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Attached warnings from clang 7.0 when compiling child-wait.c from dovecot 2.3.5: "arithmetic on a null pointer treated as a cast from integer to pointer is a GNU extension [-Wnull-pointer-arithmetic]". -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20190318/a5b5d2d4/attachment.html> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Nam...

...o/virtio_ring.c:6: In file included from include/linux/virtio.h:7: In file included from include/linux/scatterlist.h:9: In file included from arch/s390/include/asm/io.h:72: include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le...

...oss ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp at intel.com> All warnings (new ones prefixed by >>): include/asm-generic/io.h:490:45: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu(__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le...

On 18.3.2019 12.48, Rupert Gallagher via dovecot wrote: > Attached warnings from clang 7.0 when compiling child-wait.c from > dovecot 2.3.5: > > "arithmetic on a null pointer treated as a cast from integer to > pointer is a GNU extension > [-Wnull-pointer-arithmetic]". > > > This is fixed in master with https://github.com/dovecot/core/commit/ac7aa955db4c77bbb169baa5d104a4c128674646.patch Aki -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20...

Hi all, The goal of the series is to give a chance to the architecture to validate VIRTIO device features. The tests are back to virtio_finalize_features. No more argument for the architecture callback which only reports if the architecture needs guest memory access restrictions for VIRTIO. I renamed the callback to arch_has_restricted_virtio_memory_access, and the config option to

Hi all, The goal of the series is to give a chance to the architecture to validate VIRTIO device features. The tests are back to virtio_finalize_features. No more argument for the architecture callback which only reports if the architecture needs guest memory access restrictions for VIRTIO. I renamed the callback to arch_has_restricted_virtio_memory_access, the config option to

Hi all, The goal of the series is to give a chance to the architecture to validate VIRTIO device features. The tests are back to virtio_finalize_features. No more argument for the architecture callback which only reports if the architecture needs guest memory access restrictions for VIRTIO. I renamed the callback to arch_has_restricted_virtio_memory_access, the config option to

...but not used [-Werror,-Wunused-but-set-variable] drivers/gpu/drm/qxl/qxl_ioctl.c:148:14: error: variable 'num_relocs' set but not used [-Werror,-Wunused-but-set-variable] include/asm-generic/io.h:547:31: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] mm/mempolicy.c:2223: warning: expecting prototype for alloc_pages_mpol_noprof(). Prototype was for alloc_pages_mpol() instead mm/mempolicy.c:2298: warning: expecting prototype for vma_alloc_folio_noprof(). Prototype was for vma_alloc_folio() instead mm/mempolicy.c:2326: warning:...

...VE_KERNEL_OPTION_HEADERS -include opt_global.h -mno-aes -mno-avx -mno-mmx -mno-sse -msoft-float -ffreestanding -fstack-protector -Werror /usr/src/sys/dev/sound/usb/uaudio.c In file included from /usr/src/sys/dev/sound/usb/uaudio.c:70: ./usbdevs.h:3567:65: error: null character ignored [-Werror,-Wnull-character] #define USB_PRODUCT_SAMSUNG_YP_U4 0x5092 /* YP-U4 MP3 Player */ ^ 1 error generated. *** [uaudio.o] Error code 1 Stop in /usr/obj/usr/src/sys/MYKERN. *** [buildkernel] Error code 1 Stop in /usr/src. *** [buildkernel] Error code 1 Stop in /usr/src. Second b...

...NULL; } +/* GCC can't work out that the YAJL_IS_<foo> test is sufficient to + * ensure that YAJL_GET_<foo> later doesn't return NULL. + */ +#pragma GCC diagnostic push +#if defined(__GNUC__) && __GNUC__ >= 6 /* gcc >= 6 */ +#pragma GCC diagnostic ignored "-Wnull-dereference" +#endif + +/** + * Test if the QMP schema contains a particular C<(key, value)> pair + * (anywhere). QMP is almost impossible to parse sanely so this is + * the minimum we need to detect if C<"locking"> is supported. + */ +static int +qmp_schema_contains (ya...

...stdio.h> #include <string.h> -/* GCC can't work out that the YAJL_IS_<foo> test is sufficient to - * ensure that YAJL_GET_<foo> later doesn't return NULL. - */ -#if defined(__GNUC__) && __GNUC__ >= 6 /* gcc >= 6 */ -#pragma GCC diagnostic ignored "-Wnull-dereference" -#endif - #define Val_none (Val_int (0)) value virt_builder_yajl_tree_parse (value stringv); static value -convert_yajl_value (yajl_val val, int level) +convert_json_t (json_t *val, int level) { CAMLparam0 (); CAMLlocal4 (rv, lv, v, sv); @@ -48,46 +41,51 @@ convert_y...

