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From: Dirk Behme <dirk.behme@googlemail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Warning in omap3_mmc.c
Date: Sun, 06 Sep 2009 09:55:55 +0200	[thread overview]
Message-ID: <4AA36B0B.2020100@googlemail.com> (raw)


Recent U-Boot head gives (e.g. for omap3_beagle_config)

omap3_mmc.c: In function 'mmc_detect_card': 

omap3_mmc.c:279: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
omap3_mmc.c:292: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
omap3_mmc.c:336: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
omap3_mmc.c: In function 'configure_mmc': 

omap3_mmc.c:460: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
omap3_mmc.c:461: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
omap3_mmc.c:462: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
omap3_mmc.c:463: warning: dereferencing type-punned pointer will break 
strict-aliasing rules

This is from e.g.

279: ocr_recvd = ((mmc_resp_r3 *) resp)->ocr;
336: mmc_card_cur->RCA = ((mmc_resp_r6 *) resp)->newpublishedrca;

with

unsigned int resp[4];

and

typedef struct {
	unsigned int ocr;
} mmc_resp_r3;

typedef struct {
	unsigned short cardstatus;
	unsigned short newpublishedrca;
} mmc_resp_r6;

Any idea how to fix this?

Many thanks

Dirk

             reply	other threads:[~2009-09-06  7:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-06  7:55 Dirk Behme [this message]
2009-09-06 13:17 ` [U-Boot] Warning in omap3_mmc.c Jean-Christophe PLAGNIOL-VILLARD

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