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Date: Thu, 14 Oct 2021 10:21:21 +0800
From: kernel test robot <lkp@...el.com>
To: "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
"Gustavo A. R. Silva" <gustavo@...eddedor.com>,
LKML <linux-kernel@...r.kernel.org>,
Nathan Chancellor <nathan@...nel.org>,
Kees Cook <keescook@...omium.org>
Subject: [gustavoars:for-next/kspp 4/6]
drivers/video/fbdev/omap/omapfb_main.c:1558:2: warning: unannotated
fall-through between switch labels
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git for-next/kspp
head: 312cee4f1ab71ad56dde7c45fc3943341e712536
commit: 9bed5200e04d2a3dcd3a420d249e947eac7ec7c1 [4/6] Makefile: Enable -Wimplicit-fallthrough for Clang
config: arm-randconfig-r023-20211013 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6c76d0101193aa4eb891a6954ff047eda2f9cf71)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git/commit/?id=9bed5200e04d2a3dcd3a420d249e947eac7ec7c1
git remote add gustavoars https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git
git fetch --no-tags gustavoars for-next/kspp
git checkout 9bed5200e04d2a3dcd3a420d249e947eac7ec7c1
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
>> drivers/video/fbdev/omap/omapfb_main.c:1558:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
case 0:
^
drivers/video/fbdev/omap/omapfb_main.c:1558:2: note: insert 'break;' to avoid fall-through
case 0:
^
break;
1 warning generated.
vim +1558 drivers/video/fbdev/omap/omapfb_main.c
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1521
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1522 /*
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1523 * Free driver resources. Can be called to rollback an aborted initialization
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1524 * sequence.
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1525 */
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1526 static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1527 {
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1528 int i;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1529
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1530 switch (state) {
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1531 case OMAPFB_ACTIVE:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1532 for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1533 unregister_framebuffer(fbdev->fb_info[i]);
df561f6688fef7 drivers/video/fbdev/omap/omapfb_main.c Gustavo A. R. Silva 2020-08-23 1534 fallthrough;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1535 case 7:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1536 omapfb_unregister_sysfs(fbdev);
df561f6688fef7 drivers/video/fbdev/omap/omapfb_main.c Gustavo A. R. Silva 2020-08-23 1537 fallthrough;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1538 case 6:
561eb9d09a93d7 drivers/video/fbdev/omap/omapfb_main.c Lars-Peter Clausen 2017-01-30 1539 if (fbdev->panel->disable)
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1540 fbdev->panel->disable(fbdev->panel);
df561f6688fef7 drivers/video/fbdev/omap/omapfb_main.c Gustavo A. R. Silva 2020-08-23 1541 fallthrough;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1542 case 5:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1543 omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
df561f6688fef7 drivers/video/fbdev/omap/omapfb_main.c Gustavo A. R. Silva 2020-08-23 1544 fallthrough;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1545 case 4:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1546 planes_cleanup(fbdev);
df561f6688fef7 drivers/video/fbdev/omap/omapfb_main.c Gustavo A. R. Silva 2020-08-23 1547 fallthrough;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1548 case 3:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1549 ctrl_cleanup(fbdev);
df561f6688fef7 drivers/video/fbdev/omap/omapfb_main.c Gustavo A. R. Silva 2020-08-23 1550 fallthrough;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1551 case 2:
561eb9d09a93d7 drivers/video/fbdev/omap/omapfb_main.c Lars-Peter Clausen 2017-01-30 1552 if (fbdev->panel->cleanup)
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1553 fbdev->panel->cleanup(fbdev->panel);
df561f6688fef7 drivers/video/fbdev/omap/omapfb_main.c Gustavo A. R. Silva 2020-08-23 1554 fallthrough;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1555 case 1:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1556 dev_set_drvdata(fbdev->dev, NULL);
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1557 kfree(fbdev);
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 @1558 case 0:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1559 /* nothing to free */
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1560 break;
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1561 default:
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1562 BUG();
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1563 }
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1564 }
8b08cf2b64f5a6 drivers/video/omap/omapfb_main.c Imre Deak 2007-07-17 1565
:::::: The code at line 1558 was first introduced by commit
:::::: 8b08cf2b64f5a60594b07795b2ad518c6d044566 OMAP: add TI OMAP framebuffer driver
:::::: TO: Imre Deak <imre.deak@...idboot.com>
:::::: CC: Linus Torvalds <torvalds@...dy.linux-foundation.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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