linux/arch
Arve Hjønnevåg d2a4ecd566 ARM: etm: Don't try to clear the buffer full status after reading the buffer
If the write address was at the end of the buffer, toggling the trace
capture bit would set the RAM-full status instead of clearing it, and
if any of the stop bits in the formatter is set toggling the trace
capture bit may not do anything.

Instead use the read position to find out if the data has already
been returned.

This also fixes the read function so it works when the trace buffer is
larger than the buffer passed in from user space. The old version
would reset the trace buffer pointers after every read, so the second
call to read would always return 0.

Change-Id: I75256abe2556adfd66fd5963e46f9e84ae4645e1
Signed-off-by: Arve Hjønnevåg <arve@android.com>
2013-07-01 13:40:32 -07:00
..
alpha Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
arc ARC: lazy dcache flush broke gdb in non-aliasing configs 2013-05-25 14:15:55 +05:30
arm ARM: etm: Don't try to clear the buffer full status after reading the buffer 2013-07-01 13:40:32 -07:00
arm64 perf: arm64: Record the user-mode PC in the call chain. 2013-06-20 10:16:39 +01:00
avr32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 2013-05-22 18:06:57 -07:00
blackfin blackfin updates for Linux 3.10 2013-05-10 07:21:16 -07:00
c6x dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
cris - Lots of cleanups from Artem, including deletion of some obsolete drivers 2013-05-09 10:15:46 -07:00
frv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
h8300 We get rid of the general module prefix confusion with a binary config option, 2013-05-05 10:58:06 -07:00
hexagon Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
ia64 [IA64] Fix include dependency in asm/irqflags.h 2013-06-17 13:39:52 -07:00
m32r Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
m68k Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2013-06-08 11:50:17 -07:00
metag metag: fix mm/hugetlb.c build breakage 2013-06-19 06:23:34 -10:00
microblaze microblaze: Use static inline functions in cacheflush.h 2013-06-03 11:33:23 +02:00
mips Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-06-12 11:48:14 -07:00
mn10300 mn10300: Use early_param() to parse "mem=" parameter 2013-06-28 16:53:03 +01:00
openrisc Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
parisc parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm 2013-06-18 20:29:10 +02:00
powerpc powerpc/eeh: Fix fetching bus for single-dev-PE 2013-06-30 14:08:34 +10:00
s390 s390/ipl: Fix FCP WWPN and LUN format strings for read 2013-06-24 11:16:34 +02:00
score score: remove redundant kcore_list entries 2013-05-25 10:27:27 -07:00
sh Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
sparc sparc: tsb must be flushed before tlb 2013-06-19 02:10:30 -07:00
tile tilepro: work around module link error with gcc 4.7 2013-06-15 16:47:47 -04:00
um mconsole: we'd better initialize pos before passing it to vfs_read()... 2013-06-19 12:37:57 +04:00
unicore32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-05-10 09:21:05 -07:00
x86 Move x86_64 idle notifiers to generic 2013-07-01 13:40:30 -07:00
xtensa Xtensa patchset for v3.10-rc1 2013-05-09 14:38:16 -07:00
.gitignore
Kconfig Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-05-15 14:04:00 -07:00