linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2019-05-30	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	Thomas Gleixner	1	-5/+1
	Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-26	selftests/powerpc: Fix ptrace tm failure	Breno Leitao	1	-2/+2
	Test ptrace-tm-spd-gpr fails on current kernel (4.19) due to a segmentation fault that happens on the child process prior to setting cptr[2] = 1. This causes the parent process to wait forever at 'while (!pptr[2])' and the test to be killed by the test harness framework by timeout, thus, failing. The segmentation fault happens because of a inline assembly being generated as: 0x10000355c <tm_spd_gpr+492> lfs f0, 0(0) This is reading memory position 0x0 and causing the segmentation fault. This code is being generated by ASM_LOAD_FPR_SINGLE_PRECISION(flt_4), where flt_4 is passed to the inline assembly block as: [flt_4] "r" (&d) Since the inline assembly 'r' constraint means any GPR, gpr0 is being chosen, thus causing this issue when issuing a Load Floating-Point Single instruction. This patch simply changes the constraint to 'b', which specify that this register will be used as base, and r0 is not allowed to be used, avoiding this issue. Other than that, removing flt_2 register from the input operands, since it is not used by the inline assembly code at all. Cc: stable@vger.kernel.org Signed-off-by: Breno Leitao <leitao@debian.org> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-17	selftests/powerpc: Add ptrace tests for GPR/FPR registers in suspended TM	Anshuman Khandual	1	-0/+169
	This patch adds ptrace interface test for GPR/FPR registers inside suspended TM context. Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>