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| author |   Paul Burton <paul.burton@mips.com> | 2018-07-16 08:26:36 -0700 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2018-07-17 10:32:08 -0700 |
| commit | cd87668d601f622e0ebcfea4f78d116d5f572f4d (patch) | |
| tree | 8d182e92d044ae2de3eefacc11e790fc438b1e54 /fs/binfmt_elf.c | |
| parent | mips: unify prom_putchar() declarations (diff) | |
| download | linux-dev-cd87668d601f622e0ebcfea4f78d116d5f572f4d.tar.xz linux-dev-cd87668d601f622e0ebcfea4f78d116d5f572f4d.zip | |
MIPS: loongson64: cs5536: Fix PCI_OHCI_INT_REG reads
The PCI_OHCI_INT_REG case in pci_ohci_read_reg() contains the following
if statement:
if ((lo & 0x00000f00) == CS5536_USB_INTR)
CS5536_USB_INTR expands to the constant 11, which gives us the following
condition which can never evaluate true:
if ((lo & 0xf00) == 11)
At least when using GCC 8.1.0 this falls foul of the tautoligcal-compare
warning, and since the code is built with the -Werror flag the build
fails.
Fix this by shifting lo right by 8 bits in order to match the
corresponding PCI_OHCI_INT_REG case in pci_ohci_write_reg().
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19861/
Cc: Huacai Chen <chenhc@lemote.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Diffstat (limited to 'fs/binfmt_elf.c')
0 files changed, 0 insertions, 0 deletions