On Tue, Apr 20, 2021 at 03:02:51PM +0300, Andy Shevchenko wrote:
> On Tue, Apr 20, 2021 at 07:47:18PM +1000, Stephen Rothwell wrote:
> > Hi all,
> > 
> > Changes since 20210419:
> > 
> > The powerpc tree lost its build failure.
> > 
> > The ftrace tree gained a conflict against the bpf-next tree.
> > 
> > Non-merge commits (relative to Linus' tree): 12917
> >  11294 files changed, 619161 insertions(+), 276245 deletions(-)
> > 
> > ----------------------------------------------------------------------------
> > 
> > I have created today's linux-next tree at
> > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> > (patches at http://www.kernel.org/pub/linux/kernel/next/ ).  If you
> > are tracking the linux-next tree using git, you should not use "git pull"
> > to do so as that will try to merge the new linux-next release with the
> > old one.  You should use "git fetch" and checkout or reset to the new
> > master.
> > 
> > You can see which trees have been included by looking in the Next/Trees
> > file in the source.  There are also quilt-import.log and merge.log
> > files in the Next directory.  Between each merge, the tree was built
> > with a ppc64_defconfig for powerpc, an allmodconfig for x86_64, a
> > multi_v7_defconfig for arm and a native build of tools/perf. After
> > the final fixups (if any), I do an x86_64 modules_install followed by
> > builds for x86_64 allnoconfig, powerpc allnoconfig (32 and 64 bit),
> > ppc44x_defconfig, allyesconfig and pseries_le_defconfig and i386, sparc
> > and sparc64 defconfig and htmldocs. And finally, a simple boot test
> > of the powerpc pseries_le_defconfig kernel in qemu (with and without
> > kvm enabled).
> > 
> > Below is a summary of the state of the merge.
> > 
> > I am currently merging 340 trees (counting Linus' and 89 trees of bug
> > fix patches pending for the current merge release).
> > 
> > Stats about the size of the tree over time can be seen at
> > http://neuling.org/linux-next-size.html .
> > 
> > Status of my local build tests will be at
> > http://kisskb.ellerman.id.au/linux-next .  If maintainers want to give
> > advice about cross compilers/configs that work, we are always open to add
> > more builds.
> > 
> > Thanks to Randy Dunlap for doing many randconfig builds.  And to Paul
> > Gortmaker for triage and bug fixes.
> 
> I have full of build warnings / errors in x86 and iommu
> 
> X86:
> 
> arch/x86/include/asm/string_64.h:14:14: warning: conflicting types for 
> built-in function ‘memcpy’; expected ‘void *(void *, const void *, long 
> unsigned int)’ [-Wbuiltin-declaration-mismatch]
>    14 | extern void *memcpy(void *to, const void *from, size_t len);
>       |              ^~~~~~
> arch/x86/include/asm/string_64.h:7:1: note: ‘memcpy’ is declared in header 
> ‘<string.h>’
>     6 | #include <linux/jump_label.h>
>   +++ |+#include <string.h>
> 
> And so on for standard string function definitions.
> 
> IOMMU:
> 
> drivers/iommu/amd/io_pgtable.c: In function ‘v1_alloc_pgtable’:
> drivers/iommu/amd/io_pgtable.c:551:32: error: assignment to ‘size_t 
> (*)(struct io_pgtable_ops *, long unsigned int,  size_t,  struct 
> iommu_iotlb_gather *)’ {aka ‘unsigned int (*)(struct io_pgtable_ops *, long 
> unsigned int,  unsigned int,  struct iommu_iotlb_gather *)’} from 
> incompatible pointer type ‘long unsigned int (*)(struct io_pgtable_ops *, 
> long unsigned int,  size_t,  struct iommu_iotlb_gather *)’ {aka ‘long 
> unsigned int (*)(struct io_pgtable_ops *, long unsigned int,  unsigned int,  
> struct iommu_iotlb_gather *)’} [-Werror=incompatible-pointer-types]
>   551 |  pgtable->iop.ops.unmap        = iommu_v1_unmap_page;
>       |                                ^
> cc1: some warnings being treated as errors
> 
> Is it only me?

Okay, there is another bug and it seems compiler related:

net/socket.c:2320:3: note: in expansion of macro ‘BUILD_BUG_ON’
 2320 |   BUILD_BUG_ON(sizeof(struct cmsghdr) !=
      |   ^~~~~~~~~~~~

% gcc --version
gcc (Debian 10.2.1-6) 10.2.1 20210110
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

-- 
With Best Regards,
Andy Shevchenko


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