kernel/arch/hexagon/include/asm/bitops.h, branch linux-5.1.y

fls: change parameter to unsigned int

2019-01-04T21:13:46Z

When testing in userspace, UBSAN pointed out that shifting into the sign bit is undefined behaviour. It doesn't really make sense to ask for the highest set bit of a negative value, so just turn the argument type into an unsigned int. Some architectures (eg ppc) already had it declared as an unsigned int, so I don't expect too many problems. Link: http://lkml.kernel.org/r/20181105221117.31828-1-willy@infradead.org Signed-off-by: Matthew Wilcox Acked-by: Thomas Gleixner Acked-by: Geert Uytterhoeven Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hexagon: modify ffs() and fls() to return int

2018-09-11T00:42:15Z

Building drivers/mtd/nand/raw/nandsim.c on arch/hexagon/ produces a printk format build warning. This is due to hexagon's ffs() being coded as returning long instead of int. Fix the printk format warning by changing all of hexagon's ffs() and fls() functions to return int instead of long. The variables that they return are already int instead of long. This return type matches the return type in . ../drivers/mtd/nand/raw/nandsim.c: In function 'init_nandsim': ../drivers/mtd/nand/raw/nandsim.c:760:2: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'long int' [-Wformat] There are no ffs() or fls() allmodconfig build errors after making this change. Signed-off-by: Randy Dunlap Cc: Richard Kuo Cc: linux-hexagon@vger.kernel.org Cc: Geert Uytterhoeven Patch-mainline: linux-kernel @ 07/22/2018, 16:03 Signed-off-by: Richard Kuo

arch,hexagon: Convert smp_mb__*()

2014-04-18T12:20:35Z

Hexagon uses asm-gemeric/barrier.h and its smp_mb() is barrier(). Therefore we can use the default implementation that uses smp_mb(). Signed-off-by: Peter Zijlstra Acked-by: Paul E. McKenney Link: http://lkml.kernel.org/n/tip-87irqrrbgizeojjfdqhypud3@git.kernel.org Cc: Linus Torvalds Cc: Richard Kuo Cc: Vineet Gupta Cc: linux-hexagon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar

Hexagon: Copyright marking changes

2012-10-18T22:07:21Z

Code Aurora Forum (CAF) is becoming a part of Linux Foundation Labs. Signed-off-by: Richard Kuo

Disintegrate asm/system.h for Hexagon

2012-03-28T17:30:02Z

Disintegrate asm/system.h for Hexagon. Not compiled. Signed-off-by: David Howells Acked-by: Richard Kuo cc: linux-hexagon@vger.kernel.org

Hexagon: Add bitops support

2011-11-01T14:34:18Z

Signed-off-by: Richard Kuo Acked-by: Arnd Bergmann Signed-off-by: Linus Torvalds