#ifndef IOOPS_H
#define IOOPS_H

#include <sys/types.h>

extern int open_or_die(const char *file, int flags);
extern int open_or_die_m(const char *file, int flags, mode_t mode);
extern int dup_or_die(int oldfd);
extern void dup2_or_die(int oldfd, int newfd);
extern void create_or_die(const char *file, mode_t mode);
extern int tun_open_or_die(const char *name, int type);
extern void pipe_or_die(int pipefd[2], int flags);
extern ssize_t read_or_die(int fd, void *buf, size_t count);
extern ssize_t write_or_die(int fd, const void *buf, size_t count);
extern int read_blob_or_die(const char *file, void *blob, size_t count);
extern int write_blob_or_die(const char *file, const void *blob, size_t count);

#endif /* IOOPS_H */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=84baf1725dc532d9746df2d216c1921154767109'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=84baf1725dc532d9746df2d216c1921154767109'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/acpi?id=84baf1725dc532d9746df2d216c1921154767109'>acpi</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/acpi/fan.c?id=84baf1725dc532d9746df2d216c1921154767109'>fan.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='84baf1725dc532d9746df2d216c1921154767109'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;</td><td class='right'>2016-10-04 13:51:40 -0700</td></tr>
<tr><th>committer</th><td>Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;</td><td class='right'>2016-10-10 02:20:43 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/acpi/fan.c?id=84baf1725dc532d9746df2d216c1921154767109'>84baf1725dc532d9746df2d216c1921154767109</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/acpi/fan.c?id=84baf1725dc532d9746df2d216c1921154767109'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=84baf1725dc532d9746df2d216c1921154767109'>764c9d49ecfc2d33c5c195b91c2bdaff584ab830</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/acpi/fan.c?id=84baf1725dc532d9746df2d216c1921154767109'>drivers/acpi/fan.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/acpi/fan.c?id=c8d2bc9bc39ebea8437fd974fdbc21847bb897a3'>c8d2bc9bc39ebea8437fd974fdbc21847bb897a3</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/acpi/fan.c?id=84baf1725dc532d9746df2d216c1921154767109&amp;id2=c8d2bc9bc39ebea8437fd974fdbc21847bb897a3'>diff</a>)</td></tr></table>
<div class='commit-subject'>ACPI / fan: Fix error reading cur_state</div><div class='commit-msg'>On some platforms with ACPI4 variable speed fan, reading cur_state from
cooling device returns "invalid value" error. This confuses user space
applications.

This issue occurs as the current driver doesn't take account of
"FineGrainControl" from _FIF(Fan Information). When the "FineGrainControl"
is set, _FSL(FSL Set Level) takes argument as a percent, which doesn't
have to match from any control value from _FPS(Fan Performance States).
It is also possible that the Fan is not actually running at the requested
speed returning a lower speed.
On some platforms the BIOS is setting fan speed to a level during boot,
which will not have an exact match to _FPS control values. The current
implementation will treat this level as invalid value.

The simple change is to atleast return state corresponding to a maximum
control value in the _FPS compared to the current level.

Signed-off-by: Srinivas Pandruvada &lt;srinivas.pandruvada@linux.intel.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=84baf1725dc532d9746df2d216c1921154767109'>Diffstat</a> (limited to 'drivers/acpi/fan.c')</div><table summary='diffstat' class='diffstat'>