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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 22:48:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 22:48:10 +0300
commitb4b52b881cf08e13d110eac811d4becc0775abbf (patch)
tree16344be594148013c239d07aa1a1b66f3c8eb648 /fs/adfs
parent2d60d96b6f00de90ec2bc60eb4cdcc46e1e1f161 (diff)
parentccaa75187a5f1d8131b424160eb90a8a94be287f (diff)
downloadlinux-b4b52b881cf08e13d110eac811d4becc0775abbf.tar.xz
Merge tag 'Wimplicit-fallthrough-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull Wimplicit-fallthrough updates from Gustavo A. R. Silva: "Mark switch cases where we are expecting to fall through. This is part of the ongoing efforts to enable -Wimplicit-fallthrough. Most of them have been baking in linux-next for a whole development cycle. And with Stephen Rothwell's help, we've had linux-next nag-emails going out for newly introduced code that triggers -Wimplicit-fallthrough to avoid gaining more of these cases while we work to remove the ones that are already present. We are getting close to completing this work. Currently, there are only 32 of 2311 of these cases left to be addressed in linux-next. I'm auditing every case; I take a look into the code and analyze it in order to determine if I'm dealing with an actual bug or a false positive, as explained here: https://lore.kernel.org/lkml/c2fad584-1705-a5f2-d63c-824e9b96cf50@embeddedor.com/ While working on this, I've found and fixed the several missing break/return bugs, some of them introduced more than 5 years ago. Once this work is finished, we'll be able to universally enable "-Wimplicit-fallthrough" to avoid any of these kinds of bugs from entering the kernel again" * tag 'Wimplicit-fallthrough-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (27 commits) memstick: mark expected switch fall-throughs drm/nouveau/nvkm: mark expected switch fall-throughs NFC: st21nfca: Fix fall-through warnings NFC: pn533: mark expected switch fall-throughs block: Mark expected switch fall-throughs ASN.1: mark expected switch fall-through lib/cmdline.c: mark expected switch fall-throughs lib: zstd: Mark expected switch fall-throughs scsi: sym53c8xx_2: sym_nvram: Mark expected switch fall-through scsi: sym53c8xx_2: sym_hipd: mark expected switch fall-throughs scsi: ppa: mark expected switch fall-through scsi: osst: mark expected switch fall-throughs scsi: lpfc: lpfc_scsi: Mark expected switch fall-throughs scsi: lpfc: lpfc_nvme: Mark expected switch fall-through scsi: lpfc: lpfc_nportdisc: Mark expected switch fall-through scsi: lpfc: lpfc_hbadisc: Mark expected switch fall-throughs scsi: lpfc: lpfc_els: Mark expected switch fall-throughs scsi: lpfc: lpfc_ct: Mark expected switch fall-throughs scsi: imm: mark expected switch fall-throughs scsi: csiostor: csio_wr: mark expected switch fall-through ...
Diffstat (limited to 'fs/adfs')
-rw-r--r--fs/adfs/dir_f.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/adfs/dir_f.c b/fs/adfs/dir_f.c
index 0fbfd0b04ae0..382c9d7ad375 100644
--- a/fs/adfs/dir_f.c
+++ b/fs/adfs/dir_f.c
@@ -24,8 +24,11 @@ static inline unsigned int adfs_readval(unsigned char *p, int len)
switch (len) {
case 4: val |= p[3] << 24;
+ /* fall through */
case 3: val |= p[2] << 16;
+ /* fall through */
case 2: val |= p[1] << 8;
+ /* fall through */
default: val |= p[0];
}
return val;
@@ -35,8 +38,11 @@ static inline void adfs_writeval(unsigned char *p, int len, unsigned int val)
{
switch (len) {
case 4: p[3] = val >> 24;
+ /* fall through */
case 3: p[2] = val >> 16;
+ /* fall through */
case 2: p[1] = val >> 8;
+ /* fall through */
default: p[0] = val;
}
}