Re: linux-next: build warning after merge of the drm tree

Hi all, On Wed, 21 May 2025 20:49:11 +1000 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > Error: Cannot open file drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c > > Introduced by commit > > c472d828348c ("drm/nouveau/

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Error: Cannot open file drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c Introduced by commit c472d828348c ("drm/nouveau/gsp: move subdev/engine impls to subdev/gsp/rm/r535/") -- Cheers, Stephen Ro

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Documentation/gpu/drm-compute.rst: WARNING: document isn't included in any toctree Introduced by commit b168ed458dde ("kernel/cgroup: Add "dmem" memory accounting cgroup") -- Cheers, Stephen Roth

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Documentation/core-api/cgroup.rst:6: WARNING: Title underline too short. Device Memory Cgroup API (dmemcg) = Introduced by commit b168ed458dde ("kernel/cgroup: Add "dmem" me

Re: linux-next: build warning after merge of the drm tree

On Wed, Feb 07, 2024 at 05:17:19PM +1100, Stephen Rothwell wrote: > Hi all, > > After merging the drm tree, today's linux-next build (htmldocs) > produced this warning: > > Documentation/gpu/rfc/index.rst:35: WARNING: toctree contains reference to > nonexisting document 'gpu/rfc/xe' > > Introdu

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Documentation/gpu/rfc/index.rst:35: WARNING: toctree contains reference to nonexisting document 'gpu/rfc/xe' Introduced by commit d11dc7aa98e5 ("drm/doc/rfc: Remove Xe's pre-merge plan") -- Cheer

Re: linux-next: build warning after merge of the drm tree

On Thu, 2024-01-25 at 11:33 +1100, Stephen Rothwell wrote: > Hi all, > > On Fri, 5 Jan 2024 17:47:45 +1100 Stephen Rothwell > wrote: > > > > After merging the drm tree, today's linux-next build (htmldocs) > > produced > > this warning: > > > > Warning: /sys/devices/.../hwmon/hwmon/curr1_crit is

Re: linux-next: build warning after merge of the drm tree

Hi all, On Fri, 5 Jan 2024 17:47:45 +1100 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > Warning: /sys/devices/.../hwmon/hwmon/curr1_crit is defined 2 times: > Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon:35

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Warning: /sys/devices/.../hwmon/hwmon/curr1_crit is defined 2 times: /home/s fr/next/next/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon:35 /home/sfr /next/next/Documentation/ABI/testing/sysfs-

Re: linux-next: build warning after merge of the drm tree

On Wed, 03 Jan 2024, Stephen Rothwell wrote: > OK, the only thing I can find is that there are 2 intel_wakeref.h files > that have different definitions for intel_wakeref_t: > > ./drivers/gpu/drm/i915/intel_wakeref.h:typedef unsigned long intel_wakeref_t; > ./drivers/gpu/drm/xe/compat-i915-headers

Re: linux-next: build warning after merge of the drm tree

Hi all, On Wed, 3 Jan 2024 12:19:11 +1100 Stephen Rothwell wrote: > > On Tue, 2 Jan 2024 11:12:22 +1100 Stephen Rothwell > wrote: > > > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > > produced this warning: > > > > In file included from include/drm/drm_mm.h:51

Re: linux-next: build warning after merge of the drm tree

Hi all, On Tue, 2 Jan 2024 11:12:22 +1100 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > In file included from include/drm/drm_mm.h:51, > from drivers/gpu/drm/xe/xe_bo_types.h:11, >

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: In file included from include/drm/drm_mm.h:51, from drivers/gpu/drm/xe/xe_bo_types.h:11, from drivers/gpu/drm/xe/xe_bo.h:11, from drivers/g

Re: linux-next: build warning after merge of the drm tree

Hi Stephen, Thanks for the report. I've fixed these locally, along with a few other doc issues I found. I'll get the patch out as soon as I can. Thanks, Donald On Fri, 2023-11-24 at 13:25 +1100, Stephen Rothwell wrote: > *** CAUTION: This email originates from a source not known to Imaginatio

