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| author | Maciej W. Rozycki <[email protected]> | 2018-05-16 15:39:58 +0000 |
|---|---|---|
| committer | James Hogan <[email protected]> | 2018-05-24 13:03:14 +0000 |
| commit | c7e814628df65f424fe197dde73bfc67e4a244d7 (patch) | |
| tree | 50b12208b6edd6f5953348eee071493e7cfe5e30 /lib/bitmap.c | |
| parent | MIPS: prctl: Disallow FRE without FR with PR_SET_FP_MODE requests (diff) | |
| download | kernel-c7e814628df65f424fe197dde73bfc67e4a244d7.tar.gz kernel-c7e814628df65f424fe197dde73bfc67e4a244d7.zip | |
MIPS: ptrace: Fix PTRACE_PEEKUSR requests for 64-bit FGRs
Use 64-bit accesses for 64-bit floating-point general registers with
PTRACE_PEEKUSR, removing the truncation of their upper halves in the
FR=1 mode, caused by commit bbd426f542cb ("MIPS: Simplify FP context
access"), which inadvertently switched them to using 32-bit accesses.
The PTRACE_POKEUSR side is fine as it's never been broken and continues
using 64-bit accesses.
Fixes: bbd426f542cb ("MIPS: Simplify FP context access")
Signed-off-by: Maciej W. Rozycki <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: [email protected]
Cc: <[email protected]> # 3.15+
Patchwork: https://patchwork.linux-mips.org/patch/19334/
Signed-off-by: James Hogan <[email protected]>
Diffstat (limited to 'lib/bitmap.c')
0 files changed, 0 insertions, 0 deletions