* [gerg-m68knommu:dt 2/22] drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?
@ 2026-08-13 19:54 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-08-13 19:54 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp
::::::
:::::: Manual check reason: "low confidence static check warning: drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-m68k@lists.linux-m68k.org
CC: uclinux-dev@uclinux.org
TO: Greg Ungerer <gerg@linux-m68k.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git dt
head: 76a231d031905d3bbc982b9a3d92619ce917e306
commit: 191a962ceb628c9ba07bb6d5687820afaa2823fb [2/22] serial: mcf: convert to use proper platform resources
:::::: branch date: 3 days ago
:::::: commit date: 3 days ago
config: m68k-randconfig-r122-20260813 (https://download.01.org/0day-ci/archive/20260814/202608140358.D3HT9v2t-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 15.2.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260814/202608140358.D3HT9v2t-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202608140358.D3HT9v2t-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/tty/serial/mcf.c:585:37: sparse: signed value source
vim +586 drivers/tty/serial/mcf.c
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 570
9671f09921d93e drivers/tty/serial/mcf.c Bill Pemberton 2012-11-19 571 static int mcf_probe(struct platform_device *pdev)
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 572 {
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 573 struct uart_port *port;
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 574 struct resource *res;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 575
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 576 if (pdev->id >= MCF_MAXPORTS)
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 577 return -ENODEV;
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 578 port = &mcf_ports[pdev->id].port;
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 579
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 580 port->membase = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 581 if (IS_ERR(port->membase))
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 582 return PTR_ERR(port->membase);
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 583 port->mapbase = res->start;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 584
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 585 port->irq = platform_get_irq(pdev, 0);
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 @586 if (port->irq < 0)
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 587 return port->irq;
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 588
191a962ceb628c drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 589 port->line = pdev->id;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 590 port->type = PORT_MCF;
201d8975ae5ada drivers/tty/serial/mcf.c Greg Ungerer 2015-01-08 591 port->dev = &pdev->dev;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 592 port->iotype = SERIAL_IO_MEM;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 593 port->uartclk = MCF_BUSCLK;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 594 port->ops = &mcf_uart_ops;
5fda7a0e715c32 drivers/tty/serial/mcf.c Peter Hurley 2014-06-16 595 port->flags = UPF_BOOT_AUTOCONF;
2fc0184dae7be5 drivers/tty/serial/mcf.c Ricardo Ribalda 2014-11-06 596 port->rs485_config = mcf_config_rs485;
0139da50dc53f0 drivers/tty/serial/mcf.c Ilpo Järvinen 2022-07-04 597 port->rs485_supported = mcf_rs485_supported;
4be87603b6dc9e drivers/tty/serial/mcf.c Angelo Dureghello 2020-10-02 598 port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_MCF_CONSOLE);
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 599
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 600 uart_add_one_port(&mcf_driver, port);
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 601 return 0;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 602 }
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 603
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* [gerg-m68knommu:dt 2/22] drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?
@ 2026-09-26 15:19 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-09-26 15:19 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp
::::::
:::::: Manual check reason: "low confidence static check warning: drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-m68k@lists.linux-m68k.org
CC: uclinux-dev@uclinux.org
TO: Greg Ungerer <gerg@linux-m68k.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git dt
head: eafb2e6e489faacf921ddea1e9232e555f7abca6
commit: 9bf66b595d3a0930594f37daca3e4518227bcc6e [2/22] serial: mcf: convert to use proper platform resources
:::::: branch date: 3 days ago
:::::: commit date: 3 days ago
config: m68k-randconfig-r1305-20260926 (https://download.01.org/0day-ci/archive/20260926/202609262305.AW66PR73-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 14.3.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260926/202609262305.AW66PR73-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202609262305.AW66PR73-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/tty/serial/mcf.c:585:37: sparse: signed value source
vim +586 drivers/tty/serial/mcf.c
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 570
9671f09921d93e drivers/tty/serial/mcf.c Bill Pemberton 2012-11-19 571 static int mcf_probe(struct platform_device *pdev)
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 572 {
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 573 struct uart_port *port;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 574 struct resource *res;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 575
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 576 if (pdev->id >= MCF_MAXPORTS)
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 577 return -ENODEV;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 578 port = &mcf_ports[pdev->id].port;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 579
