Messages in this thread | | | From | Arnd Bergmann <> | Date | Tue, 23 Nov 2021 14:19:56 +0100 | Subject | Re: spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested' |
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On Tue, Nov 23, 2021 at 12:38 PM Naresh Kamboju <naresh.kamboju@linaro.org> wrote: > > While building Linux next 20211123 tag for sh with gcc-11 > following warnings / errors noticed.
Nothing in here looks like a recent regression from either the kernel or gcc-11.
> make --silent --keep-going --jobs=8 > O=/home/tuxbuild/.cache/tuxmake/builds/current ARCH=sh > CROSS_COMPILE=sh4-linux-gnu- 'CC=sccache sh4-linux-gnu-gcc' > 'HOSTCC=sccache gcc' > Generating include/generated/machtypes.h > <stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp] > <stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
These happen with any compiler version, someone needs to write the correct entry code for clone3 and hook up futex_waitv().
> include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements
These are old bugs, they show up in any kernel version with gcc-8 or higher.
> fs/mpage.c:336:1: warning: the frame size of 1092 bytes is larger than
I see these going back to gcc-6, it looks like this is caused by CONFIG_PAGE_SIZE_64KB.
Arnd
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