10154 zfs: cast between incompatible function types
Review Request #1326 - Created Dec. 21, 2018 and submitted
| Information | |
|---|---|
| Toomas Soome | |
| illumos-gate | |
| 10154 | |
| f115cc1... | |
| Reviewers | |
| general | |
../../common/fs/zfs/vdev_disk.c: In function 'vdev_disk_io_start':
../../common/fs/zfs/vdev_disk.c:795:17: error: cast between incompatible function types from 'void (*)(buf_t *)' {aka 'void (*)(struct buf *)'} to 'int (*)()' [-Werror=cast-function-type]
bp->b_iodone = (int (*)())vdev_disk_io_intr;
^
../../common/fs/zfs/vdev_file.c: In function 'vdev_file_io_start':
../../common/fs/zfs/vdev_file.c:244:17: error: cast between incompatible function types from 'void (*)(buf_t *)' {aka 'void (*)(struct buf *)'} to 'int (*)()' [-Werror=cast-function-type]
bp->b_iodone = (int (*)())vdev_file_io_intr;
^
cc1: all warnings being treated as errors
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The only two places there i saw ((bp->b_iodone))(bp) called, the results were ignored, so perhaps
int (b_iodone)(struct buf ); / function called by iodone /
should become
void (b_iodone)(struct buf ); / function called by iodone */
in buf.h:118The following functions are assigned to this function pointer and either declared to return and int and return (0), or are declared void.
hsfs_iodone, ud_iodone, trans_not_done, log_done, ufs_si_io_done, ufs_iodone,
db_flush_write_cache_done, sd_mapblockaddr_iodone, sd_mapblocksize_iodone,
aio_done, xdb_biodone, dadk_flushdone, qmerge_iodone, dcdflushdone, vd_biodoneThere are two other small signature changes that would need to happen to saviodone and sd_shadow_buf_alloc
It looks like other may have done what you are doing, so I'm ok with it, but I would prefer to see it consistent across the gate.
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