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: include/uapi/drm/pvr_drm.h:1: warning: 'Flags for DRM_PVR_DEV_QUERY_HEAP_INFO_GET.' not found Introduced by commit 1088d89e5515 ("drm/imagination/uapi: Add PowerVR driver UAPI") -- Cheers, Stephe

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: drivers/gpu/drm/imagination/pvr_drv.c:1: warning: 'PowerVR Graphics Driver' not found Introduced by commit 815d8b0425ad ("drm/imagination: Add driver documentation") -- Cheers, Stephen Rothwell

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Documentation/gpu/imagination/uapi.rst:124: WARNING: Title underline too short. CREATE_HWRT_DATASET and DESTROY_HWRT_DATASET -- Introduced by commit 815d8b0425ad

Re: linux-next: build warning after merge of the drm tree

Hi all, On Wed, 12 Jul 2023 09:17:14 +1000 Stephen Rothwell wrote: > > On Thu, 30 Mar 2023 07:28:26 -0700 Rob Clark wrote: > > > > On Wed, Mar 29, 2023 at 8:28 PM Stephen Rothwell > > wrote: > > > > > > After merging the drm tree, today's linux-next build (htmldocs) produced > > > this warn

Re: linux-next: build warning after merge of the drm tree

Hi all, On Thu, 30 Mar 2023 07:28:26 -0700 Rob Clark wrote: > > On Wed, Mar 29, 2023 at 8:28 PM Stephen Rothwell > wrote: > > > > After merging the drm tree, today's linux-next build (htmldocs) produced > > this warning: > > > > include/uapi/linux/sync_file.h:77: warning: Function parameter or

Re: linux-next: build warning after merge of the drm tree

Hi Stephen, On Tue, Apr 11, 2023 at 04:02:36PM +1000, Stephen Rothwell wrote: > Hi all, > > After merging the drm tree, today's linux-next build (htmldocs) > produced this warning: > > drivers/gpu/drm/i915/gt/uc/intel_guc.h:274: warning: Function parameter or > member 'dbgfs_node' not described

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: drivers/gpu/drm/i915/gt/uc/intel_guc.h:274: warning: Function parameter or member 'dbgfs_node' not described in 'intel_guc' Introduced by commit 70b5ffb393f3 ("drm/i915/gt: Create per-gt debugfs fi

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: drivers/gpu/drm/i915/i915_perf.c:5307: warning: Function parameter or member 'i915' not described in 'i915_perf_ioctl_version' Introduced by commit 94d82e95219a ("drm/i915/perf: Pass i915 object to

Re: linux-next: build warning after merge of the drm tree

On Wed, Mar 29, 2023 at 8:28 PM Stephen Rothwell wrote: > > Hi all, > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > include/uapi/linux/sync_file.h:77: warning: Function parameter or member > 'num_fences' not described in 'sync_file_info' > thanks,

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: include/uapi/linux/sync_file.h:77: warning: Function parameter or member 'num_fences' not described in 'sync_file_info' Revealed by commit d71c11cc79d2 ("dma-buf/sync_file: Surface sync-file uABI")

Re: linux-next: build warning after merge of the drm tree

On Fri, Feb 03, 2023 at 01:46:22PM +1100, Stephen Rothwell wrote: > Hi all, > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > Documentation/gpu/i915:64: drivers/gpu/drm/i915/gt/intel_workarounds.c:32: > WARNING: Inline emphasis start-string without

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Documentation/gpu/i915:64: drivers/gpu/drm/i915/gt/intel_workarounds.c:32: WARNING: Inline emphasis start-string without end-string. Documentation/gpu/i915:64: drivers/gpu/drm/i915/gt/intel_workarounds

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: include/drm/drm_connector.h:203: warning: Enum value 'DRM_MODE_TV_MODE_MAX' not described in enum 'drm_connector_tv_mode' Introduced by commit 7d63cd8526f1 ("drm/connector: Add TV standard property

