From mboxrd@z Thu Jan 1 00:00:00 1970 From: Helge Deller Subject: Re: __kernel_suseconds_t is int on PA-RISC (and SPARC64)? Date: Tue, 26 Aug 2008 22:24:18 +0200 Message-ID: <48B46672.1000902@gmx.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linux-parisc@vger.kernel.org, Linux/m68k , Linux Kernel Development To: Geert Uytterhoeven Return-path: In-Reply-To: List-ID: List-Id: linux-parisc.vger.kernel.org Geert Uytterhoeven wrote: > Apparently __kernel_suseconds_t is `int' on PA-RISC (and on SPARC64), > while it's `long' on all other platforms. > > Is there a specific reason for that? I don't know for sure, but arch/parisc/kernel/syscall_table.S states: /* even though manpage says struct timeval contains longs, ours has * time_t and suseconds_t -- both of which are safe wide/narrow */ ENTRY_COMP(setitimer) So it was probably chosen to be int so that it can be easily used in 32- and 64bit kernels (or compat code). Helge > This causes compiler warnings in the HP SDC Real Time Clock driver, > which is shared between PA-RISC and m68k: > > drivers/input/misc/hp_sdc_rtc.c:461: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:461: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:468: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:468: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:475: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:475: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:482: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:482: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:489: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > drivers/input/misc/hp_sdc_rtc.c:489: warning: format '%02d' expects type 'int', but argument 4 has type 'long int' > > Gr{oetje,eeting}s, > > Geert