CC: kbuild-...@lists.01.org TO: Arnd Bergmann <a...@arndb.de> CC: Krzysztof Kozlowski <k...@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7ce53e3a447bced7b85ed181c4d027e93c062e07 commit: 71b9114d2c13a648fbe6523dd859e611c316ad90 [1952/6654] ARM: s3c: move into a common directory :::::: branch date: 26 hours ago :::::: commit date: 3 weeks ago compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> cppcheck warnings: (new ones prefixed by >>) >> arch/arm/mach-s3c/irq-s3c24xx.c:399:14: warning: Shifting signed 32-bit >> value by 31 bits is undefined behaviour. See condition at line 396. >> [shiftTooManyBitsSigned] intmod = 1 << offs; ^ arch/arm/mach-s3c/irq-s3c24xx.c:396:12: note: Assuming that condition 'offs>31' is not redundant if (offs > 31) ^ arch/arm/mach-s3c/irq-s3c24xx.c:399:14: note: Shift intmod = 1 << offs; ^ # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=71b9114d2c13a648fbe6523dd859e611c316ad90 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 71b9114d2c13a648fbe6523dd859e611c316ad90 vim +399 arch/arm/mach-s3c/irq-s3c24xx.c 17453dd2e7df20 arch/arm/mach-s3c24xx/irq.c Heiko Stuebner 2013-03-07 374 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 375 #ifdef CONFIG_FIQ 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 376 /** 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 377 * s3c24xx_set_fiq - set the FIQ routing 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 378 * @irq: IRQ number to route to FIQ on processor. cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 379 * @ack_ptr: pointer to a location for storing the bit mask 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 380 * @on: Whether to route @irq to the FIQ, or to remove the FIQ routing. 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 381 * 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 382 * Change the state of the IRQ to FIQ routing depending on @irq and @on. If 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 383 * @on is true, the @irq is checked to see if it can be routed and the 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 384 * interrupt controller updated to route the IRQ. If @on is false, the FIQ 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 385 * routing is cleared, regardless of which @irq is specified. cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 386 * cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 387 * returns the mask value for the register. 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 388 */ cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 389 int s3c24xx_set_fiq(unsigned int irq, u32 *ack_ptr, bool on) 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 390 { 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 391 u32 intmod; 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 392 unsigned offs; 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 393 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 394 if (on) { 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 395 offs = irq - FIQ_START; 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 @396 if (offs > 31) cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 397 return 0; 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 398 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 @399 intmod = 1 << offs; 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 400 } else { 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 401 intmod = 0; 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 402 } 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 403 cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 404 if (ack_ptr) cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 405 *ack_ptr = intmod; 353332855eef20 drivers/irqchip/irq-s3c24xx.c Ben Dooks 2016-06-21 406 writel_relaxed(intmod, S3C2410_INTMOD); cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 407 cd4bd8f9435ddf arch/arm/mach-s3c24xx/irq-s3c24xx.c Arnd Bergmann 2020-08-06 408 return intmod; 229fd8ffba57df arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-08-03 409 } 0f13c8248040d6 arch/arm/plat-s3c24xx/irq.c Ben Dooks 2009-12-07 410 :::::: The code at line 399 was first introduced by commit :::::: 229fd8ffba57dfaea59078b9144371369ffdb0a3 ARM: S3C24XX: Add FIQ IRQ routing support :::::: TO: Ben Dooks <b...@simtec.co.uk> :::::: CC: Ben Dooks <ben-li...@fluff.org> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