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: drivers/gpu/drm/drm_connector.c:1849: warning: bad line: Introduced by commit 7d63cd8526f1 ("drm/connector: Add TV standard property") -- Cheers, Stephen Rothwell pgpct7zIVq0YG.pgp Description:

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: drivers/gpu/drm/drm_atomic_state_helper.c:560: warning: Cannot understand * @drm_atomic_helper_connector_tv_check: Validate an analog TV connector state on line 560 - I thought it was a doc line Int

Re: linux-next: build warning after merge of the drm tree

On 11/6/2022 19:29, Stephen Rothwell wrote: Hi all, After merging the drm tree, today's linux-next build (KCONFIG_NAME) produced this warning: drivers/gpu/drm/i915/i915_perf_types.h:319: warning: Function parameter or member 'lock' not described in 'i915_perf_stream' Introduced by commit

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (KCONFIG_NAME) produced this warning: drivers/gpu/drm/i915/i915_perf_types.h:319: warning: Function parameter or member 'lock' not described in 'i915_perf_stream' Introduced by commit 2db609c01495 ("drm/i915/perf: Replace gt->perf.

Re: linux-next: build warning after merge of the drm tree

Hi Hans, On Wed, 2 Mar 2022 11:32:37 +0100 Hans de Goede wrote: > > On 3/2/22 02:34, Stephen Rothwell wrote: > > Hi all, > > > > On Wed, 2 Feb 2022 09:38:37 +0100 Hans de Goede > > wrote: > >> > >> On 2/2/22 05:03, Stephen Rothwell wrote: > >>> > >>> On Wed, 2 Feb 2022 15:02:01 +1100 Steph

Re: linux-next: build warning after merge of the drm tree

Hi, On 3/2/22 02:34, Stephen Rothwell wrote: > Hi all, > > On Wed, 2 Feb 2022 09:38:37 +0100 Hans de Goede wrote: >> >> On 2/2/22 05:03, Stephen Rothwell wrote: >>> >>> On Wed, 2 Feb 2022 15:02:01 +1100 Stephen Rothwell >>> wrote: After merging the drm tree, today's linux-next buil

Re: linux-next: build warning after merge of the drm tree

Hi all, On Wed, 2 Feb 2022 09:38:37 +0100 Hans de Goede wrote: > > On 2/2/22 05:03, Stephen Rothwell wrote: > > > > On Wed, 2 Feb 2022 15:02:01 +1100 Stephen Rothwell > > wrote: > >> > >> After merging the drm tree, today's linux-next build (htmldocs) produced > >> this warning: > >> > >> d

Re: linux-next: build warning after merge of the drm tree

Hi all, On Wed, 2 Feb 2022 15:10:45 +1100 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > include/drm/drm_connector.h:637: warning: Function parameter or member > 'edid_hdmi_rgb444_dc_modes' not described in 'drm_display

Re: linux-next: build warning after merge of the drm tree

Hi, On 2/2/22 05:03, Stephen Rothwell wrote: > Hi all, > > On Wed, 2 Feb 2022 15:02:01 +1100 Stephen Rothwell > wrote: >> >> After merging the drm tree, today's linux-next build (htmldocs) produced >> this warning: >> >> drivers/gpu/drm/drm_privacy_screen.c:X: warning: Function parameter or >>

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: include/drm/drm_connector.h:637: warning: Function parameter or member 'edid_hdmi_rgb444_dc_modes' not described in 'drm_display_info' include/drm/drm_connector.h:637: warning: Function parameter or me

Re: linux-next: build warning after merge of the drm tree

Hi all, On Wed, 2 Feb 2022 15:02:01 +1100 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > drivers/gpu/drm/drm_privacy_screen.c:X: warning: Function parameter or member > 'data' not described in 'drm_privacy_screen_registe

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: drivers/gpu/drm/drm_privacy_screen.c:X: warning: Function parameter or member 'data' not described in 'drm_privacy_screen_register' Introduced by commit 30598d925d46 ("drm/privacy_screen: Add drvda

