Date:   Wed, 10 Jan 2018 16:45:34 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     "kernelci.org bot" <bot@...nelci.org>
Cc:     Kernel Build Reports Mailman List 
        <kernel-build-reports@...ts.linaro.org>,
        Christian König <christian.koenig@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Hellstrom <thellstrom@...are.com>,
        Dave Airlie <airlied@...hat.com>, Roger He <Hongbo.He@....com>,
        Maarten Lankhorst <maarten.lankhorst@...onical.com>,
        Francisco Jerez <currojerez@...eup.net>,
        Viresh Kumar <vireshk@...nel.org>,
        Shiraz Hashim <shiraz.linux.kernel@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: next/master build: 198 builds: 1 failed, 197 passed, 1 error, 148
 warnings (next-20180110)

On Wed, Jan 10, 2018 at 7:59 AM, kernelci.org bot <bot@...nelci.org> wrote:
>
> next/master build: 198 builds: 1 failed, 197 passed, 1 error, 148 warnings (next-20180110)
>
> Errors summary:
> 1 drivers/perf/arm_dsu_pmu.c:661:2: error: implicit declaration of function 'bitmap_from_u32array' [-Werror=implicit-function-declaration]

I sent a patch, waiting for it to get merged

> Warnings summary:

> 1 arch/x86/kvm/mmu.c:5485:2: warning: ignoring return value of 'register_shrinker', declared with attribute warn_unused_result [-Wunused-result]

I have a patch for this, will send after some more testing.

> 14 drivers/gpu/drm/ttm/ttm_page_alloc_dma.c:1186:2: warning: ignoring return value of 'register_shrinker', declared with attribute warn_unused_result [-Wunused-result]
> 14 drivers/gpu/drm/ttm/ttm_page_alloc.c:485:2: warning: ignoring return value of 'register_shrinker', declared with attribute warn_unused_result [-Wunused-result]

ttm and kvm are now the last user of register_shrinker that doesn't
propagate the return code to its
caller, all other callers got fixed in one way or another.

I tried to fix this one too, but couldn't come up with a proper way of
unwinding both
kobject_init_and_add() and ttm_pool_mm_shrink_init():

        ret = kobject_init_and_add(&_manager->kobj, &ttm_pool_kobj_type,
                                   &glob->kobj, "pool");
        if (unlikely(ret != 0)) {
                kobject_put(&_manager->kobj);
                _manager = NULL;
                return ret;
        }

        ttm_pool_mm_shrink_init(_manager);

Calling kobject_put() after a failed kobject_init_and_add() seemed wrong,
and it also appears to be missing a kfree(), so I didn't want to mess it
up any further. Added a few people to Cc that touched this file most,
maybe one of them can have a look, or they already have a patch waiting
to get merged.

> 4 WARNING: modpost: missing MODULE_LICENSE() in net/9p/9pnet_xen.o
> 4 WARNING: modpost: missing MODULE_LICENSE() in drivers/auxdisplay/img-ascii-lcd.o

Patches for these two got posted a while ago but never picked up. I've
merged those
into my tree, and plan to forward them to Andrew Morton.

> 3 WARNING: modpost: missing MODULE_LICENSE() in sound/soc/ux500/snd-soc-ux500-plat-dma.o
> 3 WARNING: modpost: missing MODULE_LICENSE() in sound/soc/ux500/snd-soc-ux500-mach-mop500.o
> 3 WARNING: modpost: missing MODULE_LICENSE() in drivers/video/fbdev/mmp/mmp_disp.o
> 2 WARNING: modpost: missing MODULE_LICENSE() in drivers/phy/qualcomm/phy-qcom-ufs.o
> 2 WARNING: modpost: missing MODULE_LICENSE() in drivers/net/ethernet/cirrus/cs89x0.o
> 2 WARNING: modpost: missing MODULE_LICENSE() in arch/arm/mach-pxa/tosa-bt.o
> 2 WARNING: modpost: missing MODULE_LICENSE() in arch/arm/common/bL_switcher_dummy_if.o

I made patches for these now, will send them in a bit.

