Messages in this thread | | | Date | Fri, 10 May 2002 02:04:46 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] remove 2TB block device limit |
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Anton Altaparmakov wrote: > > ... > >This code: > > > > printk("%lu%s", some_sector, some_string); > > > >will work fine with 32-bit sector_t. But with 64-bit sector_t it > >will generate a warning at compile-time and an oops at runtime. > > > >The same problem applies to dma_addr_t. Jeff, davem and I kicked > >that around a while back and ended up deciding that although there > >are a number of high-tech solutions, the dumb one was best: > > Why not the even dumber one? Forget FMT_SECTOR_T and always use %Lu and > typecast (unsigned long long)sector_t_variable in the printk. >
Agree. The nice thing about the typecast is that you can format the output with %06Lx, %9Ld, %Lo or whatever. The FMT_SECTOR_T thing forces you to use the chosen formatting.
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