Re: linux-next: build warning after merge of the drm tree

Quoting Stephen Rothwell (2021-10-27 23:51:55) > Hi Joonas, > > On Wed, 27 Oct 2021 15:12:44 +0300 Joonas Lahtinen > wrote: > > > > We should be now good to go and add drm-intel-gt-next to linux-next. > > > > The branch would be as follows: > > > > drm-intel-gt-next git://anongit.freedeskt

Re: linux-next: build warning after merge of the drm tree

Hi Joonas, On Wed, 27 Oct 2021 15:12:44 +0300 Joonas Lahtinen wrote: > > We should be now good to go and add drm-intel-gt-next to linux-next. > > The branch would be as follows: > > drm-intel-gt-next git://anongit.freedesktop.org/drm-intel > for-linux-next-gt > > Notice the "-gt" and the

Re: linux-next: build warning after merge of the drm tree

(+ Tvrtko who was recently added as a drm/i915 co-maintainer) Quoting Daniel Vetter (2021-01-22 10:40:48) > On Fri, Jan 22, 2021 at 8:29 AM Stephen Rothwell > wrote: > > > > Hi Daniel, > > > > On Fri, 22 Jan 2021 08:17:58 +0100 Daniel Vetter wrote: > > > > > > Hm that has been in drm-intel-gt-n

Re: linux-next: build warning after merge of the drm tree

Hi all, On Thu, 1 Apr 2021 18:19:33 +1100 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > drivers/gpu/drm/i915/gem/i915_gem_shrinker.c:102: warning: Function parameter > or member 'ww' not described in 'i915_gem_shrink'

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: drivers/gpu/drm/i915/gem/i915_gem_shrinker.c:102: warning: Function parameter or member 'ww' not described in 'i915_gem_shrink' Introduced by commit cf41a8f1dc1e ("drm/i915: Finally remove obj->mm.

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: include/drm/gpu_scheduler.h:304: warning: Function parameter or member '_score' not described in 'drm_gpu_scheduler' Introduced by commit f2f12eb9c32b ("drm/scheduler: provide scheduler score exter

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: drivers/gpu/drm/rockchip/rockchip_drm_vop.c: In function 'vop_plane_atomic_update': drivers/gpu/drm/rockchip/rockchip_drm_vop.c:882:26: warning: unused variable 'old_state' [-Wunused-var

Re: linux-next: build warning after merge of the drm tree

Hi all, On Fri, 22 Jan 2021 11:59:18 +1100 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > WARNING: unmet direct dependencies detected for DRM_I915_WERROR > Depends on [n]: HAS_IOMEM [=y] && DRM_I915 [=m] && E

Re: linux-next: build warning after merge of the drm tree

On Fri, Jan 22, 2021 at 8:29 AM Stephen Rothwell wrote: > > Hi Daniel, > > On Fri, 22 Jan 2021 08:17:58 +0100 Daniel Vetter wrote: > > > > Hm that has been in drm-intel-gt-next for a few days, is that tree not > > in linux-next? > > It is not. Adding -intel maintainers to get that sorted. -Danie

Re: linux-next: build warning after merge of the drm tree

Hi Daniel, On Fri, 22 Jan 2021 08:17:58 +0100 Daniel Vetter wrote: > > Hm that has been in drm-intel-gt-next for a few days, is that tree not > in linux-next? It is not. These are the drm branches currently in linux-next: drm-fixes git://git.freedesktop.org/git/drm/drm.git drm-fix

Re: linux-next: build warning after merge of the drm tree

On Fri, Jan 22, 2021 at 1:59 AM Stephen Rothwell wrote: > > Hi all, > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > WARNING: unmet direct dependencies detected for DRM_I915_WERROR > Depends on [n]: HAS_IOMEM [=y] && DRM_I915 [=m] && EXP

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: WARNING: unmet direct dependencies detected for DRM_I915_WERROR Depends on [n]: HAS_IOMEM [=y] && DRM_I915 [=m] && EXPERT [=y] && !COMPILE_TEST [=y] Selected by [m]: - DRM_I915_DEBUG [

