Commit 0b9e7b74 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Christoph Hellwig

hpsa: fix non-x86 builds

commit 28e13446 "[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: default avatarArnd Bergmann <arnd@arndb.de>
Fixes: 28e13446 "[SCSI] hpsa: enable unit attention reporting"
Cc: stable@vger.kernel.org # v3.14+
Acked-by: default avatarStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 6aa4c361
...@@ -6366,9 +6366,9 @@ static inline void hpsa_set_driver_support_bits(struct ctlr_info *h) ...@@ -6366,9 +6366,9 @@ static inline void hpsa_set_driver_support_bits(struct ctlr_info *h)
{ {
u32 driver_support; 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)); 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; driver_support |= ENABLE_SCSI_PREFETCH;
#endif #endif
driver_support |= ENABLE_UNIT_ATTN; driver_support |= ENABLE_UNIT_ATTN;
......
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