPI: Update linux/mount.h copyArnaldo Carvalho de Melo1-1/+2
To pick the changes from: 9ffb14ef61bab83f ("move_mount: allow to add a mount into an existing group") That ends up adding support for the new MOVE_MOUNT_SET_GROUP move_mount flag. $ tools/perf/trace/beauty/move_mount_flags.sh > before $ cp include/uapi/linux/mount.h tools/include/uapi/linux/mount.h $ tools/perf/trace/beauty/move_mount_flags.sh > after $ diff -u before after --- before 2021-09-10 12:28:43.865279808 -0300 +++ after 2021-09-10 12:28:50.183429184 -0300 @@ -5,4 +5,5 @@ [ilog2(0x00000010) + 1] = "T_SYMLINKS", [ilog2(0x00000020) + 1] = "T_AUTOMOUNTS", [ilog2(0x00000040) + 1] = "T_EMPTY_PATH", + [ilog2(0x00000100) + 1] = "SET_GROUP", }; $ So now one can use it in --filter expressions for tracepoints. This silences this perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/linux/mount.h' differs from latest version at 'include/uapi/linux/mount.h' diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10perf beauty: Cover more flags in the move_mount syscall argument beautifierArnaldo Carvalho de Melo1-1/+1
Previously the regext expected MOVE_MOUNT_[FT]_*, but in the next patch a flag that doesn't match that expression will be added, MOVE_MOUNT_SET_GROUP To make this more future proof, take advantage of the fact that the only one we don't need to cover is MOVE_MOUNT__MASK and use MOVE_MOUNT_[^_]+_*_. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10tools headers UAPI: Sync linux/prctl.h with the kernel sourcesArnaldo Carvalho de Melo1-5/+7
To pick the changes in: 433c38f40f6a81cf ("arm64: mte: change ASYNC and SYNC TCF settings into bitfields") e893bb1bb4d2eb63 ("x86, prctl: Hook L1D flushing in via prctl") That don't result in any changes in tooling: $ tools/perf/trace/beauty/prctl_option.sh > before $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h $ tools/perf/trace/beauty/prctl_option.sh > after $ diff -u before after $ Just silences this perf tools build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h' diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h Cc: Balbir Singh <sblbir@amazon.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Peter Collingbourne <pcc@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10tools include UAPI: Sync sound/asound.h copy with the kernel sourcesArnaldo Carvalho de Melo1-0/+1
Picking the changes from: 81be10934949da8b ("ALSA: pcm: Add SNDRV_PCM_INFO_EXPLICIT_SYNC flag") Which entails no changes in the tooling side as it doesn't introduce new ioctls. To silence this perf tools build warning: Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h' diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo1-4/+7
To pick the changes in: f95937ccf5bd5e0a ("KVM: stats: Support linear and logarithmic histogram statistics") f0376edb1ddcab19 ("KVM: arm64: Add ioctl to fetch/store tags in a guest") ea7fc1bb1cd1b92b ("KVM: arm64: Introduce MTE VM feature") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, so that will pick the new KVM_STATS_TYPE_LINEAR_HIST and KVM_STATS_TYPE_LOG_HIST defines. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Jing Zhang <jingzhangos@google.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Steven Price <steven.price@arm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10tools headers UAPI: Sync x86's asm/kvm.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+1
To pick the changes in: 61e5f69ef08379cd ("KVM: x86: implement KVM_GUESTDBG_BLOCKIRQ") That just rebuilds kvm-stat.c on x86, no change in functionality. This silences these perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Cc: Maxim Levitsky <mlevitsk@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10perf report: Add support to print a textual representation of IBS raw sample dataKim Phillips4-1/+303
