Buildresult: powerpc-next/44x/sam440ep_defconfig/powerpc-gcc4.6 built on Oct 17 2019, 11:44

kisskb

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Status:	OK
Date/Time:	Oct 17 2019, 11:44
Duration:	0:00:58.676452
Builder:	ka2
Revision:	powerpc/nvdimm: Update vmemmap_populated to check sub-section range (`c145ff82749b4daa660ab4739f5412b2d62e2d8a)`
Target:	powerpc-next/44x/sam440ep_defconfig/powerpc-gcc4.6
Branch:	powerpc-next
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	44x/sam440ep_defconfig (download)
Log:	Download original Possible warnings (7) kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify c145ff82749b4daa660ab4739f5412b2d62e2d8a^{commit} c145ff82749b4daa660ab4739f5412b2d62e2d8a already have revision, skipping fetch # git checkout -q -f -B kisskb c145ff82749b4daa660ab4739f5412b2d62e2d8a # git clean -qxdf # < git log -1 # commit c145ff82749b4daa660ab4739f5412b2d62e2d8a # Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> # Date: Tue Sep 17 18:08:51 2019 +0530 # # powerpc/nvdimm: Update vmemmap_populated to check sub-section range # # With commit: 7cc7867fb061 ("mm/devm_memremap_pages: enable sub-section remap") # pmem namespaces are remapped in 2M chunks. On architectures like ppc64 we # can map the memmap area using 16MB hugepage size and that can cover # a memory range of 16G. # # While enabling new pmem namespaces, since memory is added in sub-section chunks, # before creating a new memmap mapping, kernel should check whether there is an # existing memmap mapping covering the new pmem namespace. Currently, this is # validated by checking whether the section covering the range is already # initialized or not. Considering there can be multiple namespaces in the same # section this can result in wrong validation. Update this to check for # sub-sections in the range. This is done by checking for all pfns in the range we # are mapping. # # We could optimize this by checking only just one pfn in each sub-section. But # since this is not fast-path we keep this simple. # # Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20190917123851.22553-1-aneesh.kumar@linux.ibm.com # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 c145ff82749b4daa660ab4739f5412b2d62e2d8a # < make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_sam440ep_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- 44x/sam440ep_defconfig # make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_sam440ep_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x5e8bc4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Image Name: Linux-5.4.0-rc2-gc145ff82749b Created: Thu Oct 17 11:45:33 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3056577 Bytes = 2984.94 KiB = 2.91 MiB Load Address: 00600000 Entry Point: 006014e0 Completed OK # rm -rf /kisskb/build/powerpc-next_44x_sam440ep_defconfig_powerpc-gcc4.6 # Build took: 0:00:58.676452

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