| Message ID | 20150505070427.GA4979@tinar (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tuesday 05 May 2015 12:34:27 Tina Ruchandani wrote: > Function stex_gettime uses 'struct timeval' whose tv_sec value > will overflow on 32-bit systems in year 2038 and beyond. This patch > replaces the use of struct timeval and do_gettimeofday with > ktime_get_real_seconds, which returns a 64-bit seconds value. > > Suggested-by: Arnd Bergmann <arnd@arndb.de> > Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com> > -- [+ y2038 list] Looks good, Reviewed-by: Arnd Bergmann <arnd@arndb.de> > Changes in v3: > - Remove stex_gettime altogether, directly assign the timestamp. > Changes in v2: > - Change subject line to indicate that the patch is restricted to stex driver. > --- > --- > drivers/scsi/stex.c | 13 +++---------- > 1 file changed, 3 insertions(+), 10 deletions(-) > > diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c > index 98a62bc..84e196e 100644 > --- a/drivers/scsi/stex.c > +++ b/drivers/scsi/stex.c > @@ -25,6 +25,7 @@ > #include <linux/types.h> > #include <linux/module.h> > #include <linux/spinlock.h> > +#include <linux/ktime.h> > #include <asm/io.h> > #include <asm/irq.h> > #include <asm/byteorder.h> > @@ -362,14 +363,6 @@ MODULE_DESCRIPTION("Promise Technology SuperTrak EX Controllers"); > MODULE_LICENSE("GPL"); > MODULE_VERSION(ST_DRIVER_VERSION); > > -static void stex_gettime(__le64 *time) > -{ > - struct timeval tv; > - > - do_gettimeofday(&tv); > - *time = cpu_to_le64(tv.tv_sec); > -} > - > static struct status_msg *stex_get_status(struct st_hba *hba) > { > struct status_msg *status = hba->status_buffer + hba->status_tail; > @@ -1002,7 +995,7 @@ static int stex_common_handshake(struct st_hba *hba) > h->req_cnt = cpu_to_le16(hba->rq_count+1); > h->status_sz = cpu_to_le16(sizeof(struct status_msg)); > h->status_cnt = cpu_to_le16(hba->sts_count+1); > - stex_gettime(&h->hosttime); > + h->hosttime = cpu_to_le64(ktime_get_real_seconds()); > h->partner_type = HMU_PARTNER_TYPE; > if (hba->extra_offset) { > h->extra_offset = cpu_to_le32(hba->extra_offset); > @@ -1076,7 +1069,7 @@ static int stex_ss_handshake(struct st_hba *hba) > h->req_cnt = cpu_to_le16(hba->rq_count+1); > h->status_sz = cpu_to_le16(sizeof(struct status_msg)); > h->status_cnt = cpu_to_le16(hba->sts_count+1); > - stex_gettime(&h->hosttime); > + h->hosttime = cpu_to_le64(ktime_get_real_seconds()); > h->partner_type = HMU_PARTNER_TYPE; > h->extra_offset = h->extra_size = 0; > scratch_size = (hba->sts_count+1)*sizeof(u32); > -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 98a62bc..84e196e 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -25,6 +25,7 @@ #include <linux/types.h> #include <linux/module.h> #include <linux/spinlock.h> +#include <linux/ktime.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/byteorder.h> @@ -362,14 +363,6 @@ MODULE_DESCRIPTION("Promise Technology SuperTrak EX Controllers"); MODULE_LICENSE("GPL"); MODULE_VERSION(ST_DRIVER_VERSION); -static void stex_gettime(__le64 *time) -{ - struct timeval tv; - - do_gettimeofday(&tv); - *time = cpu_to_le64(tv.tv_sec); -} - static struct status_msg *stex_get_status(struct st_hba *hba) { struct status_msg *status = hba->status_buffer + hba->status_tail; @@ -1002,7 +995,7 @@ static int stex_common_handshake(struct st_hba *hba) h->req_cnt = cpu_to_le16(hba->rq_count+1); h->status_sz = cpu_to_le16(sizeof(struct status_msg)); h->status_cnt = cpu_to_le16(hba->sts_count+1); - stex_gettime(&h->hosttime); + h->hosttime = cpu_to_le64(ktime_get_real_seconds()); h->partner_type = HMU_PARTNER_TYPE; if (hba->extra_offset) { h->extra_offset = cpu_to_le32(hba->extra_offset); @@ -1076,7 +1069,7 @@ static int stex_ss_handshake(struct st_hba *hba) h->req_cnt = cpu_to_le16(hba->rq_count+1); h->status_sz = cpu_to_le16(sizeof(struct status_msg)); h->status_cnt = cpu_to_le16(hba->sts_count+1); - stex_gettime(&h->hosttime); + h->hosttime = cpu_to_le64(ktime_get_real_seconds()); h->partner_type = HMU_PARTNER_TYPE; h->extra_offset = h->extra_size = 0; scratch_size = (hba->sts_count+1)*sizeof(u32);
Function stex_gettime uses 'struct timeval' whose tv_sec value will overflow on 32-bit systems in year 2038 and beyond. This patch replaces the use of struct timeval and do_gettimeofday with ktime_get_real_seconds, which returns a 64-bit seconds value. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com> -- Changes in v3: - Remove stex_gettime altogether, directly assign the timestamp. Changes in v2: - Change subject line to indicate that the patch is restricted to stex driver. --- --- drivers/scsi/stex.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-)