Perf records IBS (Instruction Based Sampling) extra sample data when 'perf record --raw-samples' is used with an IBS-compatible event, on a machine that supports IBS. IBS support is indicated in CPUID_Fn80000001_ECX bit #10. Up until now, users have been able to see the extra sample data solely in raw hex format using 'perf report --dump-raw-trace'. From there, users could decode the data either manually, or by using an external script. Enable the built-in 'perf report --dump-raw-trace' to do the decoding of the extra sample data bits, so manual or external script decoding isn't necessary. Example usage: $ sudo perf record -c 10000001 -a --raw-samples -e ibs_fetch/rand_en=1/,ibs_op/cnt_ctl=1/ -C 0,1 taskset -c 0,1 7za b -mmt2 | perf report --dump-raw-trace Stdout contains IBS Fetch samples, e.g.: ibs_fetch_ctl: 02170007ffffffff MaxCnt 1048560 Cnt 1048560 Lat 7 En 1 Val 1 Comp 1 IcMiss 0 PhyAddrValid 1 L1TlbPgSz 4KB L1TlbMiss 0 L2TlbMiss 0 RandEn 1 L2Miss 0 IbsFetchLinAd: 000056016b2ead40 IbsFetchPhysAd: 000000115cedfd40 c_ibs_ext_ctl: 0000000000000000 IbsItlbRefillLat 0 ..and IBS Op samples, e.g.: ibs_op_ctl: 0000009e009e8968 MaxCnt 10000000 En 1 Val 1 CntCtl 1=uOps CurCnt 158 IbsOpRip: 000056016b2ea73d ibs_op_data: 00000000000b0002 CompToRetCtr 2 TagToRetCtr 11 BrnRet 0 RipInvalid 0 BrnFuse 0 Microcode 0 ibs_op_data2: 0000000000000002 CacheHitSt 0=M-state RmtNode 0 DataSrc 2=Local node cache ibs_op_data3: 0000000000c60002 LdOp 0 StOp 1 DcL1TlbMiss 0 DcL2TlbMiss 0 DcL1TlbHit2M 0 DcL1TlbHit1G 0 DcL2TlbHit2M 0 DcMiss 0 DcMisAcc 0 DcWcMemAcc 0 DcUcMemAcc 0 DcLockedOp 0 DcMissNoMabAlloc 0 DcLinAddrValid 1 DcPhyAddrValid 1 DcL2TlbHit1G 0 L2Miss 0 SwPf 0 OpMemWidth 4 bytes OpDcMissOpenMemReqs 0 DcMissLat 0 TlbRefillLat 0 IbsDCLinAd: 00007f133c319ce0 IbsDCPhysAd: 0000000270485ce0 Committer notes: Fixed up this: util/amd-sample-raw.c: In function ‘evlist__amd_sample_raw’: util/amd-sample-raw.c:125:42: error: ‘ bytes’ directive output may be truncated writing 6 bytes into a region of size between 4 and 7 [-Werror=format-truncation=] 125 | " OpMemWidth %2d bytes", 1 << (reg.op_mem_width - 1)); | ^~~~~~ In file included from /usr/include/stdio.h:866, from util/amd-sample-raw.c:7: /usr/include/bits/stdio2.h:71:10: note: ‘__builtin___snprintf_chk’ output between 21 and 24 bytes into a destination of size 21 71 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 72 | __glibc_objsize (__s), __fmt, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 73 | __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors As that %2d won't limit the number of chars to 2, just state that 2 is the minimal width: $ cat printf.c #include <stdio.h> #include <stdlib.h> int main(int argc, char *argv[]) { char bf[64]; int len = snprintf(bf, sizeof(bf), "%2d", atoi(argv[1])); printf("strlen(%s): %u\n", bf, len); return 0; } $ ./printf 1 strlen( 1): 2 $ ./printf 12 strlen(12): 2 $ ./printf 123 strlen(123): 3 $ ./printf 1234 strlen(1234): 4 $ ./printf 12345 strlen(12345): 5 $ ./printf 123456 strlen(123456): 6 $ And since we probably don't want that output to be truncated, just assume the worst case, as the compiler did, and add a few more chars to that buffer. Also use sizeof(var) instead of sizeof(dup-of-wanted-format-string) to avoid bugs when changing one but not the other. I also had to change this: -#include <asm/amd-ibs.h> +#include "../../arch/x86/include/asm/amd-ibs.h" To make it build on other architectures, just like intel-pt does. Signed-off-by: Kim Phillips <kim.phillips@amd.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Link: https //lore.kernel.org/r/20210817221509.88391-4-kim.phillips@amd.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10perf report: Add tools/arch/x86/include/asm/amd-ibs.hKim Phillips2-0/+133
This is a tools/-side patch for the patch that adds the original copy of the IBS header file, in arch/x86/include/asm/. We also add an entry to check-headers.sh, so future changes continue to be copied. Committer notes: Had to add this -#include <asm/msr-index.h> +#include "msr-index.h" And change the check-headers.sh entry to ignore this line when diffing with the original kernel header. This is needed so that we can use 'perf report' on a perf.data with IBS data on a !x86 system, i.e. building on ARM fails without this as there is no asm/msr-index.h there. This was done on the next patch in this series and is done for things like Intel PT and ARM CoreSight. Signed-off-by: Kim Phillips <kim.phillips@amd.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Link: https //lore.kernel.org/r/20210817221509.88391-3-kim.phillips@amd.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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