Messages in this thread Patch in this message | | | From | "Sergey V." <> | Subject | Re: [PATCH v2]ipmi:ipmi_si_intf.c Fix warning: variable 'addr_space' set but not used | Date | Wed, 7 Jul 2010 00:14:36 +0400 |
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On Tuesday 06 of July 2010 22:30:00 Justin P. Mattock wrote: > > > Hello Justin. > > > > [...] > >> @@ -2021,10 +2020,6 @@ static __devinit int try_init_spmi(struct SPMITable > > *spmi) > >> } > >> > >> if (spmi->addr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) > >> - addr_space = IPMI_MEM_ADDR_SPACE; > >> - else > >> - addr_space = IPMI_IO_ADDR_SPACE; > >> - > >> info = kzalloc(sizeof(*info), GFP_KERNEL); > >> if (!info) { > >> printk(KERN_ERR PFX "Could not allocate SI data (3)\n"); > > > > This looks like after applying this patch 'info = ...' will be part of > > if statement (without indent before 'info = ...') > > > > if (spmi->addr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) > > info = kzalloc(sizeof(*info), GFP_KERNEL); > > > > It's correct? > > > > Thanks > > > > the original patch I dont think this is correct. a bit confusing with > the if(!info) at the bottom of this. > here's an updated version if it looks to be correct I'll resend if not > I'll redu: > > > --- > drivers/char/ipmi/ipmi_si_intf.c | 7 ------- > 1 files changed, 0 insertions(+), 7 deletions(-) > > diff --git a/drivers/char/ipmi/ipmi_si_intf.c > b/drivers/char/ipmi/ipmi_si_intf.c > index 094bdc3..ef03ecd 100644 > --- a/drivers/char/ipmi/ipmi_si_intf.c > +++ b/drivers/char/ipmi/ipmi_si_intf.c > @@ -2013,19 +2013,12 @@ struct SPMITable { > static __devinit int try_init_spmi(struct SPMITable *spmi) > { > struct smi_info *info; > - u8 addr_space; > > if (spmi->IPMIlegacy != 1) { > printk(KERN_INFO PFX "Bad SPMI legacy %d\n", spmi->IPMIlegacy); > return -ENODEV; > } > > - if (spmi->addr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) > - addr_space = IPMI_MEM_ADDR_SPACE; > - else > - addr_space = IPMI_IO_ADDR_SPACE; > - > - info = kzalloc(sizeof(*info), GFP_KERNEL); > if (!info) { > printk(KERN_ERR PFX "Could not allocate SI data (3)\n"); > return -ENOMEM; > -- 1.7.1.rc1.21.gf3bd6 > > Thanks for the info on this.. > > Justin P. Mattock >
Sorry, but I think that new patch is not correct.
Why do you delete this row "info = kzalloc(sizeof(*info), GFP_KERNEL)"? There is the only one unused variable `addr_space`, so I think it should be removed, that's all.
The following code is correct and not need to be changed:
info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { printk(KERN_ERR PFX "Could not allocate SI data (3)\n");
Please see below my patch. Thanks.
--- Fix compile warning drivers/char/ipmi/ipmi_si_intf.c: In function 'try_init_spmi': drivers/char/ipmi/ipmi_si_intf.c:2016:8: warning: variable 'addr_space' set but not used
Signed-off-by: Sergey V. <sftp.mtuci@gmail.com> --- drivers/char/ipmi/ipmi_si_intf.c | 6 ------ 1 files changed, 0 insertions(+), 6 deletions(-)
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 094bdc3..1f5f025 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2013,18 +2013,12 @@ struct SPMITable { static __devinit int try_init_spmi(struct SPMITable *spmi) { struct smi_info *info; - u8 addr_space; if (spmi->IPMIlegacy != 1) { printk(KERN_INFO PFX "Bad SPMI legacy %d\n", spmi->IPMIlegacy); return -ENODEV; } - if (spmi->addr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) - addr_space = IPMI_MEM_ADDR_SPACE; - else - addr_space = IPMI_IO_ADDR_SPACE; - info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { printk(KERN_ERR PFX "Could not allocate SI data (3)\n"); -- 1.7.1
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