On Fri, Aug 28, 2020 at 05:11:25PM +1000, Herbert Xu wrote: > I keep getting sparse warnings in crypto such as: >
This patch results in the following compile error when compiling ppc:mpc85xx_defconfig. Error log: In file included from ./include/linux/list.h:9, from ./include/linux/module.h:12, from drivers/dma/fsldma.c:23: drivers/dma/fsldma.h: In function 'fsl_ioread64': ./include/linux/kernel.h:189:37: error: invalid operands to binary & (have 'const u64 *' {aka 'const long long unsigned int *'} and 'unsigned int') 189 | #define lower_32_bits(n) ((u32)((n) & 0xffffffff)) | ^ drivers/dma/fsldma.h:208:17: note: in expansion of macro 'lower_32_bits' 208 | u32 fsl_addr = lower_32_bits(addr); | ^~~~~~~~~~~~~ drivers/dma/fsldma.h: In function 'fsl_ioread64be': ./include/linux/kernel.h:189:37: error: invalid operands to binary & (have 'const u64 *' {aka 'const long long unsigned int *'} and 'unsigned int') 189 | #define lower_32_bits(n) ((u32)((n) & 0xffffffff)) | ^ drivers/dma/fsldma.h:222:17: note: in expansion of macro 'lower_32_bits' 222 | u32 fsl_addr = lower_32_bits(addr); | ^~~~~~~~~~~~~ make[2]: *** [drivers/dma/fsldma.o] Error 1 Bisct log attached. Guenter --- # bad: [4d41ead6ead97c3730bbd186a601a64828668f01] Merge tag 'block-5.9-2020-08-28' of git://git.kernel.dk/linux-block # good: [15bc20c6af4ceee97a1f90b43c0e386643c071b4] Merge tag 'tty-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty git bisect start 'HEAD' '15bc20c6af4c' # good: [5ec06b5c0d259a8c7c4376b121b2f62dfbfe57ef] Merge tag 'drm-fixes-2020-08-28' of git://anongit.freedesktop.org/drm/drm git bisect good 5ec06b5c0d259a8c7c4376b121b2f62dfbfe57ef # bad: [326e311b849426a95cac0149406efb2bbd13fa65] Merge tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm git bisect bad 326e311b849426a95cac0149406efb2bbd13fa65 # good: [e30942859030199dab5ad73f95faac226133c639] Merge tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs git bisect good e30942859030199dab5ad73f95faac226133c639 # bad: [96d454cd2c1668010406ea4c28ab915bcbb747f4] Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux git bisect bad 96d454cd2c1668010406ea4c28ab915bcbb747f4 # good: [e9ee186bb735bfc17fa81dbc9aebf268aee5b41e] KVM: arm64: Add kvm_extable for vaxorcism code git bisect good e9ee186bb735bfc17fa81dbc9aebf268aee5b41e # good: [71a7f8cb1ca4ca7214a700b1243626759b6c11d4] KVM: arm64: Set HCR_EL2.PTW to prevent AT taking synchronous exception git bisect good 71a7f8cb1ca4ca7214a700b1243626759b6c11d4 # bad: [ef91bb196b0db1013ef8705367bc2d7944ef696b] kernel.h: Silence sparse warning in lower_32_bits git bisect bad ef91bb196b0db1013ef8705367bc2d7944ef696b # first bad commit: [ef91bb196b0db1013ef8705367bc2d7944ef696b] kernel.h: Silence sparse warning in lower_32_bits