haraldwolff/qemu-patch-raspberry4
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qemu-patch-raspberry4/hw/char
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Stefan Hajnoczi bd2a88840e Convert ffs() != 0 callers to ctz32() 
There are a number of ffs(3) callers that do roughly:

  bit = ffs(val);
  if (bit) {
      do_something(bit - 1);
  }

This pattern can be converted to ctz32() like this:

  zeroes = ctz32(val);
  if (zeroes != 32) {
      do_something(zeroes);
  }

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1427124571-28598-6-git-send-email-stefanha@redhat.com
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-04-28 15:36:08 +02:00
..
cadence_uart.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
debugcon.c qdev: Remove hex8/32/64 property types 2014-02-14 21:12:04 +01:00
digic-uart.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
escc.c savevm: Remove all the unneeded version_minimum_id_old (ppc) 2014-06-16 04:55:26 +02:00
etraxfs_ser.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
exynos4210_uart.c savevm: Remove all the unneeded version_minimum_id_old (arm) 2014-05-13 16:09:35 +01:00
grlib_apbuart.c grlib_apbuart: QOM cast cleanup 2013-07-29 21:06:27 +02:00
imx_serial.c savevm: Remove all the unneeded version_minimum_id_old (arm) 2014-05-13 16:09:35 +01:00
ipoctal232.c savevm: Remove all the unneeded version_minimum_id_old (rest) 2014-05-14 15:24:51 +02:00
lm32_juart.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
lm32_uart.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
Makefile.objs stm32f2xx_USART: Add the stm32f2xx USART Controller 2015-03-11 13:21:05 +00:00
mcf_uart.c memory: add owner argument to initialization functions 2013-07-04 17:42:44 +02:00
milkymist-uart.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
omap_uart.c omap: Fix warnings from Sparse 2015-03-19 11:11:55 +03:00
parallel.c parallel: parallel_hds_isa_init() shouldn't fail 2015-02-24 00:19:06 +01:00
pl011.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
sclpconsole-lm.c s390x/sclpconsole-lm: Fix hanging SCLP line mode console 2014-11-05 16:35:56 +01:00
sclpconsole.c s390x/sclpconsole: Avoid hanging SCLP ASCII console 2014-11-05 16:35:56 +01:00
serial-isa.c serial: serial_hds_isa_init() shouldn't fail 2015-02-24 00:19:06 +01:00
serial-pci.c serial-pci: Convert to realize 2015-02-26 12:42:17 +01:00
serial.c error: Use error_report_err() where appropriate 2015-02-18 10:51:09 +01:00
sh_serial.c sh4: Fix serial line access for Linux kernels later than 3.2 2013-10-02 22:55:28 +04:00
spapr_vty.c spapr_vio: Convert to realize() 2015-03-09 15:00:07 +01:00
stm32f2xx_usart.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00
virtio-console.c serial: poll the serial console with G_IO_HUP 2014-06-30 15:04:34 +02:00
virtio-serial-bus.c Convert ffs() != 0 callers to ctz32() 2015-04-28 15:36:08 +02:00
xen_console.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
xilinx_uartlite.c sysbus: Make devices picking up backends unavailable with -device 2015-04-02 15:30:44 +02:00