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 580 port->membase = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 581 if (IS_ERR(port->membase))
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 582 return PTR_ERR(port->membase);
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 583 port->mapbase = res->start;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 584
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 585 port->irq = platform_get_irq(pdev, 0);
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 @586 if (port->irq < 0)
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 587 return port->irq;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 588
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 589 port->line = pdev->id;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 590 port->type = PORT_MCF;
201d8975ae5ada drivers/tty/serial/mcf.c Greg Ungerer 2015-01-08 591 port->dev = &pdev->dev;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 592 port->iotype = SERIAL_IO_MEM;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 593 port->uartclk = MCF_BUSCLK;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 594 port->ops = &mcf_uart_ops;
5fda7a0e715c32 drivers/tty/serial/mcf.c Peter Hurley 2014-06-16 595 port->flags = UPF_BOOT_AUTOCONF;
2fc0184dae7be5 drivers/tty/serial/mcf.c Ricardo Ribalda 2014-11-06 596 port->rs485_config = mcf_config_rs485;
0139da50dc53f0 drivers/tty/serial/mcf.c Ilpo Järvinen 2022-07-04 597 port->rs485_supported = mcf_rs485_supported;
4be87603b6dc9e drivers/tty/serial/mcf.c Angelo Dureghello 2020-10-02 598 port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_MCF_CONSOLE);
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 599
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 600 uart_add_one_port(&mcf_driver, port);
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 601 return 0;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 602 }
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 603
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
* [gerg-m68knommu:dt 2/22] drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?
@ 2026-09-27 13:03 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-09-27 13:03 UTC (permalink / raw)
To: Greg Ungerer; +Cc: oe-kbuild-all, linux-m68k, uclinux-dev
tree: https://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu.git dt
head: eafb2e6e489faacf921ddea1e9232e555f7abca6
commit: 9bf66b595d3a0930594f37daca3e4518227bcc6e [2/22] serial: mcf: convert to use proper platform resources
config: m68k-randconfig-r1305-20260926 (https://download.01.org/0day-ci/archive/20260926/202609262305.AW66PR73-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 14.3.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260926/202609262305.AW66PR73-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202609262305.AW66PR73-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/tty/serial/mcf.c:586:25: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/tty/serial/mcf.c:585:37: sparse: signed value source
vim +586 drivers/tty/serial/mcf.c
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 570
9671f09921d93e drivers/tty/serial/mcf.c Bill Pemberton 2012-11-19 571 static int mcf_probe(struct platform_device *pdev)
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 572 {
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 573 struct uart_port *port;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 574 struct resource *res;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 575
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 576 if (pdev->id >= MCF_MAXPORTS)
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 577 return -ENODEV;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 578 port = &mcf_ports[pdev->id].port;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 579
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 580 port->membase = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 581 if (IS_ERR(port->membase))
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 582 return PTR_ERR(port->membase);
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 583 port->mapbase = res->start;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 584
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 585 port->irq = platform_get_irq(pdev, 0);
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 @586 if (port->irq < 0)
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 587 return port->irq;
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 588
9bf66b595d3a09 drivers/tty/serial/mcf.c Greg Ungerer 2025-01-15 589 port->line = pdev->id;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 590 port->type = PORT_MCF;
201d8975ae5ada drivers/tty/serial/mcf.c Greg Ungerer 2015-01-08 591 port->dev = &pdev->dev;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 592 port->iotype = SERIAL_IO_MEM;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 593 port->uartclk = MCF_BUSCLK;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 594 port->ops = &mcf_uart_ops;
5fda7a0e715c32 drivers/tty/serial/mcf.c Peter Hurley 2014-06-16 595 port->flags = UPF_BOOT_AUTOCONF;
2fc0184dae7be5 drivers/tty/serial/mcf.c Ricardo Ribalda 2014-11-06 596 port->rs485_config = mcf_config_rs485;
0139da50dc53f0 drivers/tty/serial/mcf.c Ilpo Järvinen 2022-07-04 597 port->rs485_supported = mcf_rs485_supported;
4be87603b6dc9e drivers/tty/serial/mcf.c Angelo Dureghello 2020-10-02 598 port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_MCF_CONSOLE);
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 599
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 600 uart_add_one_port(&mcf_driver, port);
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 601 return 0;
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 602 }
49aa49bfd40d71 drivers/serial/mcf.c Greg Ungerer 2007-10-23 603
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2026-09-27 13:03 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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