diff options
| author | Gavin Shan <shangw@linux.vnet.ibm.com> | 2012-10-17 19:53:30 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-11-15 13:00:08 +1100 |
| commit | 490e078d6a21aa90d54f36cdcc544e87070175bd (patch) | |
| tree | 5fd8dbdc77ee9504b1b32db19c044db75c7f24dc /arch/powerpc | |
| parent | 40c935ae3de413d6bbc5471c231c90e26a63d562 (diff) | |
powerpc/pnv: Avoid bogus output
There're couples of functions defined to print debugging messages
during initializing P7IOC. However, we got bogus output from those
functions like pe_info(). The problem here is that the message
level (the first parameter to printk()) isn't printable and that
caused the bogus output.
The patch fixes the issue by merging __pe_printk() to the macro
define_pe_printk_level() so that we can pass the message level
directly to printk().
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 471aa3ccd9fd..53d052e95cfc 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -34,24 +34,12 @@ #include "powernv.h" #include "pci.h" -static int __pe_printk(const char *level, const struct pnv_ioda_pe *pe, - struct va_format *vaf) -{ - char pfix[32]; - - if (pe->pdev) - strlcpy(pfix, dev_name(&pe->pdev->dev), sizeof(pfix)); - else - sprintf(pfix, "%04x:%02x ", - pci_domain_nr(pe->pbus), pe->pbus->number); - return printk("pci %s%s: [PE# %.3d] %pV", level, pfix, pe->pe_number, vaf); -} - #define define_pe_printk_level(func, kern_level) \ static int func(const struct pnv_ioda_pe *pe, const char *fmt, ...) \ { \ struct va_format vaf; \ va_list args; \ + char pfix[32]; \ int r; \ \ va_start(args, fmt); \ @@ -59,7 +47,16 @@ static int func(const struct pnv_ioda_pe *pe, const char *fmt, ...) \ vaf.fmt = fmt; \ vaf.va = &args; \ \ - r = __pe_printk(kern_level, pe, &vaf); \ + if (pe->pdev) \ + strlcpy(pfix, dev_name(&pe->pdev->dev), \ + sizeof(pfix)); \ + else \ + sprintf(pfix, "%04x:%02x ", \ + pci_domain_nr(pe->pbus), \ + pe->pbus->number); \ + r = printk(kern_level "pci %s: [PE# %.3d] %pV", \ + pfix, pe->pe_number, &vaf); \ + \ va_end(args); \ \ return r; \ |