> 7 arch/arm/boot/dts/spear1340-evb.dtb: Warning (dmas_property): Property 'dmas', cell 4 is not a phandle reference in /ahb/apb/serial@...00000
> 7 arch/arm/boot/dts/spear1340-evb.dtb: Warning (dmas_property): Missing property '#dma-cells' in node /interrupt-controller@...01000 or bad phandle (referred from /ahb/apb/serial@...00000:dmas[4])
> 7 arch/arm/boot/dts/spear1310-evb.dtb: Warning (gpios_property): Property 'cs-gpios', cell 6 is not a phandle reference in /ahb/apb/spi@...00000
> 7 arch/arm/boot/dts/spear1310-evb.dtb: Warning (gpios_property): Missing property '#gpio-cells' in node /interrupt-controller@...01000 or bad phandle (referred from /ahb/apb/spi@...00000:cs-gpios[6])
> 2 arch/arm/boot/dts/spear600-evb.dtb: Warning (interrupts_property): Missing interrupt-parent for /ahb/apb/rtc@...00000

Viresh, could you have a look here?

> 2 arch/arm/boot/dts/ste-nomadik-s8815.dtb: Warning (interrupts_property): Missing interrupt-parent for /amba/clcd@...20000
> 2 arch/arm/boot/dts/ste-nomadik-nhk15.dtb: Warning (interrupts_property): Missing interrupt-parent for /amba/clcd@...20000

Linus, can you look at this? I don't know which interrupt-parent is
the right one here, maybe
you can find out from the hardware or some documentation you have.

> 2 arch/arm/boot/dts/lpc3250-phy3250.dtb: Warning (gpios_property): reset-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@...A0000/uda1380@18
> 2 arch/arm/boot/dts/lpc3250-phy3250.dtb: Warning (gpios_property): power-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@...A0000/uda1380@18
> 2 arch/arm/boot/dts/lpc3250-ea3250.dtb: Warning (gpios_property): reset-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@...A0000/uda1380@18
> 2 arch/arm/boot/dts/lpc3250-ea3250.dtb: Warning (gpios_property): power-gpio property size (12) too small for cell size 3 in /ahb/apb/i2c@...A0000/uda1380@18

I finally found the answer here and got a patch now.

> 6 arch/arm/boot/dts/stih410-b2260.dtb: Warning (gpios_property): hdmi,hpd-gpio property size (8) too small for cell size 2 in /soc/sti-display-subsystem/sti-hdmi@...4000
> 6 arch/arm/boot/dts/stih410-b2120.dtb: Warning (gpios_property): hdmi,hpd-gpio property size (8) too small for cell size 2 in /soc/sti-display-subsystem/sti-hdmi@...4000
> 6 arch/arm/boot/dts/stih407-b2120.dtb: Warning (gpios_property): hdmi,hpd-gpio property size (8) too small for cell size 2 in /soc/sti-display-subsystem/sti-hdmi@...4000

Patrice Chotard sent a patch.

> 5 arch/arm64/boot/dts/mediatek/mt8173-evb.dtb: Warning (cooling_device_property): Missing property '#cooling-cells' in node /cpus/cpu@100 or bad phandle (referred from /thermal-zones/cpu_thermal/cooling-maps/map@1:cooling-device[0])
> 5 arch/arm64/boot/dts/mediatek/mt8173-evb.dtb: Warning (cooling_device_property): Missing property '#cooling-cells' in node /cpus/cpu@0 or bad phandle (referred from /thermal-zones/cpu_thermal/cooling-maps/map@0:cooling-device[0])

I have an older patch that I should send.

> 5 arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dtb: Warning (interrupts_property): Missing interrupt-parent for /pmu

I'll get this one.

> 2 fs/cifs/smbdirect.c: In function 'smbd_recv_buf':
> 2 include/linux/spinlock.h:260:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]

Haven't seen this one yet, needs more investigation

> 2 arch/arm/boot/dts/s5pv210-torbreck.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@...00000
> 2 arch/arm/boot/dts/s5pv210-smdkv210.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@...00000
> 2 arch/arm/boot/dts/s5pv210-smdkc110.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@...00000
> 2 arch/arm/boot/dts/s5pv210-goni.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@...00000
> 2 arch/arm/boot/dts/s5pv210-aquila.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@...00000

I need to pick up the right patch here.

> 1 arch/x86/kernel/cpu/mcheck/mce.c:237:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

I have a patch, will send in a bit.

> 2 arch/x86/kernel/cpu/bugs.c:79:12: warning: 'spectre_v2_enabled' defined but not used [-Wunused-variable]

Haven't run into this one yet.

> 1 arch/arm/mm/cache-b15-rac.c:353:1: warning: label 'out_unmap' defined but not used [-Wunused-label]
> 1 arch/arm/mm/cache-b15-rac.c:351:1: warning: label 'out_cpu_dead' defined but not used [-Wunused-label]

My patch is in Russell's patch tracker now.

> 1 arch/arm/configs/omap2plus_defconfig:322:warning: symbol value 'm' invalid for LIRC

I need to address this.

       Arnd

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