Date: Sat, 30 Sep 2023 18:31:26 GMT From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 8a77bc5e1be1 - main - makefs/zfs: fix build with gcc 12 after b5a2bf512dbe Message-ID: <202309301831.38UIVQrc007239@gitrepo.freebsd.org>
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The branch main has been updated by dim: URL: https://cgit.FreeBSD.org/src/commit/?id=8a77bc5e1be1a999f2f8d9df0c01fe01fb5a0787 commit 8a77bc5e1be1a999f2f8d9df0c01fe01fb5a0787 Author: Dimitry Andric <dim@FreeBSD.org> AuthorDate: 2023-09-30 18:27:20 +0000 Commit: Dimitry Andric <dim@FreeBSD.org> CommitDate: 2023-09-30 18:27:20 +0000 makefs/zfs: fix build with gcc 12 after b5a2bf512dbe Due to integer promotion rules, dn_nlevels (uint8_t) gets promoted to a plain int, resulting in -Werror warnings with gcc 12: In file included from /workspace/src/usr.sbin/makefs/zfs.c:35: /workspace/src/usr.sbin/makefs/zfs.c: In function '_dnode_cursor_flush': /workspace/src/usr.sbin/makefs/zfs.c:684:23: error: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Werror=sign-compare] 684 | assert(levels <= c->dnode->dn_nlevels - 1); | ^~ /workspace/src/usr.sbin/makefs/zfs.c:691:27: error: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Werror=sign-compare] 691 | if (level == c->dnode->dn_nlevels - 1) { | ^~ /workspace/src/usr.sbin/makefs/zfs.c: In function 'dnode_cursor_next': /workspace/src/usr.sbin/makefs/zfs.c:739:41: error: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Werror=sign-compare] 739 | for (levels = 0; levels < c->dnode->dn_nlevels - 1; levels++) { | ^ Fix it by subtracting 1U instead of 1. Fixes: b5a2bf512dbe MFC after: 3 days --- usr.sbin/makefs/zfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/usr.sbin/makefs/zfs.c b/usr.sbin/makefs/zfs.c index db302fe1e760..b16a48564f04 100644 --- a/usr.sbin/makefs/zfs.c +++ b/usr.sbin/makefs/zfs.c @@ -681,14 +681,14 @@ _dnode_cursor_flush(zfs_opt_t *zfs, struct dnode_cursor *c, unsigned int levels) off_t blkid, blksz, loc; assert(levels > 0); - assert(levels <= c->dnode->dn_nlevels - 1); + assert(levels <= c->dnode->dn_nlevels - 1U); blksz = MAXBLOCKSIZE; blkid = (c->dataoff / c->datablksz) / BLKPTR_PER_INDIR; for (unsigned int level = 1; level <= levels; level++) { buf = c->inddir[level - 1]; - if (level == c->dnode->dn_nlevels - 1) { + if (level == c->dnode->dn_nlevels - 1U) { pbp = &c->dnode->dn_blkptr[0]; } else { uint64_t iblkid; @@ -736,7 +736,7 @@ dnode_cursor_next(zfs_opt_t *zfs, struct dnode_cursor *c, off_t off) /* Do we need to flush any full indirect blocks? */ if (off > 0) { blkid = off / c->datablksz; - for (levels = 0; levels < c->dnode->dn_nlevels - 1; levels++) { + for (levels = 0; levels < c->dnode->dn_nlevels - 1U; levels++) { if (blkid % BLKPTR_PER_INDIR != 0) break; blkid /= BLKPTR_PER_INDIR;
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