Re: linux-next: build warning after merge of the drm tree

Hi Stephen, On Thu, 5 Nov 2020 18:02:50 +1100 Stephen Rothwell wrote: > > Hi all, > > After merging the drm tree, today's linux-next build (htmldocs) produced > this warning: > > Documentation/gpu/drm-kms:466: drivers/gpu/drm/drm_crtc.c:236: WARNING: > Unexpected indentation. > Documentation/

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (htmldocs) produced this warning: Documentation/gpu/drm-kms:466: drivers/gpu/drm/drm_crtc.c:236: WARNING: Unexpected indentation. Documentation/gpu/drm-kms:466: drivers/gpu/drm/drm_crtc.c:237: WARNING: Block quote ends without a blank

Re: linux-next: build warning after merge of the drm tree

Hi all, On Wed, 23 Sep 2020 13:36:01 +1000 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c: In function > 'cdns_mhdp_fw_activate': > drivers/gpu/drm/bridge/ca

Re: linux-next: build warning after merge of the drm tree

Hi Stephen, On 23/09/2020 06:36, Stephen Rothwell wrote: > Hi all, > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c: In function > 'cdns_mhdp_fw_activate': > drivers/gpu/drm/bridge/cad

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c: In function 'cdns_mhdp_fw_activate': drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c:751:10: warning: conversion from 'long unsigned

Re: linux-next: build warning after merge of the drm tree

On 5/10/20 8:47 PM, Stephen Rothwell wrote: > Hi all, > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: > > WARNING: modpost: missing MODULE_LICENSE() in > drivers/gpu/drm/panel/panel-visionox-rm69299.o > > Introduced by commit > > c7f66d

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: WARNING: modpost: missing MODULE_LICENSE() in drivers/gpu/drm/panel/panel-visionox-rm69299.o Introduced by commit c7f66d32dd43 ("drm/panel: add support for rm69299 visionox panel") --

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: drivers/gpu/drm/amd/amdgpu/../display/modules/power/power_helpers.c:160:9: warning: #pragma pack (pop) encountered without matching #pragma pack (push) [-Wpragmas] #pragma pack(pop)

Re: linux-next: build warning after merge of the drm tree

Hi all, On Mon, 25 Jun 2018 14:22:07 +1000 Stephen Rothwell wrote: > > Hi Paul, Hmm, not Paul at all :-) -- Cheers, Stephen Rothwell pgpyQcUemQHUo.pgp Description: OpenPGP digital signature ___ dri-devel mailing list dri-devel@lists.freed

linux-next: build warning after merge of the drm tree

Hi Paul, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: drivers/gpu/drm/gma500/mdfld_intel_display.c: In function 'mdfld__intel_pipe_set_base': drivers/gpu/drm/gma500/mdfld_intel_display.c:170:26: warning: unused variable 'psbfb' [-Wunused-vari

Re: linux-next: build warning after merge of the drm tree

Hi all, On Mon, 19 Feb 2018 10:18:17 +1100 Stephen Rothwell wrote: > > After merging the drm tree, today's linux-next build (arm > multi_v7_defconfig) produced this warning: > > In file included from include/linux/list.h:9:0, > from include/linux/wait.h:7, > fr

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: In file included from include/linux/list.h:9:0, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6,

Re: linux-next: build warning after merge of the drm tree

On 4 December 2017 at 10:30, Stephen Rothwell wrote: > Hi all, > > After merging the drm tree, today's linux-next build (x86_64 allmodconfig) > produced this warning: Oops, not sure how I missed it, force pushed drm-next with the merge fixed. Dave. ___

linux-next: build warning after merge of the drm tree

Hi all, After merging the drm tree, today's linux-next build (x86_64 allmodconfig) produced this warning: drivers/gpu/drm/i915/gvt/cmd_parser.c: In function 'perform_bb_shadow': drivers/gpu/drm/i915/gvt/cmd_parser.c:1647:8: warning: unused variable 'dst' [-Wunused-variable] void *dst = NULL;