Thomas Gleixner 4facb95b7a x86/entry: Unbreak 32bit fast syscall ... Andy reported that the syscall treacing for 32bit fast syscall fails: # ./tools/testing/selftests/x86/ptrace_syscall_32 ... [RUN] SYSEMU [FAIL] Initial args are wrong (nr=224, args=10 11 12 13 14 4289172732) ... [RUN] SYSCALL [FAIL] Initial args are wrong (nr=29, args=0 0 0 0 0 4289172732) The eason is that the conversion to generic entry code moved the retrieval of the sixth argument (EBP) after the point where the syscall entry work runs, i.e. ptrace, seccomp, audit... Unbreak it by providing a split up version of syscall_enter_from_user_mode(). - syscall_enter_from_user_mode_prepare() establishes state and enables interrupts - syscall_enter_from_user_mode_work() runs the entry work Replace the call to syscall_enter_from_user_mode() in the 32bit fast syscall C-entry with the split functions and stick the EBP retrieval between them. Fixes: 27d6b4d14f ("x86/entry: Use generic syscall entry function") Reported-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/87k0xdjbtt.fsf@nanos.tec.linutronix.de		2020-09-04 15:50:14 +02:00
..
alpha	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
arc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
arm	A set of fixes for lockdep, tracing and RCU:	2020-08-30 11:43:50 -07:00
arm64	MMC host:	2020-08-31 11:22:57 -07:00
c6x	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
csky	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
h8300	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
hexagon	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
ia64	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
m68k	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
microblaze	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
mips	A set of fixes for lockdep, tracing and RCU:	2020-08-30 11:43:50 -07:00
nds32	A set of fixes for lockdep, tracing and RCU:	2020-08-30 11:43:50 -07:00
nios2	mm/nios2: use general page fault accounting	2020-08-12 10:58:03 -07:00
openrisc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
parisc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
powerpc	A set of fixes for lockdep, tracing and RCU:	2020-08-30 11:43:50 -07:00
riscv	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
s390	A set of fixes for lockdep, tracing and RCU:	2020-08-30 11:43:50 -07:00
sh	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
sparc	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
um	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
x86	x86/entry: Unbreak 32bit fast syscall	2020-09-04 15:50:14 +02:00
xtensa	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
.gitignore
Kconfig	A set oftimekeeping/VDSO updates:	2020-08-14 14:26:08 -07:00