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| author | Arnd Bergmann <arnd@arndb.de> | 2014-06-26 15:44:52 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-07-25 23:17:00 +0200 |
| commit | 0b9e7b741f2bf8103b15bb14d5b4a6f5ee91c59a (patch) | |
| tree | ef0e5781cbc2728f0c1c57bd9d8ee56d5ebee0b3 /drivers/scsi/hpsa.c | |
| parent | hpsa: do not unconditionally copy sense data (diff) | |
| download | linux-0b9e7b741f2bf8103b15bb14d5b4a6f5ee91c59a.tar.xz linux-0b9e7b741f2bf8103b15bb14d5b4a6f5ee91c59a.zip | |
hpsa: fix non-x86 builds
commit 28e134464734 "[SCSI] hpsa: enable unit attention reporting"
turns on unit attention notifications, but got the change wrong for
all architectures other than x86, which now store an uninitialized
value into the device register.
Gcc helpfully warns about this:
../drivers/scsi/hpsa.c: In function 'hpsa_set_driver_support_bits':
../drivers/scsi/hpsa.c:6373:17: warning: 'driver_support' is used uninitialized in this function [-Wuninitialized]
driver_support |= ENABLE_UNIT_ATTN;
^
This moves the #ifdef so only the prefetch-enable is conditional
on x86, not also reading the initial register contents.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 28e134464734 "[SCSI] hpsa: enable unit attention reporting"
Cc: stable@vger.kernel.org # v3.14+
Acked-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/hpsa.c')
| -rw-r--r-- | drivers/scsi/hpsa.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 10aed7dae609..6b4d0467dff0 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -6366,9 +6366,9 @@ static inline void hpsa_set_driver_support_bits(struct ctlr_info *h) { u32 driver_support; -#ifdef CONFIG_X86 - /* Need to enable prefetch in the SCSI core for 6400 in x86 */ driver_support = readl(&(h->cfgtable->driver_support)); + /* Need to enable prefetch in the SCSI core for 6400 in x86 */ +#ifdef CONFIG_X86 driver_support |= ENABLE_SCSI_PREFETCH; #endif driver_support |= ENABLE_UNIT_ATTN; |