...stdio.h> #include <string.h> -/* GCC can't work out that the YAJL_IS_<foo> test is sufficient to - * ensure that YAJL_GET_<foo> later doesn't return NULL. - */ -#if defined(__GNUC__) && __GNUC__ >= 6 /* gcc >= 6 */ -#pragma GCC diagnostic ignored "-Wnull-dereference" -#endif - #define Val_none (Val_int (0)) value virt_builder_yajl_tree_parse (value stringv); static value -convert_yajl_value (yajl_val val, int level) +convert_json_t (json_t *val, int level) { CAMLparam0 (); CAMLlocal4 (rv, lv, v, sv); @@ -48,46 +41,51 @@ convert_y...

...rror:unused-function-drm_mm_interval_tree_insert-Werror-Wunused-function | |-- drivers-gpu-drm-drm_mm.c:error:unused-function-drm_mm_interval_tree_iter_next-Werror-Wunused-function | |-- include-asm-generic-io.h:error:performing-pointer-arithmetic-on-a-null-pointer-has-undefined-behavior-Werror-Wnull-pointer-arithmetic | `-- include-linux-vmstat.h:error:arithmetic-between-different-enumeration-types-(-enum-node_stat_item-and-enum-lru_list-)-Werror-Wenum-enum-conversion |-- hexagon-allyesconfig | |-- drivers-gpu-drm-drm_mm.c:error:unused-function-drm_mm_interval_tree_insert-Werror-Wunused-fu...

Hi, recently, there was a discussion in the development list of libvirt on switching to a different JSON library than YAJL [1]. Since we use YAJL, and the points there IMHO apply to libguestfs as well, I decided to give a try in switching to Jansson [2]. The result IMHO is nice, with the additional APIs of Jansson that simplify some of our code. Unlike with YAJL, I did not set a minimum

Hi, recently, there was a discussion in the development list of libvirt on switching to a different JSON library than YAJL [1]. Since we use YAJL, and the points there IMHO apply to libguestfs as well, I decided to give a try in switching to Jansson [2]. The result IMHO is nice, with the additional APIs of Jansson that simplify some of our code. Unlike with YAJL, I did not set a minimum

...rgs -Wmisleading-indentation -Wmissing-attributes -Wmissing-braces -Wmissing-declarations -Wmissing-field-initializers -Wmissing-include-dirs -Wmissing-parameter-type -Wmissing-profile -Wmissing-prototypes -Wmultichar -Wmultistatement-macros -Wnarrowing -Wnested-externs -Wnonnull -Wnonnull-compare -Wnull-dereference -Wodr -Wold-style-declaration -Wold-style-definition -Wopenmp-simd -Woverflow -Woverride-init -Wpacked-bitfield-compat -Wpacked-not-aligned -Wparentheses -Wpointer-arith -Wpointer-compare -Wpointer-sign -Wpointer-to-int-cast -Wpragmas -Wpsabi -Wrestrict -Wreturn-local-addr -Wreturn-type...

On Thu, Sep 24, 2020 at 2:58 PM Ján Tomko <jtomko@redhat.com> wrote: > On a Thursday in 2020, Wei Wang wrote: > >Seems it didn't appear on the mailing list, resent it. > > > > Hi folks, > > > >I'm trying to build libvirt using meson with the latest upstream libvirt, > >but the compilation fails: > >(followed on

...r-gfp_mask-not-described-in-mempool_create_node | `-- mm-mempool.c:warning:Function-parameter-or-struct-member-node_id-not-described-in-mempool_create_node |-- hexagon-allmodconfig | |-- include-asm-generic-io.h:error:performing-pointer-arithmetic-on-a-null-pointer-has-undefined-behavior-Werror-Wnull-pointer-arithmetic | |-- mm-mempool.c:warning:Function-parameter-or-struct-member-gfp_mask-not-described-in-mempool_create_node | `-- mm-mempool.c:warning:Function-parameter-or-struct-member-node_id-not-described-in-mempool_create_node |-- hexagon-allnoconfig | |-- mm-mempool.c:warning:Functi...

The patch I posted last week to disable mandatory locking for readonly drives (https://www.redhat.com/archives/libguestfs/2017-September/msg00013.html) was wrong in a couple of respects. Firstly it didn't work, which I didn't detect because my tests were testing the wrong thing. Oops. Secondly it used a simple version number check to detect qemu binaries implementing mandatory locking.

v2 -> v3: - I addressed everything that Pino mentioned last time. - It's tricky to get a stable run when multiple copies of qemu are involved, because the same cache files get overwritten by parallel libguestfs. So I changed the names of the cache files to include the qemu binary key (size, mtime), which removes this conflict. This is in new patch 4/6. Rich.