diff options
| author | Cyril Bur <cyril.bur@au1.ibm.com> | 2017-04-20 15:39:44 +1000 |
|---|---|---|
| committer | Michael Neuling <mikey@neuling.org> | 2017-04-20 15:47:29 +1000 |
| commit | 86d4bcbdcbf91717a62797494be40a18d1e43d6d (patch) | |
| tree | d2bd4cbaec4ec88cb1955037b397d13c27be5451 /libflash/libffs.c | |
| parent | 6e7a024d3afb28dcb951b8eb689a0c79964b537e (diff) | |
| download | talos-skiboot-86d4bcbdcbf91717a62797494be40a18d1e43d6d.tar.gz talos-skiboot-86d4bcbdcbf91717a62797494be40a18d1e43d6d.zip | |
libflash/file: Only use 64bit MTD erase ioctl() when needed
We recently made MTD 64 bit safe in e5720d3fe94 which now requires the
64 bit MTD erase ioctl. Unfortunately this ioctl is not present in
older kernels used by some BMC vendors that use pflash.
This patch addresses this by only using the 64bit version of the erase
ioctl() if the parameters exceed 32bit in size.
If an erase requires the 64bit ioctl() on a kernel which does not
support it, the code will still attempt it. There is no way of knowing
beforehand if the kernel supports it. The ioctl() will fail and an error
will be returned from from the function.
Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Diffstat (limited to 'libflash/libffs.c')
0 files changed, 0 insertions, 0 deletions
