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| author | Grant Grundler <grundler@parisc-linux.org> | 2007-02-11 00:04:04 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-02-16 15:30:10 -0800 |
| commit | 26ba05e4c66ad3fafe08412ffcf8c328cc4640b0 (patch) | |
| tree | f9abd84f3a90232ac2df9489e6f0e6514ce07123 /Documentation/pci.txt | |
| parent | f95d882d81ee731be2a4a3b34f86810e29b68836 (diff) | |
| download | linux-26ba05e4c66ad3fafe08412ffcf8c328cc4640b0.tar.bz2 | |
PCI: pci.txt fix __devexit() usage
Marin Mitov <mitov@issp.bas.bg> spotted a brainfart where I had
failed to update copied text with *_remove and __devexit().
Marin made a good comment in his email to me:
| mydriver_probe() is _always_ executed, while mydriver_remove() is not.
| See: include/linux/init.h
Which says:
/* Functions marked as __devexit may be discarded at kernel link time, depending
on config options. Newer versions of binutils detect references from
retained sections to discarded sections and flag an error. Pointers to
__devexit functions must use __devexit_p(function_name), the wrapper will
insert either the function_name or NULL, depending on the config options.
*/
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/pci.txt')
| -rw-r--r-- | Documentation/pci.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/pci.txt b/Documentation/pci.txt index fd5028eca13e..cdf2f3c0ab14 100644 --- a/Documentation/pci.txt +++ b/Documentation/pci.txt @@ -205,8 +205,8 @@ Tips on when/where to use the above attributes: exclusively called by the probe() routine, can be marked __devinit. Ditto for remove() and __devexit. - o If mydriver_probe() is marked with __devinit(), then all address - references to mydriver_probe must use __devexit_p(mydriver_probe) + o If mydriver_remove() is marked with __devexit(), then all address + references to mydriver_remove must use __devexit_p(mydriver_remove) (in the struct pci_driver declaration for example). __devexit_p() will generate the function name _or_ NULL if the function will be discarded. For an example, see drivers/net/tg3.c. |